Organic-inorganic hybrid perovskite solar cell and preparation method thereof

A solar cell and perovskite technology, applied in the field of solar energy utilization, can solve the problems of no more than 300nm and poor stability, and achieve the effects of excellent stability, reduced preparation conditions, and reduced photoelectric conversion efficiency

Inactive Publication Date: 2017-12-12
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to: overcome the defects of existing perovskite solar cells with poor stability and grains not exceeding 300nm, and provide an organic solar cell with high stability, suitable for large-scale production, and grains exceeding 500nm. -Inorganic hybrid perovskite solar cell and its preparation method

Method used

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  • Organic-inorganic hybrid perovskite solar cell and preparation method thereof
  • Organic-inorganic hybrid perovskite solar cell and preparation method thereof
  • Organic-inorganic hybrid perovskite solar cell and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] (1) Deposit TiO on the transparent conductive electrode 2 Dense layer: Add 1g tetraisopropyl titanate to 1g acetylacetone and 3g ethanol solution to prepare TiO 2 Precursor, 50 nm thick TiO deposited by spray pyrolysis at 450 °C 2 dense layer.

[0029] (2) Preparation of mixed cation organic-inorganic hybrid perovskite solution: the molar ratio FAI:PbI 2 :MABr:PbBr 2 =0.70:070:0.30:0.30 The mixture is added to the mixed solution of DMSO and DMF, the mass ratio of DMF and DMSO is 9:1, and the concentration of the obtained mixed cation organic-inorganic hybrid perovskite solution is 0.3mol / L.

[0030] (3) on TiO 2 Deposition of perovskite films on dense layers: Perovskite films were prepared by thermal substrate spraying in atmospheric environment, where the carrier gas was N 2 , the spray gun pressure is 3 atmospheres, the hot substrate temperature is 130°C, the spraying time is controlled, the film thickness is 200nm, and then annealed at 100°C for 15min.

[0031]...

Embodiment 2

[0035] (1) Deposit TiO on the transparent conductive electrode 2Dense layer: Add 1g tetraisopropyl titanate to 1g acetylacetone and 3g ethanol solution to prepare TiO 2 Precursor, 50 nm thick TiO deposited by spray pyrolysis at 450 °C 2 dense layer.

[0036] (2) Preparation of mixed cation organic-inorganic hybrid perovskite solution: the molar ratio FAI:PbI 2 :MABr:PbBr 2 =0.85:0.85:0.15:0.15 The mixture is added to the mixed solution of DMSO and DMF, the mass ratio of DMF and DMSO is 9:1, and the concentration of the obtained mixed cation organic-inorganic hybrid perovskite solution is 0.3mol / L.

[0037] (3) on TiO 2 Deposition of perovskite films on dense layers: Perovskite films were prepared by thermal substrate spraying in atmospheric environment, where the carrier gas was N 2 , the spray gun pressure is 3 atmospheres, the hot substrate temperature is 130°C, the spraying time is controlled, the film thickness is 200nm, and then annealed at 100°C for 15min.

[0038]...

Embodiment 3

[0042] (1) Deposit TiO on the transparent conductive electrode 2 Dense layer: Add 1g tetraisopropyl titanate to 1g acetylacetone and 3g ethanol solution to prepare TiO 2 Precursor, 50 nm thick TiO deposited by spray pyrolysis at 450 °C 2 dense layer.

[0043] (2) Preparation of mixed cation organic-inorganic hybrid perovskite solution: the molar ratio FAI:PbI 2 :MABr:PbBr 2 =0.90:0.90:0.10:0.10 The mixture is added to the mixed solution of DMSO and DMF, the mass ratio of DMF and DMSO is 9:1, and the concentration of the obtained mixed cation organic-inorganic hybrid perovskite solution is 0.3mol / L.

[0044] (3) on TiO 2 Deposition of perovskite films on dense layers: Perovskite films were prepared by thermal substrate spraying in atmospheric environment, where the carrier gas was N 2 , the spray gun pressure is 3 atmospheres, the hot substrate temperature is 130°C, the spraying time is controlled, the film thickness is 200nm, and then annealed at 100°C for 15min.

[0045...

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Abstract

The invention discloses an organic-inorganic hybrid perovskite solar cell and a preparation method thereof. The preparation method comprises the steps of firstly, depositing a semiconductor compact layer on a transparent conductive electrode by a spray pyrolysis method; secondly, spraying a mixed positive ion organic-inorganic hybrid perovskite solution on the semiconductor compact layer by a thermal substrate spraying method to form a hybrid positive ion organic-inorganic hybrid perovskite thin film light absorption layer; thirdly, preparing a hole transmission layer on a surface of the light absorption layer; and finally, evaporating a gold electrode by thermal evaporation to obtain the organic-inorganic hybrid perovskite solar cell. The organic-inorganic hybrid perovskite solar cell is prepared by the thermal substrate spraying method, the preparation process is simplified, a large-area perovskite thin film can be rapidly prepared, and application on a large scale is facilitated; and moreover, the proportion among constituents of the hybrid positive ion organic-inorganic hybrid perovskite solution is optimized, the grain size of the obtained solar cell exceeds 500 nanometers, and the solar cell is relatively good in stability.

Description

technical field [0001] The invention belongs to the technical field of solar energy utilization. More specifically, the invention relates to a novel organic-inorganic hybrid perovskite solar cell and a preparation method thereof. Background technique [0002] Organic-inorganic hybrid perovskite solar cells (hereinafter referred to as perovskite solar cells) stand out among many new solar cells, attracting the attention of many scientific researchers, and were selected as one of the top ten scientific breakthroughs in 2013 by "Science" one. The light-absorbing material used in this battery is an organic-inorganic hybrid ABX 3 , wherein A is an organic cation of +1 valence, selected from methylammonium ion (CH 3 NH 3 + ), ethylamine ion (C 2 h 5 NH 3 + ) or methyl ether ion (NH 2 CH=NH 2 + ), B is a metal ion of +2 valence, selected from Sn 2+ or Pb 2+ , X is a halide ion, selected from Cl - 、Br - or I - , is a typical perovskite crystal structure, so the cell ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/12H10K30/151H10K30/10H10K2102/00Y02E10/549
Inventor 徐雪青高凯毕卓能徐刚张晓清
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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