TWI545825B - Photoelectric element with a glass phosphor conductive substrate and the glass phosphor conductive substrate thereof - Google Patents

Description

Photoelectric element having glass phosphor conductive substrate and glass phosphor conductive substrate

The present invention relates to a photovoltaic element, particularly an organic semiconductor, and the substrate of the photovoltaic element is made of a glass phosphor.

In the conventional organic light-emitting materials, since the light-emitting spectrum is extremely narrow, it is conventionally impossible to use only a single material as a light source of white light, and conventionally, a photovoltaic element for emitting white light is mostly a multi-doped light-emitting layer or a multiple light-emitting layer. Component structure.

For example, as shown in FIG. 1 , a schematic diagram of a light-emitting element using a multi-doped light-emitting layer is formed on a glass substrate 11 and a first electrode 12 is formed on the first substrate 12 . a light-emitting layer 13 is formed on the light-emitting layer 13 and has a second electrode 14 therein. The light-emitting layer 13 has a plurality of colors of dopants, so that the light-emitting layer 13 can exhibit different mixed colors (for example, red, The green and blue phases are mixed to form a white color, or the orange and blue phases are mixed to form a white color. The disadvantage of the light-emitting element is that the preparation process is complicated, mainly because the dopants doped in the light-emitting layer 13 are too many and heterogeneous, and the proportional control of the concentration of each dopant is complicated, so that the color of the white light is present, stable Qualitative and uniformity will be poor and difficult to predict.

Or, as shown in FIG. 2 , it is a schematic diagram of a conventional light-emitting element using multiple light-emitting layers. A first electrode 12 is formed on a glass substrate 11 , and a light is formed on the first electrode 12 . a layer 13 is formed on the luminescent layer 13 and a second electrode 14 is formed. The luminescent layer 13 is formed by combining at least two sub-layers 131 and 132, and each of the sub-layers 131 and 132 emits light of different colors. By blending different color dopants into different sub-layers 131, 132, respectively, the light emitted by each sub-layer 131, 132 is mixed to achieve the target color (for example, the two sub-layers respectively emit blue and yellow light And mixed into white light). A disadvantage of the illuminating element is that the preparation process is complicated, mainly because the photo-electric element is layered by multiple sub-layers, which is required to be processed in multiple steps, and since the luminescent layer 13 is composed of a plurality of sub-layers 131, 132 It is composed and therefore requires a higher operating voltage.

On the other hand, the absorption band of a general organic material is rather limited, and therefore, if a photovoltaic element (photovoltaic element) capable of efficiently converting light energy into electric energy is produced, development of an absorption layer of the photovoltaic element is quite difficult.

In view of this, the present inventors have conceived and further studied, and finally invented a photovoltaic element having a glass phosphor conductive substrate and a glass phosphor conductive substrate.

The invention provides a photovoltaic element with a glass phosphor conductive substrate and a glass phosphor conductive substrate, the main purpose of which is to apply the glass firefly The light-conducting substrate can effectively reduce the complexity of the fabrication of the photovoltaic element and reduce the threshold for the characteristics of the organic material; and the glass-emitting substrate can also be applied to the photovoltaic element and improve the efficiency of the photovoltaic element.

To achieve the foregoing objective, the present invention provides a photovoltaic element having a glass phosphor conductive substrate, comprising: a glass phosphor substrate made of a glass phosphor formed by sintering a glass material and a phosphor powder. The glass phosphor substrate is light transmissive, the glass phosphor substrate has a first surface and a second surface; a first conductive layer is formed on the first surface of the glass phosphor substrate The first conductive layer is transparent; an active layer is formed on the first conductive layer, the first conductive layer is sandwiched between the glass phosphor substrate and the active layer; and a second A conductive layer is formed on the active layer such that the active layer is sandwiched between the first conductive layer and the second conductive layer.

In order to achieve the above objective, the present invention provides a glass phosphor conductive substrate, comprising: a glass phosphor substrate made of a glass phosphor formed by sintering a glass material and a phosphor powder, the glass firefly. The light-emitting substrate is transparent; a first conductive layer is bonded to the glass phosphor substrate, and the first conductive layer is a transparent conductive film (ITO).

The invention utilizes the provided photovoltaic element with a glass phosphor conductive substrate and a glass phosphor conductive substrate, and can obtain the effect that the glass phosphor conductive substrate can be simplified by applying the photoelectric element of the organic illumination. The structure of the organic light-emitting element, and only a single-color organic light-emitting layer is required to match the complementary color of the glass phosphor conductive substrate to realize white light illumination, compared to The conventional organic white light-emitting element has the following advantages: 1. The structure is simple and easy to prepare; 2. It has only one light-emitting layer, so it has a low operating voltage. If the glass phosphor conductive substrate is applied to the photovoltaic element, the phosphor powder in the glass phosphor substrate can be used for color conversion, and excitation light of different wavelengths can be provided to the active layer, thereby effectively improving the efficiency of the photovoltaic element. .

The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

[study]

11‧‧‧ glass substrate

12‧‧‧First electrode

13‧‧‧Lighting layer

131‧‧‧ sub-layer

132‧‧‧ sub-layer

14‧‧‧second electrode

〔this invention〕

2‧‧‧Glass phosphor substrate

201‧‧‧ first side

202‧‧‧ second side

20‧‧‧ glass phosphor

21‧‧‧ glass material

22‧‧‧Fluorescent powder

30‧‧‧First conductive layer

40‧‧‧ active layer

40B‧‧‧Active layer

50‧‧‧Second conductive layer

81‧‧‧monochromatic light

82‧‧‧Excited light

83‧‧‧Light

Fig. 1 is a schematic view showing a light-emitting element using a multi-doped light-emitting layer.

Fig. 2 is a schematic view showing a conventional light-emitting element using multiple light-emitting layers.

Figure 3 is a schematic view of a glass phosphor conductive substrate of the present invention.

Figure 4 is a schematic illustration of an embodiment of the invention.

The state reference diagram in the fifth diagram of Fig. 5 is used.

Figure 6 is a schematic view of another embodiment of the present invention.

The state reference diagram used in Fig. 7 and Fig. 6 is used.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [Simplified Description of the Drawings] for details: A preferred embodiment of the glass phosphor conductive substrate of the present invention, as shown in FIG. 3, comprises: a glass phosphor substrate 2 and a first conductive layer 30, wherein the glass phosphor substrate 2 is made of glass. 21 and a glass phosphor 20 formed by sintering the phosphor powder 22, the glass phosphor substrate 2 is permeable to light, and the glass phosphor substrate 2 has a first surface 201 and a first surface On both sides 202, the phosphor powder 22 is selected from the group consisting of yttrium aluminum garnet (YAG), nitride (Nitride), silicate (silicate), aluminate (Aluminate) and oxynitride (Oxynitride). The group of glass materials 21 is selected from the group consisting of a citrate system, a phosphate system, a borate system, and a citrate system. The first conductive layer 30 is bonded to the glass phosphor substrate 20, and the first conductive layer 30 is a transparent conductive film (ITO).

The above description is the main components of the embodiment of the present invention and their configuration description. As for the use mode and function of the embodiment of the present invention, as shown in FIG. 4, the above-mentioned glass phosphor conductive substrate is applied as a photovoltaic element for organic illumination, and the photoelectric element includes: a glass phosphor. a substrate 2, a first conductive layer 30, an active layer 40, and a second conductive layer 50, wherein the glass phosphor substrate 2 is formed by sintering a glass material 21 and a phosphor powder 22 The light-emitting body 20 is made of light-transmitting, and the glass phosphor substrate 2 has a first surface 201 and a second surface 202 opposite to each other. The phosphor powder 22 is selected from the group consisting of Aluminum garnet a group of (YAG), nitride (Nitride), silicate (silicate), aluminate (Aluminate), and oxynitride (Oxynitride), and the glass material 21 is selected from In the group consisting of an acid salt system, a phosphate system, a borate system, and a citrate system, the phosphor powder 22 is excited by light to generate an excitation light.

The first conductive layer 30 is formed on the first surface 201 of the glass phosphor substrate 2, the first conductive layer 30 is transparent, and the first conductive layer 30 is a transparent conductive film (ITO); The active layer 40 is formed on the first conductive layer 30, and the first conductive layer 30 is interposed between the glass phosphor substrate 2 and the active layer 40. The active layer 40 is configured to emit monochromatic light. In the illuminating layer, the wavelength of the monochromatic light is different from the wavelength of the excitation light emitted by the luminescent powder, and the light emitted by the active layer 40 is transmitted from the glass phosphor substrate via the first conductive layer 30. The first surface 201 of the second surface 201 enters the glass phosphor substrate 2, and after color conversion and scattering in the glass phosphor substrate 2, is emitted from the second surface 202 of the glass phosphor substrate 2; the second conductive The layer 50 is formed on the active layer 40, and the active layer 40 is sandwiched between the first conductive layer 30 and the second conductive layer 40. The second conductive layer 50 is a metal anode.

Wherein, the color conversion described above means that the phosphor powder 22 in the glass phosphor substrate 2 is excited by the monochromatic light emitted by the active layer 40, and emits another excitation light, whereby the monochromatic light and the Excitation light can be mixed into another Color: The aforementioned scattering refers to a scattering phenomenon caused by the interaction of the monochromatic light emitted by the active layer 40 with the fluorescent powder 22 in the glass phosphor substrate 2, thereby causing monochromatic light to pass through the glass. After the phosphor substrate 2, it is more uniform.

Referring to FIG. 5 , when the active layer emits the monochromatic light 81 , the first conductive layer 30 enters the glass phosphor substrate 2 from the first surface 201 of the glass phosphor substrate 2 . And exciting the phosphor powder 22 in the glass phosphor substrate 2, and the phosphor powder 22 emits the excitation light 82, and the monochromatic light 81 also interacts with the phosphor powder 22 on the glass phosphor substrate 2. The light is scattered by the action, and therefore, the monochromatic light 81 and the excitation light 82 are uniformly mixed to emit a uniform light after color mixing. Therefore, the present invention effectively simplifies the structure of the organic light emitting device, and only needs a single active layer 40 to illuminate the complementary color of the glass phosphor substrate 2 to realize white light illumination, and has a simple structure compared with the conventional organic white light emitting device. The preparation is easy, and since it has only one light-emitting layer 40, it has a low operating voltage; and the monochromatic light 81 and the excitation light 82 are mixed with the phosphor powder 22 in the glass phosphor substrate 2 to cause scattering. Therefore, a uniform light can be emitted.

In addition, the glass phosphor substrate of the present invention can be applied to a photovoltaic element as well as a photovoltaic element. For example, as shown in FIG. 6, the photovoltaic element includes: a glass phosphor substrate. 2. A first conductive layer 30, an active layer 40, and a second conductive layer 50, wherein the glass phosphor substrate 2 is formed by sintering a glass material 21 and a phosphor powder 22 Made of body 20, the glass is fluorescent The body substrate 2 is permeable to light, and the glass phosphor substrate 2 has a first surface 201 and a second surface 202. The phosphor powder 22 is selected from the group consisting of yttrium aluminum garnet (YAG) and nitride (Nitride). a group of phosphoric materials of silicate, aluminate, and oxynitride, and the glass material 21 is selected from the group consisting of a citrate system, a phosphate system, In the group consisting of a borate system and a citrate system, the phosphor powder 22 is excited by light to generate an excitation light.

The first conductive layer 30 is formed on the first surface 201 of the glass phosphor substrate 2, the first conductive layer 30 is transparent, and the first conductive layer 30 is a transparent conductive film (ITO); The active layer 40B is formed on the first conductive layer 30, and the first conductive layer 30 is sandwiched between the glass phosphor substrate 2 and the active layer 40. The active layer 40B is an absorbing layer, and The light energy is converted into electric energy, and the light enters the glass phosphor substrate 2 from the second surface 202 of the glass phosphor substrate 2, and after color conversion and scattering in the glass phosphor substrate 2, the glass is converted from the glass. The first surface 201 of the phosphor substrate 2 is emitted and enters the active layer 40 via the first conductive layer 30. The second conductive layer 50 is formed on the active layer 40, and the active layer 40 is interposed. Between the first conductive layer 30 and the second conductive layer 40, the second conductive layer 50 is a metal anode.

Wherein, the color conversion described above means that the phosphor powder 22 in the glass phosphor substrate 2 is excited by light to emit another excitation light; The scattering refers to a scattering phenomenon caused by the interaction of the light with the fluorescent powder 22 in the glass phosphor substrate 2, whereby the light is more uniform after passing through the glass phosphor substrate 2.

Referring to FIG. 7 , one of the external light rays enters the glass phosphor substrate 2 from the second surface 202 of the glass phosphor substrate 2 and excites the phosphor powder in the glass phosphor substrate 2 . 22, the phosphor powder 22 emits the excitation light 82, and the light 83 is also scattered by the glass phosphor substrate 2 and the phosphor powder 22, and therefore, the light 83 and the excitation light 82 are both The first surface 201 of the glass phosphor substrate 2 is uniformly emitted, and enters the active layer 40 via the first conductive layer 30; thereby, the light 83 passes through the glass phosphor substrate 2 of the present invention. Exciting the phosphor powder 22 in the glass phosphor substrate 2 to emit excitation light, thereby providing light rays 83 and excitation light 82 of mutually different wavelengths to the active layer, thereby effectively improving the efficiency of the photovoltaic element, and the light 83 and The excitation light 82 is mixed with the phosphor powder 22 in the glass phosphor substrate 2, so that a uniform light can be emitted to the active layer 40B, and the efficiency of the photovoltaic element can be improved.

From the above, it is known that the present invention truly conforms to "industrial availability," "novelty," and "progressiveness", and submits an invention patent application in accordance with the law, praying for review and early granting of a patent, and it is truly sensible.

2‧‧‧Glass phosphor substrate

201‧‧‧ first side

202‧‧‧ second side

20‧‧‧ glass phosphor

21‧‧‧ glass material

22‧‧‧Fluorescent powder

30‧‧‧First conductive layer

40‧‧‧ active layer

50‧‧‧Second conductive layer

Claims (6)

A photovoltaic element having a glass phosphor conductive substrate, comprising: a glass phosphor substrate made of a glass phosphor formed by sintering a glass material and a phosphor powder, the glass phosphor substrate The glass phosphor substrate has a first surface and a second surface; a first conductive layer is formed on the first surface of the glass phosphor substrate, and the first conductive layer is An active layer is formed on the first conductive layer such that the first conductive layer is sandwiched between the glass phosphor substrate and the active layer, and the active layer emits a monochromatic light. a light-emitting layer, the wavelength of the monochromatic light is different from the wavelength of the excitation light emitted by the phosphor powder; and a second conductive layer is formed on the active layer, so that the active layer is sandwiched between the first conductive layer Between the layer and the second conductive layer. The photovoltaic element having a glass phosphor conductive substrate according to claim 1, wherein the phosphor powder is selected from the group consisting of yttrium aluminum garnet (YAG), nitride (Nitride), and silicate (Silicate). a group of phosphorescent materials of aluminate and oxynitride, and the glass material is selected from the group consisting of a citrate system, a phosphate system, a borate system, and a citrate system. The group of people who make up. The photovoltaic element having a glass phosphor conductive substrate according to claim 1, wherein the light emitted by the active layer enters from the first surface of the glass phosphor substrate via the first conductive layer. The glass phosphor substrate is subjected to color conversion and scattering in the glass phosphor substrate, and then emitted from the second surface of the glass phosphor substrate. The photovoltaic element having a glass phosphor conductive substrate according to claim 1, wherein the first conductive layer is a transparent conductive film (ITO). A glass phosphor conductive substrate is suitable for forming an active layer. The glass phosphor conductive substrate comprises: a glass phosphor substrate, which is formed by a glass material and a phosphor powder formed by sintering a phosphor powder. The glass phosphor substrate is transparent; a first conductive layer is bonded to the glass phosphor substrate, and the first conductive layer is made of a transparent conductive film (ITO); a layer formed on the first conductive layer, the first conductive layer being sandwiched between the glass phosphor substrate and the active layer, wherein the active layer is a light emitting layer emitting a monochromatic light, the single layer The wavelength of the colored light is different from the wavelength of the excitation light emitted by the fluorescent powder. The glass phosphor conductive substrate according to claim 5, wherein the phosphor powder is selected from the group consisting of yttrium aluminum garnet (YAG), nitride (Nitride), silicate (silicate), and aluminate. a group of phosphorescent materials (Aluminate) and oxynitride (Oxynitride) selected from the group consisting of a citrate system, a phosphate system, a borate system, and a citrate system. By.