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Perovskite thin film solar cell with barium titanate as electron transport material and preparation method thereof

A technology for electron transport materials and solar cells, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as energy level mismatch, conductive anisotropy, and easy damage to adjacent functional layers

Pending Publication Date: 2019-10-01
HUNAN NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Poly(3,4-ethylenedioxythiophene: polystyrene sulfonate (PEDOT:PSS) is one of the most commonly used hole transport layer (HTL) materials in trans-type perovskite solar cells, but the material exists The energy level does not match the perovskite energy level, the conductivity is anisotropic, and its acidity is easy to damage the adjacent functional layer.

Method used

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  • Perovskite thin film solar cell with barium titanate as electron transport material and preparation method thereof

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Effect test

Embodiment 1

[0015] Embodiment 1: A kind of preparation method of the perovskite thin-film solar cell using barium titanate as electron transport material, according to the following steps:

[0016] First, the barium titanate film was deposited on the FTO conductive glass substrate by microemulsion method; then, the perovskite film was deposited on the barium titanate film by solution-vapor deposition; then, the perovskite film was deposited on the perovskite film by spin coating PCBZANT was deposited by the method; finally, the metal silver front and back electrodes were respectively deposited on the PCBZANT and FTO conductive glass substrates by the screen printing method to obtain the perovskite thin film solar cell.

Embodiment 2

[0017] Embodiment two: first, utilize sol-gel method to deposit barium titanate film on ITO conductive glass substrate; Then, utilize one-step solution method to deposit perovskite film on barium titanate film; PCBZANT was deposited by inkjet printing method; finally, metal aluminum front and back electrodes were deposited on PCBZANT and ITO conductive glass substrates by screen printing method respectively, that is, the perovskite thin film solar cell was obtained.

Embodiment 3

[0018] Embodiment three: first, utilize sol-gel method to deposit barium titanate thin film on ZTO conductive glass substrate; Then, utilize solution-vapor deposition method to deposit perovskite thin film on barium titanate thin film; PCBZANT was deposited on the mineral thin film by screen printing; finally, the metal aluminum front and back electrodes were deposited on the PCBZANT and ZTO conductive glass substrates by evaporation, respectively, that is, the perovskite thin film solar cell was obtained.

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Abstract

The invention discloses a perovskite thin film solar cell with barium titanate as an electron transport material and a preparation method thereof. The solar cell is characterized by comprising a transparent conductive substrate 1, a barium titanate thin film 2, a perovskite thin film 3, a thiophene bridged carbazole-anthracene copolymer 4 and a metal electrode 5 in turn from bottom to top. The advantages of the solar cell are as follows: on one hand, barium titanate can absorb ultraviolet light and generate a large number of electron-hole pairs, and can protect perovskite from being decomposedby ultraviolet light while increasing the number of electron-hole pairs; and on the other hand, the thiophene bridged carbazole-anthracene copolymer matches the energy level of perovskite, and has high thermal stability and high hole mobility. Therefore, the photoelectric conversion efficiency of the perovskite solar cell is greatly improved, and the stability of the cell is enhanced.

Description

technical field [0001] The invention belongs to the field of new energy, and specifically relates to a perovskite thin-film solar cell using barium titanate as an electron transport material and a preparation method thereof. Background technique [0002] Nowadays, the fuel used in production and life is basically non-renewable energy. Against the background of rapid global social and economic development, the demand for fossil fuels has also increased rapidly, which not only caused frequent shortages of various fossil fuel reserves, but also brought devastating damage to nature. In order to continue to maintain rapid economic development while protecting the environment, it is a major problem to be solved urgently to find a large-storage, clean and pollution-free renewable new energy. Solar energy is one of many renewable energy sources, because of its large reserves, convenience and high energy, it has attracted the attention of many scientists. Utilizing solar power to g...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/48
CPCH10K71/13H10K71/135H10K71/164H10K30/10H10K30/00Y02E10/549
Inventor 罗云荣陈国柱孙佳琪赵辰
Owner HUNAN NORMAL UNIVERSITY
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