CN106159037A - A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment and method thereof - Google Patents

A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment and method thereof Download PDF

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Publication number
CN106159037A
CN106159037A CN201510179496.8A CN201510179496A CN106159037A CN 106159037 A CN106159037 A CN 106159037A CN 201510179496 A CN201510179496 A CN 201510179496A CN 106159037 A CN106159037 A CN 106159037A
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China
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chamber
film
cell substrate
plated film
cadmium sulphide
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CN201510179496.8A
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Inventor
龚立光
钱青
骆焕
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Shanghai Sheng Feng New Energy Technology Co Ltd
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Shanghai Sheng Feng New Energy Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/35Sputtering by application of a magnetic field, e.g. magnetron sputtering
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The present invention proposes a kind of thin-film solar cells cadmium sulphide film layer precipitation equipment and method thereof, what curing diaphragm layer precipitation equipment was installed successively enter sheet chamber, high temperature selenizing/sulfuration chamber, selenizing/sulfuration cooling chamber, plated film cushion chamber, cell substrate plated film chamber, buffering slice chamber, slice intracavity portion are provided with the roller driving cell substrate to move, and complete the cell substrate after selenization process or selenizing/sulfuration process and are being not exposed in air directly be connected cell substrate plated film chamber through plated film cushion chamber;Cell substrate plated film chamber uses magnetron sputtering deposition cadmium sulphide film layer, battery obsorbing layer is made to be not exposed in air before entering plated film chamber, so will not there is oxidation reaction, water vapor absorption or the pollution of other impurity, directly carry out the mode of the deposition of cadmium sulphide film layer, the most contaminated P-N junction can be formed, novel in design, it is a kind of well innovation scheme, has very much marketing prospect.

Description

A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment and method thereof
Technical field
The present invention relates to heliotechnics, particularly relate to a kind of thin-film solar cells cadmium sulfide film deposition Devices and methods therefor.
Background technology
Copper-indium-galliun-selenium film solar cell has that production cost is low, it is little to pollute, does not fails, low light level performance The distinguishing feature such as good, photoelectric transformation efficiency occupies first of various thin-film solar cells, close to crystalline silicon too Sun energy battery, cost is then 1/3rd of crystal silicon cell, is referred to as the novel thin film sun in the world Energy battery, but it is higher to the requirement of technique and preparation condition.
Specifically, copper-indium-galliun-selenium film solar cell is made up of four-level membrane, first on substrate Layer film is hearth electrode, and normally used is molybdenum.The second layer is CIGS thin-film, referred to as absorbed layer. It is free electron that this layer is used to change the photon absorbed, and it is to determine battery conversion efficiency most critical Film layer.Third layer is context layer (i.e. curing diaphragm layer), and the 4th layer is top electrode (TCO).
Curing diaphragm layer is the N-type layer of composition battery P-N junction, and it combines group with absorbed layer (P-type layer) Become the P-N junction of battery.Make the crucial film layer sulfur in indium gallium selenium thin-film solar cells production process The deposition plating of cadmium film layer, general industry circle uses wet method cadmium sulfide deposition plating, or is referred to as changing Learn immersion method plated film, and the shortcoming of wet method cadmium sulfide deposition plating is to produce waste water to cause the dirt to environment Dye is destroyed, thus affects our ecological environment.In order to avoid polluting environment, it is necessary for chemical waste fluid Processing, add the most again production cost, and make the operation of production become complicated, impact produces Progress.
In sum, for problem of the prior art, it is accordingly required in particular to thin-film solar cells cadmium sulphide film layer Precipitation equipment and method thereof, to solve the deficiencies in the prior art.
Summary of the invention
It is an object of the invention to provide thin-film solar cells cadmium sulphide film layer precipitation equipment and method thereof, i.e. Use magnetron sputtering mode to deposit cadmium sulphide film layer, reach not use chemical solution, thus avoid The series of problems that chemical waste fluid processes.
The present invention solves that its technical problem be employed technical scheme comprise that,
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment, curing diaphragm lamination device is installed successively Enter sheet chamber, high temperature selenizing/sulfuration chamber, selenizing/sulfuration cooling chamber, plated film cushion chamber, cell substrate plating Film chamber, buffering slice chamber, slice intracavity portion are provided with the roller driving cell substrate to move, and complete selenium Cell substrate after metallization processes or selenizing/sulfuration process is being not exposed in air through plated film cushion chamber And directly it is connected cell substrate plated film chamber;Cell substrate plated film chamber uses magnetron sputtering deposition cadmium sulphide film layer.
Further, described shielding power supply uses midfrequent AC power supply and the twin negative electrode of plane.
Further, described shielding power supply uses radio-frequency power supply, radio-frequency power supply linking to have RF impedance to regulate Box, negative electrode uses planar cathode.
Further, described shielding power supply uses direct current pulse power source, and negative electrode uses planar cathode.
Further, described enter sheet chamber, high temperature selenizing/sulfuration chamber, selenizing/sulfuration cooling chamber, plated film delay Rush chamber, cell substrate plated film chamber, buffering slice chamber, slice chamber above be provided with separation valve door, plated film Cushion chamber, cell substrate plated film chamber, the top in buffering slice chamber are mounted on vacuum pump, plated film cushion chamber, Cell substrate plated film chamber, buffering slice chamber belong to vacuum cavity.
Further, described cell substrate is horizontal positioned in curing diaphragm lamination device.
Further, described cell substrate is disposed vertically in curing diaphragm lamination device.
Further, described cell substrate is placed with vertical plane in curing diaphragm lamination device, inclines Tiltedly angle is 5 degree of-10 degree.
Present invention also offers a kind of thin-film solar cells cadmium sulphide film deposition method, cell substrate exists Selenizing/sulfuration cooling chamber completes selenization process and sulfuration process and enters plated film cushion chamber, through high temperature selenizing/ After sulfuration chamber, selenizing/sulfuration cooling chamber, cell substrate creates the battery suction that CIGS quaternary crystallizes mutually Receive layer, battery obsorbing layer is not exposed in air, so will not have oxidation reaction, water vapor absorption or other The pollution of impurity, cell substrate enters cell substrate plated film chamber by plated film cushion chamber, i.e. uses magnetic control to spatter Mode of penetrating, to deposit cadmium sulphide film layer, covers last layer cadmium sulphide film layer again, constitutes after battery obsorbing layer The most critical structure of hull cell, thus define the most contaminated P-N junction, cadmium sulphide membrane layer deposits Complete meron enter buffering slice chamber, close cell substrate plated film chamber separation valve door, cell substrate by Buffering slice chamber enters slice chamber.
Further, plated film cushion chamber and cell substrate plated film chamber are vacuum state when coating process, vacuum Pressure is 1mTorr to 20mTorr, and selenizing/sulfuration cooling chamber that plated film cushion chamber connects can be vacuum Cavity, it is also possible to for there being the positive air pressure of gas shield, i.e. 1 atmospheric pressure or the gas more than 1 atmospheric pressure Body protection cavity, protective gas uses nitrogen.
It is an advantage of the current invention that this product structure is simple, make through this road technique of high temperature selenizing/vulcanize it After create the battery obsorbing layer that CIGS quaternary crystallizes mutually, make battery obsorbing layer enter plated film chamber it Before be not exposed in air, so will not have the pollution of oxidation reaction, water vapor absorption or other impurity, directly Tap into the mode of the deposition of row cadmium sulphide film layer, the most contaminated P-N junction can be formed, novel in design, be A kind of well innovation scheme, has marketing prospect very much.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention proposes;
In figure, 100-enters sheet chamber, 110-high temperature selenizing/sulfuration chamber, 120-selenizing/sulfuration cooling chamber, 130- Plated film cushion chamber, 140-cell substrate plated film chamber, 150-buffers slice chamber, 160-slice chamber, 170- Separation valve door, 180-cell substrate, 190-roller, 210-vacuum pump, 220-midfrequent AC power supply, 230- The twin negative electrode of plane, 240-radio-frequency power supply, 250-RF impedance damper box, 260-planar cathode.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be readily apparent from Solve, below in conjunction with diagram and specific embodiment, the present invention is expanded on further.
As it is shown in figure 1, a kind of thin-film solar cells cadmium sulphide film layer precipitation equipment that the present invention proposes, What curing diaphragm lamination device was installed successively enters sheet chamber 100, high temperature selenizing/sulfuration chamber 110, selenizing/sulfuration Cooling chamber 120, plated film cushion chamber 130, cell substrate plated film chamber 140, buffering slice chamber 150, slice Chamber 160 is internal is provided with the roller 190 driving cell substrate to move, and completes selenization process or selenizing/sulfur Cell substrate after metallization processes is being not exposed in air to be directly connected electricity through plated film cushion chamber 130 Substrate coating chamber, pond 140;Cell substrate plated film chamber 140 uses magnetron sputtering deposition cadmium sulphide film layer.
Shielding power supply uses midfrequent AC power supply and the twin negative electrode of plane 230 in the first embodiment.
Shielding power supply uses radio-frequency power supply 240, radio-frequency power supply 240 in a second embodiment of the present invention Linking has RF impedance damper box 250, and negative electrode uses planar cathode 260.
In third embodiment of the invention, shielding power supply uses direct current pulse power source, and negative electrode uses planar cathode.
Cell substrate lies in a horizontal plane in can be with horizontal positioned in each chamber of curing diaphragm lamination device, it is possible to To be disposed vertically, it is also possible to have certain angle to place with vertical, the angular range of angle is 5 Degree-10 degree, can determine according to actual requirement.
It addition, enter sheet chamber 100, high temperature selenizing/sulfuration chamber 110, selenizing/sulfuration cooling chamber 120, plated film Cushion chamber 130, cell substrate plated film chamber 140, buffering are respectively provided with above slice chamber 150, slice chamber 160 There is separation valve door 170.Plated film cushion chamber 130, cell substrate plated film chamber 140, buffering slice chamber 150 Top is mounted on vacuum pump 210, plated film cushion chamber 130, cell substrate plated film chamber 140, buffering slice Chamber 150 belongs to vacuum cavity.
Copper-indium-galliun-selenium film solar cell can use soda-lime glass, battery thin film be formed with the first step, Deposition molybdenum film forms hearth electrode;Second step, deposition CIGS forms preformed layer;3rd step, at selenium CIGS crystal is generated in change/vulcanization reaction cavity;4th step, forms cadmium sulphide membrane;5th step, Form summit very thin films.The present invention is used in above third step and the 4th step, i.e. selenizing/vulcanization reaction And after generating CIGS crystal, cell substrates is not exposed in air be directly entered cadmium sulphide membrane Depositing operation.This two step completes the critical process that in copper indium gallium selenide cell, P-N junction is formed.
Cell substrate initially enters into sheet chamber 100, subsequently into high temperature selenizing/sulfuration chamber 110, at high temperature Under (450~600 DEG C) and selenium steam atmosphere defines CIGS quaternary phase crystal.Then enter selenium Changing/sulfuration cooling chamber 120, temperature is down to room temperature, or less than less than 200 DEG C.This intracavity or have gas to protect Protecting, such as nitrogen, air pressure is at 1 atm higher, or at vacuum state, vacuum degree control is being less than Below 200mTorr.In a word, in selenizing/sulfuration cooling chamber 120 content of oxygen control 10PPM or with Under.After temperature reaches controlling value, opening separation valve door, substrate enters plated film cushion chamber 130;Very Under the effect of empty pump 210, after the vacuum of plated film cushion chamber 130 reaches plated film vacuum, plated film buffers The separation valve door in chamber 130 is opened, and substrate enters cell substrate plated film chamber 140, starts sputter coating.Electricity The vacuum pressure in substrate coating chamber, pond 140 can be controlled between 1mTorr to 20mTorr.Shielding power supply can Use midfrequent AC power supply, coordinate the twin negative electrode of plane;May be used without radio-frequency power supply, or use pulse straight Stream power supply.Negative electrode uses planar cathode.Battery obsorbing layer covers last layer cadmium sulphide film layer, constitutes thin The most critical structure of film battery, thus define the most contaminated P-N junction, cadmium sulphide membrane layer has deposited Becoming meron to enter buffering slice chamber 150, cell substrate enters slice chamber 160 by buffering slice chamber.
This inventive structure is simple, makes to create CIGS four after high temperature selenizing/vulcanize this road technique The battery obsorbing layer that unit crystallizes mutually, makes battery obsorbing layer be not exposed in air, and oxidation so will not be had anti- Should, water vapor absorption or the pollution of other impurity, directly carry out the deposition of cadmium sulphide film layer, formed and do not get dirty The P-N junction of dye, novel in design, it is a kind of well innovation scheme, has very much marketing prospect.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.One's own profession Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention originally Invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention In.Claimed scope is defined by appending claims and equivalent thereof.

Claims (10)

1. a thin-film solar cells cadmium sulphide film layer precipitation equipment, curing diaphragm layer precipitation equipment is successively That installs enters sheet chamber, high temperature selenizing/sulfuration chamber, selenizing/sulfuration cooling chamber, plated film cushion chamber, battery base Sheet plated film chamber, buffering slice chamber, slice intracavity portion are provided with the roller driving cell substrate to move, its It is characterised by: complete the cell substrate after selenization process or selenizing/sulfuration process through plated film cushion chamber It is not exposed in air directly be connected cell substrate plated film chamber;Cell substrate plated film chamber uses magnetron sputtering Deposition cadmium sulphide film layer.
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment the most according to claim 1, its It is characterised by: described shielding power supply uses midfrequent AC power supply and the twin negative electrode of plane.
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment the most according to claim 1, its It is characterised by: described shielding power supply uses radio-frequency power supply, radio-frequency power supply linking to have RF impedance damper box, Negative electrode uses planar cathode.
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment the most according to claim 1, its Being characterised by: described shielding power supply uses direct current pulse power source, negative electrode uses planar cathode.
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment the most according to claim 1, its It is characterised by: described enters sheet chamber, high temperature selenizing/sulfuration chamber, selenizing/sulfuration cooling chamber, plated film buffering Chamber, cell substrate plated film chamber, buffering are provided with separation valve door above slice chamber, slice chamber, and plated film delays Rush chamber, cell substrate plated film chamber, the top in buffering slice chamber are mounted on vacuum pump, plated film cushion chamber, Cell substrate plated film chamber, buffering slice chamber belong to vacuum cavity.
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment the most according to claim 1, its It is characterised by: described cell substrate is horizontal positioned in curing diaphragm layer precipitation equipment.
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment the most according to claim 1, its It is characterised by: described cell substrate is disposed vertically in curing diaphragm layer precipitation equipment.
A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment the most according to claim 1, its It is characterised by: described cell substrate is placed with vertical plane in curing diaphragm lamination device, tilts Angle is 5 degree of-10 degree.
9. a thin-film solar cells cadmium sulphide film deposition method, it is characterised in that: cell substrate exists Selenizing/sulfuration cooling chamber completes selenization process and sulfuration process and enters plated film cushion chamber, through high temperature selenizing/ After sulfuration chamber, selenizing/sulfuration cooling chamber, cell substrate creates the battery suction that CIGS quaternary crystallizes mutually Receive layer, battery obsorbing layer is not exposed in air, so will not have oxidation reaction, water vapor absorption or other The pollution of impurity, cell substrate enters cell substrate plated film chamber by plated film cushion chamber, i.e. uses magnetic control to spatter Mode of penetrating, to deposit cadmium sulphide film layer, covers last layer cadmium sulphide film layer again, constitutes after battery obsorbing layer The most critical structure of hull cell, thus define the most contaminated P-N junction, cadmium sulphide membrane layer deposits Complete meron enter buffering slice chamber, close cell substrate plated film chamber separation valve door, cell substrate by Buffering slice chamber enters slice chamber.
A kind of thin-film solar cells cadmium sulphide film deposition method the most according to claim 9, its It is characterised by: plated film cushion chamber and cell substrate plated film chamber are vacuum state when coating process, Vacuum Pressure Power is 1mTorr to 20mTorr, and selenizing/sulfuration cooling chamber that plated film cushion chamber connects can be vacuum chamber Body, it is also possible to for there being the positive air pressure of gas shield, i.e. 1 atmospheric pressure or the gas more than 1 atmospheric pressure Protection cavity, protective gas uses nitrogen.
CN201510179496.8A 2015-04-15 2015-04-15 A kind of thin-film solar cells cadmium sulphide film layer precipitation equipment and method thereof Pending CN106159037A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109913810A (en) * 2017-12-13 2019-06-21 湘潭宏大真空技术股份有限公司 Vacuum magnetron sputtering coating film production line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109913810A (en) * 2017-12-13 2019-06-21 湘潭宏大真空技术股份有限公司 Vacuum magnetron sputtering coating film production line

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Application publication date: 20161123