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A wide-spectrum inorganic perovskite solar cell structure and its preparation method

A technology of solar cells and inorganic calcium, applied in the field of solar cells, can solve the problems of narrow spectral absorption range, low efficiency of inorganic perovskite solar cells, wide band gap, etc., to improve efficiency, increase absorption, improve spectral utilization and light Effect of Raw Carrier Extraction Efficiency

Active Publication Date: 2020-07-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the existing CsPbBr in the prior art 3 Wide band gap, narrow spectral absorption range, CsPbBr 3 In order to solve the problem of low efficiency of inorganic perovskite solar cells, the present invention provides a wide-spectrum inorganic perovskite solar cell structure and its preparation method, and the preparation method is simple, which is different from traditional CsPbBr 3 Preparation method of inorganic perovskite solar cells compatible with

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  • A wide-spectrum inorganic perovskite solar cell structure and its preparation method

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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, the structure of a wide-spectrum inorganic perovskite solar cell is conductive glass-1, photoanode layer-2, electron transport layer-3, perovskite light-absorbing layer-4, and photoactivation layer-5 from top to bottom. , Electrode layer-6.

[0025] (1) Conductive glass 1 composed of transparent glass and FTO was ultrasonically cleaned with acetone, isopropanol, and deionized water for 10 to 20 minutes, then dried with nitrogen flow, and then the conductive glass 1 was treated with ultraviolet and ozone for 20 minutes. ~30 minutes.

[0026] (2) Prepare the photoanode layer 2 on the conductive glass 1 . A layer of dense titanium dioxide was coated on conductive glass using the sol-gel method.

[0027] (3) The electron transport layer 3 is prepared on the photoanode layer 2 . A layer of mesoporous titania was prepared on dense titania using a hydrothermal method.

[0028] (4) Prepare the perovskite light absorbing layer 4 on the electron tr...

Embodiment 2

[0032] Such as figure 1 As shown, the structure of a wide-spectrum inorganic perovskite solar cell is conductive glass-1, photoanode layer-2, electron transport layer-3, perovskite light-absorbing layer-4, and photoactivation layer-5 from top to bottom. , electrode layer-6.

[0033] (1) Conductive glass 1 composed of transparent glass and FTO was ultrasonically cleaned with acetone, isopropanol, and deionized water for 10 to 20 minutes, then dried with nitrogen flow, and then the conductive glass 1 was treated with ultraviolet and ozone for 20 minutes. ~30 minutes.

[0034] (2) Prepare the photoanode layer 2 on the conductive glass 1 . A layer of dense titanium dioxide was coated on conductive glass using the sol-gel method.

[0035] (3) The electron transport layer 3 is prepared on the photoanode layer 2 . A layer of mesoporous titania was prepared on dense titania using a hydrothermal method.

[0036] (4) Prepare the perovskite light absorbing layer 4 on the electron tr...

example 3

[0040] Such as figure 1 As shown, the structure of a wide-spectrum inorganic perovskite solar cell is conductive glass-1, photoanode layer-2, electron transport layer-3, perovskite light-absorbing layer-4, and photoactivation layer-5 from top to bottom. , electrode layer-6.

[0041] (1) Conductive glass 1 composed of transparent glass and FTO was ultrasonically cleaned with acetone, isopropanol, and deionized water for 10 to 20 minutes, then dried with nitrogen flow, and then the conductive glass 1 was treated with ultraviolet and ozone for 20 minutes. ~30 minutes.

[0042] (2) Prepare the photoanode layer 2 on the conductive glass 1 . A layer of dense titanium dioxide was coated on conductive glass using the sol-gel method.

[0043] (3) The electron transport layer 3 is prepared on the photoanode layer 2 . A layer of mesoporous titania was prepared on dense titania using a hydrothermal method.

[0044] (4) Prepare the perovskite light absorbing layer 4 on the electron tr...

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Abstract

The invention discloses a wide-spectrum inorganic perovskite solar cell structure and a preparation method thereof. The structure of the perovskite solar cell proposed by the present invention includes, from top to bottom, conductive glass, photoanode layer, electron transport layer, perovskite light absorption layer, photoactive layer, and electrode layer, wherein the photoactive layer material is transition metal sulfide MoS 2 , black phosphorus, CsCu 5 Se 3 Wait. In the present invention, the inorganic perovskite solar cell adopts a photoactive layer and a perovskite light-absorbing layer to form a double light absorption layer, which improves the absorption of visible light and part of infrared light, realizes light absorption complementation, and improves the spectral utilization rate and photogenerated current of the battery. Sub-extraction efficiency, thereby greatly improving the efficiency of the battery.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a perovskite solar cell and a preparation method thereof. Background technique [0002] Research on new solar cells is the commanding height of technological competition in the field of renewable energy in the world, and has attracted extensive attention from the scientific and industrial circles. Organic-inorganic hybrid perovskite materials have the advantages of tunable band gap, high absorption coefficient, long carrier lifetime and high carrier mobility. The research on organic-inorganic hybrid perovskite solar cells at home and abroad is very active, and the progress is also very rapid. In just a few years, its photoelectric conversion efficiency has increased from 3.8% in 2009 to 23.3% recently. %. This efficiency is fully comparable to that of conventional commercial silicon solar cells. Although the efficiency of organic-inorganic hybrid perovskite sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/0725H01L31/032H01L31/18
CPCH01L31/032H01L31/0725H01L31/18Y02E10/50Y02P70/50
Inventor 刘黎明王红航王云祥吴艳花迟锋杨健君张智易子川
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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