Hybrid solar cell with Cs mingling with ZnO as electron transfer layer

An electron transport layer, solar cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as poor device stability, and achieve the effects of low cost, high photoelectric conversion efficiency, and low reaction temperature

Inactive Publication Date: 2013-12-18
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

In 2011, Park et al further increased the photoelectric conversion efficiency to 6.5%, see Nano Lett. 2012, 12, 1863-1867, but the stability of the device is very poor
Cs-doped ZnO has not been seen in organic / inorganic hybrid perovskite cells based on CH3NH3PbX3. Electron transport layer reports

Method used

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  • Hybrid solar cell with Cs mingling with ZnO as electron transfer layer

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Embodiment

[0032] 1) Cut the FTO glass substrate into the required 20mm×20mm, wash with detergent and deionized water for 15 minutes to remove grease and organic matter, and then ultrasonically wash with acetone, isopropanol, and deionized water for 15 minutes , and finally put the substrate into an oven for drying;

[0033] 2) Pour 20mL of ethylene glycol methyl ether into the Erlenmeyer flask, weigh 0.878g of zinc acetate dihydrate and mix 20ml of ethylene glycol methyl ether, and then add 120 microliters of ethanolamine dropwise as a stabilizer to prepare Zn 2+ ZnO seed layer solution with a concentration of 0.2mol / L; seal the Erlenmeyer flask with plastic wrap, place it on a magnetic stirrer, and stir for 30 minutes, then put the fully stirred ZnO seed layer solution into an electric blast drying oven for aging , the curing temperature is 60°C, and the curing time is 2 hours; place the matured seed layer solution down to room temperature, and perform spin coating on the substrate to ...

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Abstract

Provided is a hybrid solar cell with Cs mingling with ZnO as an electron transfer layer. The hybrid solar cell with the Cs mingling with the ZnO as the electron transfer layer is composed of a transparent conductive glass substrate, a Cs mingling with ZnO nanorod electron transfer layer, layered perovskite hybrid materials CH3NH3PbX3(wherein X is C1, Br or I), a 2, 2', 7 and 7'- four [N, N - two (four - methoxy phenyl) amidogen] - 9, 9' - spirobifluorene hole transport layer and an Au metal back electrode layer which sequentially form a layered structure in a combining mode. The hybrid solar cell with the Cs mingling with the ZnO as the electron transfer layer has the advantages that the Cs mingling with the ZnO as the electron transfer layer is used in the hybrid solar cell, compared with zinc oxide, 2-3 orders of magnitude of electronic transmission capacity are improved, the recombination of electron-hole is effectively constrained, and the photoelectric conversion efficiency is high; the preparing method of the hybrid solar cell is simple in process, low in reaction temperature, high in efficiency, rich in raw material, low in cost, environmentally friendly, free of pollution, and suitable for industrial mass production.

Description

technical field [0001] The invention relates to the field of organic photoelectric-solar cells, in particular to a hybrid solar cell with Cs-doped ZnO as an electron transport layer. Background technique [0002] With the increasing depletion of global oil resources, solar cells have become a frontier subject of extensive research as a feasible method to solve the world's energy crisis. The research and development of solar cells has always been carried out around the following two key issues: 1) Improving photoelectric conversion efficiency and life; 2) Using new materials to reduce costs. So far, the high temperature and high vacuum required in the preparation process of inorganic silicon solar cells make the production cost of inorganic silicon solar cells very high, which greatly limits its application. Organic polymer bulk heterojunction solar cells are low-cost, non-toxic, easy to prepare, easy to realize flexible devices, and can conveniently and effectively change ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/46H01L51/48
CPCY02E10/549Y02P70/50
Inventor 杨利营印寿根秦文静唐彤左红文郑克宁于景景张颖刘巍嵩李海林邹亚伟
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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