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

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 ...

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

Cs-doped ZnO has not been seen in organic / inorganic hybrid perovskite cells based on CH3NH3PbX3. Electron transport layer reports

Images