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Carbon counter electrode antimony sulfide thin film solar cell and preparation method thereof

A thin-film solar cell and antimony sulfide technology, applied in nano-semiconductor materials and new energy fields, can solve the problems of expensive metal electrodes, affecting long-term operation stability, and being unsuitable for commercial applications, achieving great application value and low equipment requirements. , the effect of improving energy conversion efficiency

Active Publication Date: 2019-06-07
HUZHOU TEACHERS COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has the following problems, which make it unsuitable for commercial applications: (1) The introduction of the organic hole transport layer affects its long-term operational stability, resulting in rapid degradation of battery performance; (2) The noble metal electrodes are expensive; (3) Vacuum deposition increases the cost of production

Method used

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  • Carbon counter electrode antimony sulfide thin film solar cell and preparation method thereof
  • Carbon counter electrode antimony sulfide thin film solar cell and preparation method thereof
  • Carbon counter electrode antimony sulfide thin film solar cell and preparation method thereof

Examples

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Embodiment 1

[0028] (1) Treatment of FTO conductive film: Clean the FTO conductive glass with glass cleaner, acetone, and isopropanol ultrasonically, dry it with nitrogen, and treat it with UV-ozone for 30 minutes.

[0029] (2) The preparation steps of the electron transport layer: on the clean FTO conductive substrate by spin-coating TiO 2 The sol-gel precursor was then annealed in air at a temperature of 450 o C, the annealing time is 30 minutes. (The thickness of the titanium dioxide film obtained is 20-40 nm)

[0030] (3) The preparation steps of antimony sulfide thin film light absorption layer: 360 mL Na with a concentration of 0.25 mol / L 2 S 2 o 3 solution placed in less than 5 o C in an ice bath, then to Na 2 S 2 o 3 Add 40 mL of SbCl with a concentration of 0.07 mol / L dropwise to the solution 3 acetone solution and using a magnetic stirrer to stir, dropwise added SbCl 3 After the acetone solution, when the solution turns orange after 30 minutes of reaction, it will be co...

Embodiment 2

[0033] (1) Treatment of FTO conductive film: Clean the FTO conductive glass with glass cleaner, acetone, and isopropanol ultrasonically, dry it with nitrogen, and treat it with UV-ozone for 30 minutes.

[0034](2) The preparation steps of the electron transport layer: on the clean FTO conductive substrate by spin-coating TiO 2 The sol-gel precursor was then annealed in air at a temperature of 450 o C, the annealing time is 30 minutes. (The thickness of the titanium dioxide film obtained is 20-40 nm)

[0035] (3) The preparation steps of antimony sulfide thin film light absorption layer: 360 mL Na with a concentration of 0.25 mol / L 2 S 2 o 3 solution placed in less than 5 o C in an ice bath, then to Na 2 S 2 o 3 Add 40 mL of SbCl with a concentration of 0.07 mol / L dropwise to the solution 3 acetone solution and using a magnetic stirrer to stir, dropwise added SbCl 3 After the acetone solution, when the solution turns orange after 30 minutes of reaction, it will be coa...

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Abstract

The present invention relates to the field of nano semiconductor materials and new energy, especially to a carbon counter electrode antimony sulfide thin film solar cell and a preparation method thereof. The carbon counter electrode antimony sulfide thin film solar cell comprises conductive glass and an electron transport layer as a cathode, a antimony sulfide thin film as a light absorption layer, and a carbon layer as a counter electrode. The carbon electrode with stable performances is applied to the antimony sulfide thin film solar cell and taken as a counter electrode, so that the carboncounter electrode antimony sulfide thin film solar cell and the preparation method thereof are low in cost, simple in process and environmental-friendly, and are convenient for large-scale manufacturing.

Description

Technical field: [0001] The invention relates to the fields of nanometer semiconductor materials and new energy sources, in particular to a carbon counter electrode antimony sulfide thin film solar cell and a preparation method thereof. Background technique: [0002] The development of sustainable and clean energy is a global issue facing all mankind. Solar energy is an inexhaustible and inexhaustible green energy, and solar cells that convert solar energy into electrical energy are one of the ways to develop a low-carbon economy and solve energy and environmental problems. Thin-film solar cells have attracted great attention due to their advantages of low cost, high stability, and solution-based preparation. At present, the highest efficiency of CIGS and CdTe thin film solar cells has exceeded 22% [Physica Status Solidi RRL2016, 10, 583]. However, the scarcity of indium and tellurium and the toxicity of cadmium will hinder their commercial application. Recently, many non...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0445H01L31/0224H01L31/18
CPCY02E10/50Y02P70/50
Inventor 吴璠陈伟敏蒋岚
Owner HUZHOU TEACHERS COLLEGE
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