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Preparation method for P-N junction flexible solar cell

A flexible solar cell, P-N technology, applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems of small adjustable range of shape and heavy weight, and achieve the effect of improving efficiency, life and stability, and reducing costs

Inactive Publication Date: 2013-07-03
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, traditional solar cells mostly use rigid substrates. Rigid substrates are necessary for high-power solar cells, but their weight is relatively large and their shape can be adjusted to a small extent.

Method used

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  • Preparation method for P-N junction flexible solar cell
  • Preparation method for P-N junction flexible solar cell
  • Preparation method for P-N junction flexible solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add indium chloride tetrahydrate, cuprous chloride and thiourea into the alcohol solution and disperse evenly; then react at 120~180°C, and finally centrifuge, wash and dry in turn to obtain nano-sized CuInS 2 ; wherein the molar ratio of indium chloride tetrahydrate: cuprous chloride: thiourea is 1:1:2~1:2:6, and the reaction time is 6~12 hours. As a preferred solution, the molar ratio of indium chloride tetrahydrate: cuprous chloride: thiourea is 1:1:2, and the reaction time is 8±1 hours.

[0033] (1) Weigh CuCl and InCl separately 3 .4H 2 O, thiourea 0.099, 0.293, 0.304g, uniformly dispersed in 40ml alcohol, then transferred to 50ml polytetrafluoroethylene lined stainless steel autoclave, heated to 150 ° C, reacted for 8 hours, and cooled with the furnace after the reaction .

[0034] (2) The product was centrifuged, washed with distilled water, and then dried at 60°C for 6-24 hours to obtain black CuInS 2 solid powder. In CuCl, InCl 3 .4H 2 O, under the same ...

Embodiment 2

[0043] The steps are basically the same as in Example 1, except that PVDF is replaced by PVDF-HFP.

[0044] The electrode product that makes is basically consistent with embodiment 1, and the scanning electron microscope figure of photoelectrode is as Figure 5 As shown, the porosity of the electrode is relatively large. Figure 7 is CuInS 2 I-V curves when combined with PVDF-HFP as a photoelectrode.

Embodiment 3

[0046] The steps are basically the same as in Example 1, the difference is that the CuInS 2 Disperse in PEDOT:PSS, the temperature in step (5) is 140°C, and the holding time is 10min.

[0047] The scanning electron microscope image of the photoelectrode is shown in Figure 6 shown. Figure 8 is CuInS 2 I-V curves when combining PEDOT:PSS as a photoelectrode.

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Abstract

The invention relates to a preparation method for a P-N junction flexible solar cell, which comprises the following steps of: a, placing CuCl2.2H2O, InCl3.4H2O and CH4N2S sulfourea in alcohol, transferring to a high pressure kettle, reacting for 6-12h at 120-180 degrees centigrade, and washing and drying the product CuInS2, wherein molar ratio of indium chloride tetrahydrate to cuprous chloride to sulfourea is 1 : 1 : 2 to 1 : 2 : 6; b, preparing P25 into factice, and uniformly preparing on a metal wire mesh by using a drawing machine; and sintering at 100-500 degrees centigrade for 80-180min; c, uniformly dispersing the CuInS2 in PVDF (Polyvinylidene Fluoride) or PVDF-HFP (Polyvinylidene Fluoride Hexafluoropropylene) pyrrolidone solution; d, uniformly dispersing the product obtained in the step c on the metal wire mesh obtained in the step b, and drying at 90-140 degrees centigrade to obtain a photoelectrode. The method has simple technology and low cost, and can prepare the large area solar cell.

Description

technical field [0001] The invention relates to a preparation method of a novel P-N junction flexible solar cell, which belongs to the field of new technologies. Background technique [0002] With the increasingly urgent energy crisis and increasingly serious environmental pollution problems, clean and renewable energy has attracted the attention and favor of governments of all countries. Among them, solar energy, which does not change the energy balance of the earth's fuel, has the advantages of inexhaustibility and easy realization of miniaturization, and is especially valued by people. Solar energy utilization will also be one of the most decisive technical fields in economic development in the new century. one. The pursuit of low cost, high photoelectric conversion efficiency, and long life is the goal pursued by the field of solar cells. [0003] Copper indium sulfur-based thin film solar cells are known as one of the most promising solar cells, mainly because of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48
CPCY02E10/549
Inventor 于涛刘云红邹志刚张继远包春雄薛国刚管杰黄欢
Owner NANJING UNIV
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