JP3203433U - Solar cell evaluation equipment - Google Patents

Abstract

A solar cell evaluation apparatus capable of improving the reliability in evaluating the characteristics of a solar cell is provided. A mounting unit on which a solar cell unit is mounted, an irradiation unit capable of moving in a direction toward and away from the mounting unit, and a guide unit for guiding the irradiation unit. 3, a position adjustment mechanism 4 that adjusts the position of the irradiation unit 2 with respect to the mounting unit 1, a measurement unit 7 that measures the characteristics of the solar cell unit 30 irradiated with the test light, and a power supply that supplies power to the light source 13 The solar cell evaluation apparatus 10 provided with the part 8 is provided. The placement unit 1 has a slide movement mechanism that slides the solar cell unit 30 in a direction that intersects the direction in which the light source 13 approaches and separates from the light source 13. The irradiation unit 2 includes a heat radiating unit 14 that can transfer heat to and from the light source 13 by heat conduction. The position adjustment mechanism 4 can position the irradiation unit 2 at an arbitrary position within the movable range of the irradiation unit 2. [Selection] Figure 1

Description

  The present invention relates to a solar cell evaluation apparatus.

Examples of solar cells include organic solar cells using organic semiconductors, dye-sensitized solar cells in which a dye is adsorbed on titanium oxide, silicon solar cells using silicon, and compound solar cells using compound semiconductors. .
Since a solar cell has an inherent spectral sensitivity characteristic based on a semiconductor material or the like, the characteristic (for example, photoelectric conversion characteristic) greatly depends on the illuminance of the irradiated light. Then, in order to evaluate the characteristic of a solar cell correctly, the evaluation apparatus which can irradiate a solar cell so that it may become predetermined illumination intensity is proposed (for example, refer patent document 1).

JP 2014-038921 A

For example, organic solar cells are expected to be used indoors, and establishment of evaluation methods under artificial light sources is expected. However, an evaluation apparatus using a normal artificial light source (fluorescent lamp, incandescent bulb, LED illumination, etc.) has a large variation in light amount, and it has been difficult to perform highly reliable and reproducible evaluation.
In particular, when a solar cell suitable for light with a low illuminance is to be measured, such as an organic solar cell, the test light under a low illuminance condition tends to become unstable with a conventional evaluation device, and a highly accurate evaluation is not possible. was difficult.
This invention is made | formed in view of the said subject, Comprising: It aims at providing the evaluation apparatus of the solar cell which can improve the reliability in the evaluation of the characteristic of a solar cell.

  The present invention has a mounting portion on which a solar cell to be measured is mounted, and a light source that irradiates test light to the solar cell placed on the mounting portion. An irradiation unit that is movable in a separating direction, a guide unit that guides the irradiation unit toward and away from the mounting unit, and a position that adjusts the position of the irradiation unit with respect to the mounting unit An adjustment mechanism; a measurement unit that measures characteristics of the solar cell irradiated with the test light; and a power supply unit that supplies power to the light source, wherein the placement unit approaches and moves away from the light source. The solar cell has a moving mechanism that slides the solar cell in a direction that intersects the light source, and the irradiation unit includes a heat radiating unit capable of transferring heat to and from the light source by heat conduction, and the position adjusting mechanism is The illumination unit at an arbitrary position within the movable range of the irradiation unit. Providing apparatus for evaluating a solar cell which is capable positioning the parts.

According to the present invention, since the irradiation unit can be positioned at an arbitrary position within the movable range by the position adjustment mechanism, the illuminance of the test light irradiated on the solar cell can be accurately determined. Therefore, the reliability in evaluating the characteristics of the solar cell can be improved.
According to the present invention, since low-illuminance test conditions can be accurately determined, measurement accuracy can be improved when a solar cell suitable for low-illuminance light, such as an organic solar cell, is a measurement target. it can.
In the present invention, since the mounting unit includes a moving mechanism, the position of the irradiation unit is adjusted while confirming the illuminance of the test light at the measurement position by the illuminance measuring means, and then the solar cell is moved to the measurement position by the moving mechanism. Can be arranged. Thereby, the illuminance of the test light at the measurement position can be measured accurately and easily. Therefore, the illuminance of the test light irradiated on the solar cell can be accurately grasped. Therefore, the reliability in evaluating the characteristics of the solar cell can be improved.

In the solar cell evaluation apparatus, the position adjustment mechanism includes a support body that supports the irradiation unit, and the support body is movable along the guide unit, and at any position within a movable range. A configuration that can be positioned with respect to the guide portion can be employed.
According to this structure, the structure for moving an irradiation part along a guide part can be simplified. Therefore, the cost can be reduced and the operation can be facilitated.

In the solar cell evaluation apparatus, the position adjustment mechanism further includes a positioning portion, and the positioning portion employs a configuration in which the support body is positioned with respect to the guide portion at an arbitrary position within the movable range. be able to.
According to this structure, the structure for positioning a support body can be simplified. Therefore, the cost can be reduced and the operation can be facilitated.

In the solar cell evaluation apparatus, the heat dissipation portion may be a metal plate provided in contact with the light source.
According to this configuration, the efficiency of heat dissipation can be increased and the temperature rise of the light source can be suppressed.

In the solar cell evaluation apparatus, the power supply unit may employ a configuration having a conversion circuit that converts an alternating current into a direct current.
According to this configuration, a light source without the conversion circuit can be employed. Therefore, the conversion circuit is not affected by the temperature rise of the light source. Therefore, fluctuations in illuminance due to the temperature rise of the light source can be suppressed, and the illuminance of the test light applied to the solar cell can be stabilized.

In the solar cell evaluation apparatus, it is possible to employ a configuration further including a light shielding body that surrounds the space between the placement unit and the irradiation unit.
According to this configuration, since the external light can be blocked by the light shield, it is possible to avoid the external light from affecting the measurement in the evaluation apparatus. In particular, in an evaluation test under a low illuminance condition, a slight amount of light greatly affects the test condition. However, the measurement accuracy can be improved by reducing the influence of the light by the light shielding body.

The present invention provides the following techniques.
A mounting unit on which a solar cell to be measured is mounted, and a light source that irradiates test light to the solar cell placed on the mounting unit, in a direction approaching and separating from the mounting unit. An irradiation unit that is movable; a guide unit that guides the irradiation unit toward and away from the mounting unit; and a position adjustment mechanism that adjusts the position of the irradiation unit with respect to the mounting unit; A measuring unit that measures characteristics of the solar cell irradiated with the test light; and a power supply unit that supplies power to the light source, wherein the mounting unit intersects with a direction of approaching and separating from the light source. A moving mechanism that slides the solar cell in a direction to move, the irradiating unit includes a heat radiating unit capable of transferring heat to and from the light source by heat conduction, and the position adjusting mechanism includes the irradiating unit. Position the irradiation unit at any position within the movable range of The position of the irradiation unit is adjusted by the position adjustment mechanism so that the illuminance of the test light emitted from the light source to the solar cell becomes a predetermined value. The evaluation method of the solar cell which has an adjustment process and the measurement process which measures the characteristic of the said solar cell with which the said test light was irradiated by the said measurement part.
The adjustment step includes an illuminance confirmation step in which an illuminance measurement unit is arranged at a measurement position in the mounting unit, and the position of the irradiation unit is adjusted while checking the illuminance of the test light at the measurement position by the illuminance measurement unit. And a measurement preparation step of moving the illuminance measuring means in a direction away from the measurement position by the moving mechanism and disposing the solar cell at the measurement position.

According to the present invention, since the irradiation unit can be positioned at an arbitrary position within the movable range by the position adjustment mechanism, the illuminance of the test light irradiated on the solar cell can be accurately determined. Therefore, the reliability in evaluating the characteristics of the solar cell can be improved.
According to the present invention, since the test conditions for low illuminance can be accurately determined, the measurement accuracy can be increased when a solar cell suitable for light with low illuminance, such as an organic solar cell, is a measurement target. .

It is a front view which shows schematic structure of the evaluation apparatus of 1st Embodiment. It is a figure which shows the II cross section of the evaluation apparatus of FIG. It is an enlarged view which shows a part of evaluation apparatus of FIG. It is an enlarged view which shows a part of evaluation apparatus of FIG. It is a perspective view which shows typically the irradiation part of the evaluation apparatus of FIG. It is a perspective view which shows schematic structure of the evaluation apparatus of FIG. It is a perspective view which shows the mounting part and solar cell of the evaluation apparatus of FIG. It is a disassembled perspective view which shows the mounting part and solar cell of the evaluation apparatus of FIG. It is a side view which shows the mounting part and solar cell of the evaluation apparatus of FIG. It is a top view which shows the mounting part of the evaluation apparatus of FIG. 1, and its operation | movement. It is a top view which shows the modification of the mounting part of the evaluation apparatus of FIG. It is a disassembled perspective view which shows the container which can accommodate a solar cell. It is a front view which shows schematic structure of the evaluation apparatus of 2nd Embodiment. It is an enlarged view which shows a part of evaluation apparatus of a previous figure. It is a front view which shows schematic structure of the evaluation apparatus of 3rd Embodiment. It is a front view which shows a part of evaluation apparatus of 4th Embodiment. It is a front view which shows a part of evaluation apparatus of 5th Embodiment. It is a figure which shows the structure of the position adjustment mechanism of the evaluation apparatus of a previous figure. It is a front view which shows a part of evaluation apparatus of 6th Embodiment. It is a front view which shows a part of evaluation apparatus of 7th Embodiment.

Hereinafter, based on a preferred embodiment, the present invention will be described with reference to the drawings.
[Solar Cell Evaluation Apparatus (First Embodiment)]
FIG. 1 is a front view showing a schematic configuration of an evaluation apparatus 10 that is a first embodiment of a solar cell evaluation apparatus (hereinafter, simply referred to as an evaluation apparatus) according to the present invention. FIG. 2 is a diagram illustrating a II cross section of the evaluation apparatus 10. FIG. 3 is an enlarged view showing a part of the evaluation apparatus 10. FIG. 4 is an enlarged view showing a part of the evaluation apparatus 10. FIG. 5 is a perspective view schematically showing the irradiation unit 2 of the evaluation apparatus 10. FIG. 6 is a perspective view illustrating a schematic configuration of the evaluation apparatus 10. FIG. 7 is a perspective view showing the placement unit 1 and the solar cell unit 30 of the evaluation device 10. FIG. 8 is an exploded perspective view showing the placement unit 1 and the solar cell unit 30 of the evaluation device 10. FIG. 9 is a side view showing the placement unit 1 and the solar cell unit 30 of the evaluation apparatus 10. FIG. 10 is a plan view showing the placement unit 1 of the evaluation apparatus 10 and its operation.

  In the following description, “upper” and “lower” correspond to the upper and lower sides in FIG. The side of the irradiation unit 2 with respect to the mounting unit 1 is referred to as the upper side. Further, the height direction is the upper side in FIG. “Plan view” means viewing from above and below. The X direction is the width direction of the bottom wall portion 11. The Y direction is the depth direction of the bottom wall portion 11. The Z direction is a direction orthogonal to the X direction and the Y direction, and is the height direction of the evaluation device 10.

As shown in FIGS. 1 to 3, the evaluation apparatus 10 includes an apparatus main body 10 </ b> A, a measurement unit 7, a power supply unit 8, and a control unit 9.
The apparatus main body 10 </ b> A includes a placement unit 1, an irradiation unit 2, a guide unit 3, a position adjustment mechanism 4, a support base 5, and a light shielding body 6.

As shown in FIGS. 1, 6, and 10, the placement unit 1 includes, for example, a bottom wall portion 11 and a slide moving mechanism 50.
The bottom wall portion 11 is, for example, rectangular in plan view. The main surface 11a (upper surface) of the bottom wall portion 11 is preferably perpendicular to the vertical direction.

As shown in FIGS. 10A and 10B, the slide moving mechanism 50 includes two guide rails 51 and 51 and a mounting table 12.
The guide rails 51 and 51 are provided on the upper surface 11 a of the bottom wall portion 11. The guide rails 51 and 51 are each formed in a straight line shape in plan view, and are arranged in parallel at intervals. The extending direction of the guide rail 51 is a direction perpendicular to the vertical direction (direction approaching and separating from the light source).

The mounting table 12 is formed in a plate shape, and is provided on the main surface 11 a of the bottom wall portion 11. On the main surface 12 a (upper surface) of the mounting table 12, the solar cell unit 30 to be measured can be mounted. The main surface 12a is preferably perpendicular to the vertical direction.
The mounting table 12 can slide along the guide rail 51.

As shown in FIGS. 1 to 3 and FIG. 5, the irradiating unit 2 includes a light source 13 and a heat radiating unit 14.
As the light source 13, an LED (light emitting diode) is preferably used. The light source 13 is preferably a light emitting element that emits light by direct current.
The light source 13 is not limited to an LED, and an LED bulb (LED lighting device), a fluorescent lamp, an incandescent bulb, a semiconductor laser (LD), or the like may be used.

As shown in FIGS. 2 and 5, in this embodiment, the light source 13 includes a first light source 13a provided in the center of the lower surface 14a of the heat radiating portion 14, and a + X direction and −X from the first light source 13a on the lower surface 14a. Second and third light sources 13b and 13c provided at positions distant from each other in the direction, and fourth and fifth light sources 13d and 13e provided at positions distant from the first light source 13a in the + Y direction and the −Y direction, respectively. It consists of.
As shown in FIG. 2, the + X direction is one of the directions along the first edge 14 b of the heat radiating portion 14, and the −X direction is the opposite direction. The + Y direction is one of the directions along the second edge 14c adjacent to the first edge 14b, and the -Y direction is the opposite direction.
The distances between the second to fifth light sources 13b to 13e and the first light source 13a are preferably equal to each other.

The light source 13 is preferably detachable from the heat radiating unit 14. In order to detachably configure the light source 13 and the heat radiating portion 14, a detachable engagement structure can be employed for the light source 13 and the lower surface 14 a of the heat radiating portion 14. For example, the light source 13 has an engaging portion (not shown), and the lower surface 14a of the heat radiating portion 14 has an engaging receiving portion (not shown) that can be detachably engaged with the engaging portion. it can.
By making the light source 13 attachable to and detachable from the heat radiating portion 14, the light source 13 can be easily replaced. By replacing the light source 13 with another light source having a different light quantity, wavelength, etc., the illuminance, wavelength, etc. of the test light can be easily adjusted.

The heat radiation part 14 is formed in a plate shape, for example. The material of the heat radiating portion 14 is not particularly limited, but metals, resins, ceramics, and the like can be used. Among them, metals are preferable because of high thermal conductivity. For example, a metal plate made of aluminum, aluminum alloy, copper, copper alloy, stainless steel, or the like is suitable. If the heat dissipation part 14 is made of metal, the efficiency of heat dissipation can be increased and the temperature rise of the light source 13 can be suppressed.
The heat dissipating part 14 has, for example, a rectangular plate shape in plan view. It is preferable that the lower surface 14a of the heat radiating portion 14 is perpendicular to the vertical direction.

As shown in FIG. 3, the heat radiating unit 14 is configured to be able to exchange heat with the light source 13 by heat conduction. It is preferable that the heat radiating part 14 is in contact with the light source 13 directly or indirectly.
In the illustrated example, the light source 13 is provided on the lower surface 14 a of the heat radiating portion 14. The light source 13 is in contact with the lower surface 14a over the entire upper surface 13f, and heat can be transferred between the upper surface 13f and the lower surface 14a by heat conduction.
In addition, the light source 13 may contact | abut indirectly to the thermal radiation part 14 via the intermediate body (not shown) which has thermal conductivity. Even in this case, the heat radiating unit 14 can transfer heat to and from the light source 13 through the intermediate body by heat conduction.

  As shown in FIGS. 4 and 5, the heat radiating portion 14 is formed with support body insertion holes 14 e through which the main body portion 22 of the support body 20 is inserted at positions close to the four corner portions 14 d.

As shown in FIGS. 1, 2, and 6, the support base 5 has a support column 16 and an upper wall portion 17.
The support column 16 is erected upward from the main surface 11 a of the bottom wall portion 11 of the placement portion 1. In the illustrated example, the support columns 16 are provided at positions close to the four corners 11 b of the main surface 11 a of the bottom wall 11.
The upper wall portion 17 is provided at the upper end of the support column 16. The upper wall portion 17 has, for example, a rectangular plate shape in plan view. It is preferable that the upper wall portion 17 has a size and a shape that substantially coincide with the placement portion 1 in plan view. The upper wall portion 17 is provided above the irradiation unit 2. The upper wall portion 17 preferably has a light shielding property.

The guide portion 3 is erected from the main surface 11 a of the bottom wall portion 11 of the placement portion 1 toward the lower surface of the upper wall portion 17. The guide part 3 is formed in a columnar shape, for example. The guide part 3 is provided along the up-down direction, and can guide the irradiation part 2 in the up-down direction as will be described later.
In the example of illustration, the guide part 3 is provided in the position close | similar to the four corner | angular parts 11b of the main surface 11a of the bottom wall part 11, respectively. The guide part 3 is provided at a position on the inner side of the support column 16. The lower end of the guide portion 3 is fixed to the main surface 11 a of the bottom wall portion 11, and the upper end of the guide portion 3 is fixed to the lower surface of the upper wall portion 17. The guide part 3 is comprised from a metal, resin, etc., for example.

As shown in FIGS. 3 and 4, the position adjustment mechanism 4 includes a support 20 that supports the irradiation unit 2 and a fixture 21 (positioning unit) that positions the support 20 on the guide 3.
The support 20 includes a cylindrical main body 22 and a disk-shaped flange 23 that protrudes radially outward from the upper end of the main body 22.
The support 20 has a guide part insertion hole 20a through which the guide part 3 is inserted. The guide portion insertion hole 20 a has a circular cross section, for example, and is formed so as to penetrate along the central axes of the main body portion 22 and the flange portion 23.

A fixture insertion hole 22 a is formed in the main body portion 22 along the radial direction of the main body portion 22. The fixture insertion hole 22a is formed so as to penetrate from the outer surface of the main body portion 22 to the inner surface of the guide portion insertion hole 20a. The fixture insertion hole 22a has, for example, a female screw on the inner surface.
The main body 22 is inserted through the support insertion hole 14 e of the heat radiating unit 14. The support 20 is fixed to the heat dissipation part 14.

The fixture 21 includes, for example, a head 21a and a shaft portion 21b extending from the head 21a. The shaft portion 21b has, for example, a male screw that is screwed into a female screw of the fixture insertion hole 22a.
The fixing tool 21 can fix the support body 20 to the guide portion 3 by screwing at an arbitrary position within a movable range in the vertical direction.

The support 20 can move in the vertical direction along the guide portion 3.
Since the support 20 is fixed to the heat radiating portion 14, the heat radiating portion 14 is also moved in the vertical direction along the guide portion 3 as the support 20 moves up and down (direction approaching and separating from the mounting portion 1). ).

Since the position adjusting mechanism 4 can fix the support 20 to the guide portion 3 at any position within the movable range in the vertical direction by the fixing tool 21, the irradiation unit 2 can be moved at any height within the movable range. Can be positioned.
Therefore, the distance between the placing unit 1 and the irradiation unit 2 can be adjusted steplessly within the movable range of the irradiation unit 2.

  The movable range of the irradiation unit 2 is, for example, a range from a height position where the lowering is restricted (lowering restriction position) to a height position where the ascent is restricted (rising restriction position). A descent | fall control position is a height position where the fall of the irradiation part 2 is controlled, for example, when the irradiation part 2 contact | abuts to the solar cell unit 30. FIG. The rising restriction position is a height position at which the raising of the irradiation unit 2 is restricted, for example, when the support body 20 comes into contact with the fixed part 3 a provided at the upper end of the guide part 3.

As shown in FIG. 6, the light shield 6 has a function of blocking external light that may affect the evaluation of the solar cell unit 30.
The light shield 6 is made of, for example, a sheet material or a plate material. The sheet material includes, for example, a cloth material. Examples of the sheet material include a coating type and a laminate type. The coating type includes, for example, a cloth material and a light-shielding resin layer formed on one surface of the cloth material. The laminate type includes, for example, a cloth material and a light-shielding sheet bonded to one surface of the cloth material.
A board | plate material consists of material which has light-shielding property. As the plate material, a resin plate, a metal plate, a ceramic plate, or the like can be used.

The light shield 6 includes a front light shield 24 a that covers the front surface 5 a of the support base 5, a side light shield 24 b that covers the side surface 5 b of the support base 5, and a back light shield 24 c that covers the back surface 5 c of the support base 5.
As the front light shield 24a, the side light shield 24b, and the back light shield 24c, the above-described sheet material or plate material can be used.
As the front light-shielding body 24a, it is preferable to use a sheet material because an operation of opening the front surface of the evaluation device 10 is easy.
The light shielding body 6 (the front light shielding body 24a, the side light shielding body 24b, and the back light shielding body 24c) surrounds the space between the placement unit 1 and the irradiation unit 2.

For example, when the evaluation apparatus 10 is used indoors, it is conceivable that light for indoor illumination enters the evaluation apparatus 10 as external light and affects the measurement. Since the light can be blocked by this, it is possible to avoid the light from affecting the measurement.
In particular, in an evaluation test under a low illuminance condition, a slight amount of light greatly affects the test condition. However, the measurement accuracy can be improved by reducing the influence of the light for room illumination by the light shield 6.

  The measurement unit 7 can measure current, voltage, and the like generated in the solar cell unit 30 irradiated with the test light from the light source 13.

The power supply unit 8 includes, for example, a circuit board (not shown) having a conversion circuit that converts alternating current into direct current. The power supply unit 8 can supply the direct current output obtained by the circuit board to the light source 13 via the path 25. The power supply unit 8 preferably includes, for example, a variable resistor and can arbitrarily adjust the current value.
The power supply unit 8 is separate from the apparatus main body 10A.

  As shown in FIG. 1, the control unit 9 is a personal computer or the like, and can adjust the current, voltage, and the like in the power supply unit 8, for example. Thereby, the illuminance of the test light from the light source 13 can be adjusted.

As shown in FIGS. 1 and 7 to 9, the solar cell unit 30, the support 42, and the antireflection sheet 47 are placed on the upper surface 12 a of the placement table 12 of the placement unit 1.
The solar cell unit 30 includes a sample stage 31, a lower fixing plate 32, a heat conductive sheet 33, a temperature sensor 34, a solar cell 35, a light shielding mask 36, and an upper fixing plate 37.

The sample stage 31 preferably includes a temperature adjusting means (for example, a cooling means using a Peltier element). Since the sample stage 31 is formed in a block shape and the upper surface 31a can be set to an arbitrary temperature by the temperature adjusting means, the temperature condition of the solar battery cell 34 can be adjusted.
The sample stage 31 may adopt a structure having a heat medium passage inside. In this case, the temperature condition of the solar battery cell 34 can be adjusted by introducing a heat medium (water or the like) into the flow path.

The lower fixing plate 32 is placed on the upper surface 31 a of the sample table 31.
As the heat conductive sheet 33, for example, a sheet material containing a highly heat conductive filler made of metal or the like can be used. The heat conductive sheet 33 is provided on the upper surface of the lower fixing plate 32. By using the heat conductive sheet 33, the heat conductivity can be increased between the solar battery cell 35 and the lower fixing plate 32.
As the temperature sensor 34, a resistance temperature detector, a thermocouple, a thermistor, or the like can be used. The temperature sensor 34 can measure the temperature of the solar battery cell 35. The temperature sensor 34 can output a measurement signal to the measurement unit 7 based on the measurement result.

As the solar battery cell 35, an organic solar battery, a silicon solar battery using silicon, a compound solar battery using a compound semiconductor, a solar battery module using a perovskite solar battery, or the like can be used.
Among these, in particular, since the characteristics (for example, photoelectric conversion characteristics) of the organic solar cell easily change depending on the illuminance, stabilization of the illuminance of the test light tends to contribute to improvement of measurement accuracy. In addition, organic solar cells are suitable for use under low illuminance conditions because their characteristics are unlikely to deteriorate even with low illuminance light. Therefore, the advantage in the case of applying the evaluation device 10 is great.

Examples of organic solar cells include dye-sensitized solar cells and PN junction solar cells.
The dye-sensitized solar cell can obtain a photovoltaic power by photoexcitation of electrons in an organic dye. A PN junction solar cell can form a PN junction using two types of organic semiconductors, and can obtain a photovoltaic power by photoexcitation of electrons in the PN junction.

Here, as an example of the solar battery cell 35, a solar battery cell using a dye-sensitized solar battery is cited.
As shown in FIG. 9, the solar battery cell 35 includes a transparent electrode 39, a counter electrode 40 provided to face the transparent electrode 39, and an electrolytic solution (between the transparent electrode 39 and the counter electrode 40). (Not shown). An oxide semiconductor layer (not shown) is formed on the transparent electrode 39, and a sensitizing dye is adsorbed on the oxide semiconductor layer.

The transparent electrode 39 is configured by providing a conductive light transmission film on the inner surface of a first base material 39a made of glass, plastic or the like. The conductive light transmission film is formed of ITO (indium-tin oxide), FTO (fluorine-doped tin oxide), IZO (indium-zinc oxide), ZnO (zinc oxide), or the like.
The counter electrode 40 is configured by providing a conductive film on the inner surface of the second base material 40a. As the conductive film, a film made of platinum, graphite or the like is used.

  As shown in FIGS. 7 to 9, the light shielding mask 36 is a plate-like body having an opening 36a through which test light can pass. The opening 36a is, for example, rectangular in plan view, and can define the irradiation range of the test light irradiated to the solar battery cell 35.

  The upper fixing plate 37 is a plate-like body having an opening 37a through which test light can pass. The opening 37a is, for example, rectangular in plan view. The size of the opening 37 a is determined so as not to block the test light irradiated to the solar battery cell 35 through the opening 36 a of the light shielding mask 36. The opening 37a in the illustrated example has an opening area larger than the area of the opening 36a and is formed so as to include the opening 36a in plan view.

  It is desirable that the upper fixing plate 37 can be fixed to the lower fixing plate 32 by screws or the like with a fixture (not shown). Accordingly, the solar battery cell 35 and the light shielding mask 36 can be positioned by sandwiching the solar battery cell 35 and the light shielding mask 36 with the lower fixing plate 32.

The support body 42 (height adjustment mechanism) supports the solar cell unit 30 from below by being installed between the mounting table 12 and the solar cell unit 30.
The support 42 includes a base portion 43, a pair of arm portions 44 and 44 whose base end portions are rotatably connected to the base portion 43, a receiving portion 45 to which the arm portions 44 are rotatably connected, and a pair of An adjustment mechanism 46 (adjustment screw) for adjusting the distance between the arm portions 44 and 44 is provided.

The base portion 43 includes a substrate 43a and a connection portion 43b provided on the upper surface side of the substrate 43a.
The arm portion 44 includes a lower arm 44a and an upper arm 44b that are connected to each other by a connecting portion 44c so as to be rotatable. A lower end of the lower arm 44 a is rotatably connected to a connection portion 43 b of the base portion 43.
The receiving portion 45 includes a receiving plate 45a and a connecting portion 45b provided on the lower surface side of the receiving plate 45a. The upper end of the upper arm 44b is rotatably connected to the connection part 45b.
The support body 42 can adjust the height position of the receiving portion 42 c by the adjustment mechanism 46 adjusting the distance between the connecting portions 44 c and 44 c of the pair of arm portions 44 and 44. Therefore, the height position of the solar cell unit 30 can be arbitrarily set.
The support may employ a liquid operation type (hydraulic jack or the like), a pneumatic type (air jack or the like), or a mechanical type (screw jack or the like).

As shown in FIGS. 7 and 8, the antireflection sheet 47 is provided so as to cover the solar cell unit 30 and the support 42.
As the antireflection sheet 47, a sheet material with little reflection of light on the surface, for example, a black felt cloth or the like can be used. The antireflection sheet 47 preferably has a light absorbing surface.
The antireflection sheet 47 has, for example, an opening 47a having a rectangular shape in plan view. The magnitude | size of the opening part 47a is determined so that the test light irradiated to the photovoltaic cell 35 may not be interrupted. The opening 47a in the illustrated example has an opening area larger than that of the opening 36a, and is formed so as to include the opening 36a in plan view.
The antireflection sheet 47 covers the solar cell unit 30 and the support 42, thereby preventing reflected light (for example, light reflected by the test light from the solar cell unit 30, the support 42, etc.) from adversely affecting the measurement. .

[Solar cell evaluation method]
Taking a case where the evaluation device 10 is used as an example, an example of a solar cell evaluation method will be described.
As shown in FIGS. 7 to 10, the evaluation method of this example uses a spectral irradiance meter 48 (illuminance measuring means). The spectral irradiance meter 48 can measure the illuminance of light received by the light receiving unit 49. The spectral irradiance meter 48 is mounted on the upper surface 12 a of the mounting table 12.
As shown in FIG. 9, the height position of the light receiving portion 49 is preferably the same as the height position of the solar battery cell 35. The height position of the solar battery cell 35 is, for example, the height position of the upper surface of the transparent electrode 39. By accurately adjusting the height position of the light receiving portion 49 to the height position of the upper surface of the transparent electrode 39, the amount of light that passes through the opening 36a of the light shielding mask 36 and is applied to the solar battery cell 35 is accurately measured. Can do.
The support 42 can be used to adjust the height position of the solar battery cell 35.

  The evaluation method of this example has an adjustment process (process 1) and a measurement process (process 2). The adjustment process includes an illuminance confirmation process (process 1-1) and a measurement preparation process (process 1-2).

(Process 1: Adjustment process)
(Step 1-1: Illuminance confirmation step)
As shown in FIG. 10B, the spectral irradiance meter 48 is located away from the solar cell unit 30 in plan view. The intersection of the X axis and the Y axis is a measurement position that is the center of the placement unit 1 in plan view.
The position of the mounting table 12 is adjusted so that the light receiving portion 49 of the spectral irradiance meter 48 is positioned at the measurement position in plan view.
Power is supplied to the light source 13 by the power supply unit 8, the light source 13 is turned on, and the illuminance of the test light at the measurement position is measured by the spectral irradiance meter 48.

The height position of the irradiation unit 2 is adjusted by the position adjustment mechanism 4 so that the illuminance of the test light emitted from the light source 13 to the spectral irradiance meter 48 becomes a predetermined value.
Since the position adjusting mechanism 4 can fix the support 20 to the guide portion 3 at any position within the movable range in the vertical direction by the fixing tool 21, the irradiation unit 2 can be moved at any height within the movable range. Can be positioned. Therefore, the illuminance of the test light irradiated on the solar cell unit 30 can be accurately determined.

(Process 1-2: Measurement preparation process)
As shown in FIG. 10C, the spectral irradiance meter 48 is removed from the measurement position by sliding the mounting table 12.
As shown in FIG. 10D, by further sliding the mounting table 12, the solar cell unit 30 (the opening 36a of the light shielding mask 36) reaches the measurement position.

The test light is irradiated to the solar battery cell 35 through the opening 36 a of the light shielding mask 36.
When the solar battery cell 35 is irradiated with light, the electrons of the sensitizing dye are excited. The excited electrons move from the transparent electrode 39 to the counter electrode 40. Sensitizing dyes that have lost electrons are reduced by taking electrons from iodine in the electrolyte. Power generation is performed by repeating this cycle.

In the irradiation part 2, the temperature generated by the light source 13 can be suppressed by transmitting the heat generated by the lighting of the light source 13 to the heat radiating part 14.
When the temperature of a light source such as an LED rises due to lighting for a long time, the amount of light may be affected. However, in the irradiating unit 2, since the temperature of the light source 13 can be suppressed by the heat radiating unit 14, Variations in the amount of light due to temperature changes can be reduced. Therefore, the illuminance of the test light irradiated on the solar cell unit 30 can be stabilized.

(Process 2: Measurement process)
The measurement unit 7 measures the current, voltage, and the like obtained in the solar battery cell 35. Based on the illuminance, current, voltage, and the like of the test light, photoelectric conversion characteristics such as photoelectric conversion efficiency, short-circuit current density, and open voltage can be obtained.

In the evaluation apparatus 10, since the irradiation unit 2 can be positioned at an arbitrary height within the movable range by the position adjustment mechanism 4, the illuminance of the test light irradiated on the solar cell unit 30 can be accurately determined. . Therefore, the reliability in evaluating the characteristics of the solar cell unit 30 can be enhanced.
Since the evaluation device 10 can accurately determine the test conditions of low illuminance, the measurement accuracy can be increased when a solar cell suitable for light with low illuminance is a measurement target, such as an organic solar cell. .

According to the evaluation device 10, the solar cell unit 30 can be slid by the slide moving mechanism 50, so that the illuminance of the test light at the measurement position can be accurately and easily measured in the illuminance confirmation step.
Therefore, the illuminance of the test light applied to the solar cell unit 30 can be accurately grasped. Therefore, the reliability in evaluating the characteristics of the solar cell unit 30 can be enhanced.

For example, in a light source (such as an LED lighting device) that includes a conversion circuit that converts alternating current into direct current, if the temperature rises due to lighting for a long time, the conversion circuit may be affected and the illuminance may become unstable. Conceivable.
On the other hand, in the evaluation apparatus 10 of the present embodiment, since the conversion circuit is in the power supply unit 8, the light source 13 without the conversion circuit can be employed. Therefore, the conversion circuit is not affected by the temperature rise of the light source 13 or the like. Therefore, the fluctuation of the illuminance due to the temperature rise of the light source 13 can be suppressed, and the illuminance of the test light applied to the solar cell unit 30 can be stabilized.

The evaluation apparatus 10 includes a support 20 that supports the irradiation unit 2, and the support 20 can move along the guide unit 3. Therefore, the structure for moving the irradiation unit 2 up and down can be simplified. . Therefore, the cost can be reduced and the operation can be facilitated.
Furthermore, since the support body 20 can be positioned on the guide part 3 by the fixture 21, the structure for positioning the support body 20 can be simplified. Therefore, the cost can be reduced and the operation can be facilitated.

[Placing part (modification)]
FIG. 11 is a plan view showing a placement portion 1A that is a modification of the placement portion 1 of the evaluation apparatus 10 and its operation. Hereinafter, the same reference numerals are given to the above-described configurations, and the description thereof is omitted.

In the mounting portion 1 </ b> A, the planar position adjusting device 60 is mounted on the upper surface 12 a of the mounting table 12.
The planar position adjustment device 60 includes a table 61, a first adjustment unit 62 that moves the table 61 in the X direction (first direction) in a plane along the upper surface 12 a of the mounting table 12, and the table 61 in the Y direction (first direction). A second adjustment unit 63 that moves in two directions. The Y direction is a direction perpendicular to the X direction in a plane along the upper surface 12 a of the mounting table 12. Note that the first direction and the second direction may not be orthogonal to each other.
The solar cell unit 30 and the support 42 are placed on the upper surface 61a of the table 61.

  According to the evaluation device 10 having the mounting portion 1A, the planar position of the solar cell unit 30 can be adjusted by the planar position adjustment device 60, and thus the solar cell unit 30 can be accurately aligned. Therefore, the reliability in evaluating the characteristics of the solar cell unit 30 can be enhanced.

FIG. 12 is an exploded perspective view showing a container 70 that can accommodate the solar cell unit 30.
The container 70 includes a container main body 71 and a lid 72 that hermetically closes the opening 71 a of the container main body 71. The lid 72 has a lid base 73 (light entrance) made of a material that can transmit test light, and a frame 74 that presses the lid base 73 into the container body 71.

The container main body 71 is connected to an introduction pipe 75 and a lead-out pipe 76, and the internal space of the container 70 can be vacuum degassed using these. Further, the inner space of the container 70 can be replaced with an inert gas (nitrogen gas or the like) using the introduction pipe 75 and the outlet pipe 76.
The container body 71 is provided with a plurality of connection terminals 77 that can be electrically connected to the solar cell unit 30 via wiring, and the solar cell unit 30 in the container 70 and the measurement unit are connected via the connection terminals 77. 7 can be electrically connected.
The container body 71 is provided with a receiving metal 79 that is engaged with an engaging metal 78 provided on the lid 72.

The container 70 can make the internal space into a vacuum or an inert gas atmosphere in a state where the solar cell unit 30 is accommodated.
For this reason, it is possible to prevent the solar battery cell 35 from being deteriorated due to the alteration of the material due to the influence of moisture, oxygen or the like. Therefore, the reliability in the evaluation of the solar cell unit 30 can be further increased.

  The container 70 can be used in place of the solar battery cell 35 in the solar battery unit 30 shown in FIGS. 7 and 8 in a state where the solar battery cell 35 is accommodated and the lid portion 72 is closed.

[Solar Cell Evaluation Apparatus (Second Embodiment)]
FIG. 13: is a front view which shows schematic structure of the evaluation apparatus 80 which is 2nd Embodiment of the evaluation apparatus of this invention. FIG. 14 is an enlarged view showing a part of the evaluation device 80. Hereinafter, the same reference numerals are given to the already described configurations, and the description thereof is omitted.

As shown in FIG. 13 and FIG. 14, the evaluation device 80 includes an apparatus body 80 </ b> A, a measurement unit 7, a power supply unit 8, and a control unit 9.
The apparatus main body 80 </ b> A includes a placement unit 1, an irradiation unit 2, a guide unit 3, a position adjustment mechanism 4 </ b> A, a support base 5, and a light shield 6.
The position adjustment mechanism 4A includes a support 20A that supports the irradiation unit 2, and a suspension mechanism 81 (positioning unit) that positions the support 20A.
The support body 20 </ b> A includes a cylindrical main body portion 22 </ b> A and a disk-shaped flange portion 23 that protrudes radially outward from the upper end portion of the main body portion 22. The support 20A is fixed to the heat dissipation part 14.

The suspension mechanism 81 includes a first pulley 82, a second pulley 83, a third pulley 84, a winding unit 85, and a suspension string 86.
The first pulley 82 and the second pulley 83 are provided on the lower surface of the upper wall portion 17. The third pulley 84 and the winding unit 85 are provided on the light shielding body 6 (side light shielding body 24 b) or the support pillar 16. The winding unit 85 is a reel on which the suspension string 86 is wound.
One end of the hanging strap 86 is fixed to a fixture 87 provided on the upper surface of the heat radiating section 14 of the irradiating section 2. The suspension string 86 reaches the winding portion 85 through the first pulley 82, the second pulley 83, and the third pulley 84.

The winding portion 85 can arbitrarily adjust the pull-out length of the suspension string 86 to one end fixed to the fixture 87 by feeding or winding the suspension string 86.
Since the winding unit 85 can stop rotating at an arbitrary position, the irradiation unit 2 can be positioned at an arbitrary height within a movable range.
Therefore, the distance between the placing unit 1 and the irradiation unit 2 can be adjusted steplessly within the movable range of the irradiation unit 2.

[Solar Cell Evaluation Apparatus (Third Embodiment)]
FIG. 15: is a front view which shows schematic structure of the evaluation apparatus 90 which is 3rd Embodiment of the evaluation apparatus of this invention.
As shown in FIG. 15, the evaluation apparatus 90 includes an apparatus main body 90 </ b> A, a measurement unit 7, a power supply unit 8, and a control unit 9.
The apparatus main body 90 </ b> A includes a placement unit 1, an irradiation unit 2, a guide unit 3, a position adjustment mechanism 4 </ b> B, a support base 5, and a light shield 6.
The position adjustment mechanism 4B includes a support 20A that supports the irradiation unit 2, and a suspension mechanism 91 (positioning unit) that positions the support 20A.

The suspension mechanism 91 includes a drive unit 92 and a suspension string 93.
A motor or the like can be used as the drive unit 92. The drive part 92 is installed on the upper surface of the upper wall part 17, for example.
The drive unit 92 can arbitrarily adjust the pull-out length of the suspension string 96 by feeding or winding the suspension string 93. Since the drive unit 92 can stop feeding or winding at an arbitrary position by the control unit 9, the irradiation unit 2 can be positioned at an arbitrary height in the movable range.
Therefore, the distance between the placing unit 1 and the irradiation unit 2 can be adjusted steplessly within the movable range of the irradiation unit 2.

  The evaluation device 90 can determine the illuminance of the test light applied to the solar cell unit 30 by a simple operation in the control unit 9.

[Solar Cell Evaluation Apparatus (Fourth Embodiment)]
FIG. 16: is a front view which shows a part of evaluation apparatus 100 which is 4th Embodiment of the evaluation apparatus of this invention.
As shown in FIG. 16, the evaluation apparatus 100 includes an apparatus main body 100 </ b> A, a measurement unit 7, a power supply unit 8, and a control unit 9.
The apparatus main body 100 </ b> A includes a placement unit 1, an irradiation unit 2, a position adjustment mechanism 4 </ b> C, a support base 5 </ b> C, and a light shielding body 6.

The support base 5C is different from the support base 5 shown in FIG. 3 and the like in that a support post 16C is provided instead of the support post 16. The support column 16C functions as a guide part.
A slit 101 is formed in the support column 16C along the vertical direction (the length direction of the support column 16C). A plurality of locking recesses 102 are formed on the side edge 101a of the slit 101 at intervals in the vertical direction.
The shaft portion of the fixture 21C can pass through the slit 101. The shaft portion of the fixture 21 </ b> C can be locked to the locking recess 102.

The position adjustment mechanism 4C includes a support 20C that supports the heat radiating unit 14 of the irradiation unit 2, and a fixture 21C (positioning unit) that positions the support 20C on the support column 16C.
The support body 20 </ b> C is movable in the vertical direction along the slit 101.
Since the support 20C is fixed to the heat radiating portion 14, the heat radiating portion 14 is movable in the vertical direction (direction approaching and separating from the placement portion 1) along the slit 101.

Since the position adjustment mechanism 4C can fix the support 20C to the support column 16C at any position within the movable range along the slit 101 by the fixing tool 21C, the irradiation unit 2 can be moved to any height within the movable range. Can be positioned.
Therefore, the distance between the placing unit 1 and the irradiation unit 2 can be adjusted steplessly within the movable range of the irradiation unit 2.

  The fixing tool 21 </ b> C can also position the irradiation unit 2 with respect to the support column 16 </ b> C by locking the shaft portion to the locking recess 102. When performing such positioning, the height of the irradiation unit 2 can be adjusted in multiple stages.

[Solar Cell Evaluation Apparatus (Fifth Embodiment)]
FIG. 17 is a front view schematically showing a part of an evaluation apparatus 110 which is the fifth embodiment of the evaluation apparatus of the present invention. FIG. 18 is a diagram illustrating the structure of the position adjustment mechanism 4D.
As illustrated in FIGS. 17 and 18, the apparatus main body 110 </ b> A of the evaluation apparatus 110 includes a position adjustment mechanism 4 </ b> D and a guide portion 113.
The position adjustment mechanism 4D includes a support mechanism 111. The support mechanism 111 includes a pinion 114 (support) that is a gear that supports the irradiation unit 2, and a drive unit 112 (positioning unit) that rotationally drives the pinion 114. The tooth part 114 a of the pinion 114 meshes with the tooth part 113 a of the guide part 113.
The guide part 113 is provided along the up-down direction. A plurality of tooth portions 113 a are formed on the side surface of the guide portion 113 over the length direction of the guide portion 113.
The support mechanism 111 is fixed to the upper surface of the heat radiating unit 14 and moves up and down integrally with the irradiation unit 2.

  By operating the drive unit 112 by the control unit 9 and rotating the pinion 114, the height position of the pinion 114 can be adjusted according to the rotation position. Therefore, the irradiation unit 2 can be positioned at an arbitrary height within the movable range. Therefore, the distance between the placing unit 1 and the irradiation unit 2 can be adjusted steplessly within the movable range of the irradiation unit 2.

  The evaluation device 110 can determine the illuminance of the test light applied to the solar cell unit 30 by a simple operation.

[Solar Cell Evaluation Apparatus (Sixth Embodiment)]
FIG. 19 is a front view schematically showing a part of an evaluation apparatus 120 which is the sixth embodiment of the evaluation apparatus of the present invention.
As illustrated in FIG. 19, the apparatus main body 120A of the evaluation apparatus 120 includes a position adjustment mechanism 4E.
The position adjustment mechanism 4E includes a support mechanism 121. The support mechanism 121 includes a support body 122 that supports the irradiation unit 2, a drive belt 123 fixed to the support body 122, and a drive unit 124 (positioning unit) that drives the drive belt 123.
The teeth 122 a of the support 122 mesh with the teeth 123 a of the drive belt 123. As a result, the support 122 is fixed to the drive belt 123 and moves up and down integrally with the drive belt 123.
The support 122 is fixed to the upper surface of the heat radiating unit 14 and moves up and down integrally with the irradiation unit 2.
The drive part 124 is installed on the upper surface of the upper wall part 17, for example.
The drive belt 123 is stretched over a drive unit 124 and a pulley 125 installed on the main surface 11a of the bottom wall 11.

  The height position of the support 122 can be adjusted by driving the drive unit 124 by the control unit 9 and rotating the drive belt 123. Therefore, the irradiation unit 2 can be positioned at an arbitrary height within the movable range. Therefore, the distance between the placing unit 1 and the irradiation unit 2 can be adjusted steplessly within the movable range of the irradiation unit 2.

  The evaluation device 120 can determine the illuminance of the test light applied to the solar cell unit 30 by a simple operation.

[Solar Cell Evaluation Apparatus (Seventh Embodiment)]
FIG. 20 is a front view schematically showing a part of an evaluation apparatus 130 which is the seventh embodiment of the evaluation apparatus of the present invention.
As illustrated in FIG. 20, the apparatus main body 130 </ b> A of the evaluation apparatus 130 includes a position adjustment mechanism 4 </ b> F, a guide part 133, and a guide part 135. The position adjustment mechanism 4F includes a support mechanism 131. The support mechanism 131 includes a support 132 that supports the irradiation unit 2 and a drive unit 134 (positioning unit) that drives the guide unit 133 to rotate about the axis. A male screw is formed on the outer peripheral surface of the guide portion 133 over the entire length. The guide parts 133 and 135 are provided along the vertical direction.

The support body 132 has a guide portion insertion hole 132a through which the guide portion 133 is inserted. On the inner peripheral surface of the guide portion insertion hole 132a, a female screw that is screwed to the male screw on the outer peripheral surface of the guide portion 133 is formed. Therefore, when the guide part 133 is driven to rotate about the axis, the support body 132 moves in the length direction of the guide part 133.
The support body 132 is fixed to the heat radiating section 14 and moves up and down integrally with the irradiation section 2.
The drive part 134 is installed on the upper surface of the upper wall part 17, for example.

The guide part 133 can be used, for example, as a guide part provided in the vicinity of two corners located on a diagonal line among the four corners of the bottom wall part 11 and the upper wall part 17. The guide part 135 can be used, for example, as a guide part provided in the vicinity of two corners other than the guide part 133 among the four corners of the bottom wall part 11 and the upper wall part 17.
The heat dissipating part 14 can be configured to be able to move smoothly with respect to the guide part 135 by an axial bearing.

  The height position of the support body 132 can be adjusted by driving the drive unit 134 by the control unit 9 and rotationally driving the guide unit 133 around the axis. Therefore, the irradiation unit 2 can be positioned at an arbitrary height within the movable range. Therefore, the distance between the placing unit 1 and the irradiation unit 2 can be adjusted steplessly within the movable range of the irradiation unit 2.

  The evaluation device 130 can determine the illuminance of the test light applied to the solar cell unit 30 by a simple operation.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.
For example, in the evaluation apparatus 10 according to the first embodiment, the guide rail 51 is formed in a direction perpendicular to the vertical direction. However, the guide rail may be formed in any direction that intersects with the vertical direction. Not exclusively.
Moreover, in the evaluation apparatus 10, the light source 13 without the conversion circuit for converting alternating current into direct current is used, but a light source provided with the conversion circuit may be used.

The number of light sources 13 and the position in plan view are not limited to the examples shown in FIGS. The number of light sources may be 1, or an arbitrary number of 2 or more. The light source is preferably in a position that is n times symmetrical (n is an arbitrary number equal to or greater than 2) and rotationally symmetric with respect to the center of the lower surface of the heat radiating portion. For example, you may employ | adopt the structure (a total of three) which has arrange | positioned each light source to the vertex of the equilateral triangle which makes the center of the lower surface of a thermal radiation part a gravity center. Moreover, the structure which consists only of the 1st light source (for example, 1st light source 13a shown in FIG. 2 and FIG. 5) provided in the center of the lower surface of a thermal radiation part may be sufficient.
In the evaluation apparatus 10 according to the first embodiment, the apparatus main body 10A includes the placement unit 1, the irradiation unit 2, the guide unit 3, the position adjustment mechanism 4, the support base 5, and the light shielding body 6. The apparatus main body may be configured without a support base.

DESCRIPTION OF SYMBOLS 1,1A ... Placement part 2 ... Irradiation part 3 ... Guide part 4, 4A, 4B, 4C ... Position adjustment mechanism 6 ... Shading body 7 ... Measurement part 8 ... Power supply unit 10, 80, 90, 100, 110, 120 ... evaluation device 13, 13a, 13b, 13c, 13d, 13e ... light source 14 ... heat dissipation unit 20, 20A, 20C, 122, 132 ..Support body 21 ... Fixing device (positioning part)
35 ... Solar cell (solar cell)
50 ... Slide moving mechanism (moving mechanism)
81, 91 ... Suspension mechanism (positioning part)
114 ... pinion (support)

Claims (6)

A mounting portion on which a solar cell to be measured is mounted;
An irradiation unit having a light source for irradiating test light to the solar cell placed on the mounting unit, and movable in a direction approaching and separating from the mounting unit;
A guide unit that guides the irradiation unit toward and away from the mounting unit;
A position adjusting mechanism for adjusting the position of the irradiation unit with respect to the mounting unit;
A measurement unit for measuring characteristics of the solar cell irradiated with the test light;
A power supply unit for supplying power to the light source,
The mounting portion includes a moving mechanism that slides the solar cell in a direction intersecting with a direction of approaching and separating from the light source,
The irradiation unit includes a heat dissipation unit capable of transferring heat by heat conduction with the light source,
The solar cell evaluation apparatus, wherein the position adjustment mechanism can position the irradiation unit at an arbitrary position within a movable range of the irradiation unit. The position adjustment mechanism includes a support that supports the irradiation unit,
The solar cell evaluation apparatus according to claim 1, wherein the support is movable along the guide part and can be positioned with respect to the guide part at an arbitrary position within a movable range. The position adjustment mechanism further includes a positioning portion,
The solar cell evaluation apparatus according to claim 2, wherein the positioning unit positions the support relative to the guide unit at an arbitrary position within the movable range.   The solar cell evaluation apparatus according to any one of claims 1 to 3, wherein the heat radiating part is a metal plate provided in contact with the light source.   The said electric power supply part is an evaluation apparatus of the solar cell of any one of Claims 1-4 which has the conversion circuit which converts an alternating current into a direct current.   The solar cell evaluation apparatus according to any one of claims 1 to 5, further comprising a light shielding body that surrounds a space between the placement section and the irradiation section.

Images