Hybrid solar cell with aluminum-doped zinc oxide nanorod as electron transfer layer

Abstract

A hybrid solar cell with an aluminum-doped zinc oxide nanorod as the electron transfer layer is composed of a transparent conducting glass substrate, the aluminum-doped zinc oxide nanorod electron transfer layer, a layered perovskite-like hybrid material CH3NH3PbX3(wherein X is Cl, or Br or I),2,2',7,7'-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene hole transfer layer and an Au metal back electrode layer, wherein all the parts form a laminated structure in sequence. The hybrid solar cell with the aluminum-doped zinc oxide nanorod as the electron transfer layer has the advantages that due to the fact that the aluminum-doped zinc oxide nanorod is used as the electron transfer layer in the hybrid solar cell, the specific surface area is large, electron-transport capacity is high, electron-hole combination is effectively restrained, and photoelectric conversion efficiency is high; the manufacturing method and technique are simple, reaction temperature is low, efficiency is high, raw materials are rich, cost is low, and environmental friendliness is achieved. The hybrid solar cell with the aluminum-doped zinc oxide nanorod as the electron transfer layer is suitable for industrialized large-scale production.

Description

technical field [0001] The invention relates to the field of organic photoelectric-solar cells, in particular to a hybrid solar cell in which aluminum-doped zinc oxide nanorods are electron transport layers. 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 convenientl...

AI Technical Summary

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

Al-doped ZnO nanoparticles have not been seen in organic / inorganic hybrid perovskite cells based on CH3NH3PbX3. Rods are reported for the electron transport layer

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