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Photovoltaic module and fabrication method thereof

A photovoltaic module and photovoltaic material technology, applied in the field of optical materials, can solve the problems of limited current output capacity, poor ultraviolet stability, and low conversion efficiency, and achieve the effects of increasing current output capacity, weakening aging effect, and improving conversion rate

Inactive Publication Date: 2018-09-07
ZHIJING NANOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the conversion efficiency of existing photovoltaic cells to sunlight in the ultraviolet and blue spectral ranges is low, the current output capability is limited, and the ultraviolet stability is poor

Method used

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  • Photovoltaic module and fabrication method thereof
  • Photovoltaic module and fabrication method thereof
  • Photovoltaic module and fabrication method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] In order to solve the above-mentioned technical problems existing in the prior art, an embodiment of the present invention provides a method for manufacturing a photovoltaic module.

[0049] figure 1 A schematic flow chart of a method for preparing a photovoltaic module according to Embodiment 1 of the present invention is shown.

[0050] refer to figure 1 , the preparation method of the photovoltaic module in this embodiment includes the following steps.

[0051] Step S101, configuring a precursor solution.

[0052] Step S102 , depositing the precursor solution on the surface of the specified photovoltaic material layer to form the perovskite-based spectrum down-conversion film 5 .

[0053]Specifically, the configured precursor solution is evenly coated on the surface of the specified photovoltaic material layer by any one of spin coating method, casting method, blade coating method, dip coating method or spray coating method. Then, dry the precursor solution coate...

Embodiment 2

[0077] In order to solve the above-mentioned technical problems existing in the prior art, an embodiment of the present invention further provides a photovoltaic module.

[0078] Figure 7 A schematic structural diagram of a photovoltaic module according to Embodiment 2 of the present invention is shown.

[0079] refer to Figure 7 The photovoltaic module of this embodiment includes a backplane 1 , a first sealing film 2 , a photovoltaic cell unit 3 , a second sealing film 4 , a perovskite-based spectral down-conversion film 5 and a glass cover 6 arranged in sequence from top to bottom.

[0080] Specifically, the back sheet 1 can be selected from any one of Tedlar back sheet (polyvinyl fluoride PVF), fluorine-containing back sheet, and PET back sheet; the first sealing film 2 and the second sealing film 4 can be selected from ethylene-vinyl acetate copolymer Any one of poly(EVA), ethylene-octene copolymer (POE), polyvinyl butyral (PVB), polyurethane (PU) film; the battery un...

Embodiment 3

[0083] In order to solve the above-mentioned technical problems existing in the prior art, an embodiment of the present invention further provides a photovoltaic module.

[0084] Figure 8 A schematic structural diagram of a photovoltaic module according to Embodiment 3 of the present invention is shown.

[0085] refer to Figure 8 The photovoltaic module of this embodiment includes a backplane 1 , a first sealing film 2 , a photovoltaic cell unit 3 , a perovskite-based spectrum down-conversion film 5 , a second sealing film 4 and a glass cover 6 arranged in sequence from top to bottom.

[0086] The details of the above photovoltaic material layers are the same as those of the photovoltaic material layers in the real-time example 2 photovoltaic module, and will not be repeated here. At the same time, the beneficial effect of applying the photovoltaic module of this embodiment is the same as that of the real-time example 2 photovoltaic module, and will not be repeated here. ...

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Abstract

The invention discloses a fabrication method of a photovoltaic module. The fabrication method comprises the steps of preparing a precursor solution; depositing the precursor solution on a surface of adesignated photovoltaic material layer to form a perovskite-based spectrum down-conversion film; sequentially laying all photovoltaic material layers; and performing high-temperature vacuum lamination on the photovoltaic material layers which are sequentially laid to form the photovoltaic module. According to the fabrication method of the photovoltaic module, the perovskite-based spectrum down-conversion film is compatible with a traditional photovoltaic cell package process, the perovskite-based spectrum down-conversion film is used as a spectrum down converter, ultraviolet / blue-light wavelength in solar spectrum is converted to wavelength within a high-response wavelength range of the solar cell, and the sunlight conversion efficiency of the photovoltaic module is improved.

Description

technical field [0001] The invention belongs to the technical field of optical materials, in particular to a photovoltaic module with a perovskite-based spectrum down-conversion film and a preparation method thereof. Background technique [0002] With the rapid economic growth, energy consumption is increasing, and energy supply is also very tight. As a product that directly utilizes solar energy, photovoltaic cells are widely favored by people. However, the existing photovoltaic cells generally have low absorption efficiency for sunlight, and cannot absorb light of different wavelengths in the solar spectrum well. [0003] Existing commonly used photovoltaic cells include silicon-based photovoltaic cells, cadmium telluride (CdTe) and copper indium gallium selenide (CIGS) thin film cells, and perovskite photovoltaic cells. The light conversion efficiency of silicon-based photovoltaic cells in the ultraviolet and blue spectral ranges is low. It can only generate effective ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K71/12H10K30/10H10K30/88Y02E10/549
Inventor 钟海政孟令海柏泽龙
Owner ZHIJING NANOTECH CO LTD
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