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Application of interface modification Zinc oxide nanorod array serving as electronic transmission layer in perovskite solar energy battery preparation

A zinc oxide nanorod, electron transport layer technology, applied in nanotechnology, circuits, photovoltaic power generation and other directions, can solve problems such as poor coverage of perovskite solar cells

Inactive Publication Date: 2018-08-31
HENAN NORMAL UNIV
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Problems solved by technology

However, perovskite solar cells with ZnO nanorod arrays have the problem of poor coverage. To overcome this problem, doping electrodes or modifying the array surface is usually used to improve its stability[4]

Method used

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  • Application of interface modification Zinc oxide nanorod array serving as electronic transmission layer in perovskite solar energy battery preparation
  • Application of interface modification Zinc oxide nanorod array serving as electronic transmission layer in perovskite solar energy battery preparation

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Embodiment

[0039] Step (1), preparation of electron transport layer

[0040] Dissolve zinc acetate dihydrate in ethylene glycol methyl ether and stir evenly at room temperature, then add ethanolamine in an equimolar amount to the above solution dropwise, and stir and mix uniformly at 60°C to obtain a seed layer solution, Spin-coat the seed layer solution on the cleaned conductive glass surface, spin the film at a speed of 4000rpm for 30s, then place it in a muffle furnace and heat at 300°C for 10min, then heat at 500°C for 1h to obtain coated zinc oxide seeds layers of conductive glass;

[0041] Mix the aqueous solution of zinc nitrate hexahydrate and sodium hydroxide evenly, put it into the conductive glass coated with the zinc oxide seed layer prepared above, heat it in a water bath at 83°C for 10min, rinse the surface of the film with deionized water and absolute ethanol, and then Place in a muffle furnace and anneal at 450°C for 30 minutes to grow uniformly arranged zinc oxide nanor...

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Abstract

The invention discloses applications of interface modification Zinc oxide nanorod arrays serving as an electronic transmission layer in perovskite solar energy battery preparation, and belongs to theperovskite solar energy battery technical field; the technical main points comprise the following steps: using a water bath method to grow Zinc oxide nanorod arrays evenly arranged on a transparent substrate, spin coating a PCBA solution on the Zinc oxide nanorod array so as to modify the interface, spin coating a perovskite light-absorption layer and a cavity transmission layer in order on the Zinc oxide nanorod arrays after interface modification, finally vapor plating electrodes so as to obtain the perovskite solar energy battery using the interface modification Zinc oxide nanorod arrays serving as the electronic transmission layer. The PCBA structural formula is listed in description. The perovskite solar energy battery using the interface modification (via PCBA) Zinc oxide nanorod arrays serving as the electronic transmission layer can effectively improve the sunlight absorption, can increase the carrier transmission and can reduce the electron cavity composition, thus further improving the perovskite solar energy battery photoelectric conversion efficiency.

Description

technical field [0001] The invention belongs to the technical field of perovskite solar cells, and in particular relates to the application of an interface-modified zinc oxide nanorod array as an electron transport layer in the preparation of perovskite solar cells. Background technique [0002] With the development of human society, energy shortage and environmental degradation have become major problems faced by human beings. As an inexhaustible green energy source, solar energy has received more and more attention and research. [0003] Perovskite solar cells are a new type of solar cells developed in recent years, mainly using organic / inorganic hybrid ABX with perovskite crystal form 3 As an active layer, it has the advantages of simple preparation process, low cost, long carrier diffusion distance, and wide light absorption range. Its photoelectric conversion efficiency continues to rise, and the current certified efficiency is 22.7%. Therefore, perovskite solar cells...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48B82Y40/00
CPCB82Y40/00H10K71/12H10K30/35H10K2102/00Y02E10/549
Inventor 杨纪恩张琼张彬刘志勇刘海瑞
Owner HENAN NORMAL UNIV
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