Interface engineering of highly efficient perovskite solar cells

Author:

Zhou Huanping12,Chen Qi12,Li Gang1,Luo Song12,Song Tze-bing12,Duan Hsin-Sheng12,Hong Ziruo1,You Jingbi1,Liu Yongsheng12,Yang Yang12

Affiliation:

1. Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA.

2. California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA.

Abstract

A layered approach improves solar cells Perovskite films received a boost in photovoltaic efficiency through controlled formation of charge-generating films and improved current transfer to the electrodes. Zhou et al. lowered the defect density of the film by controlling humidity while the perovskite film formed from lead chloride and methylammonium iodide. Low-temperature processing steps allowed the use of materials that draw current out of the perovskite layer more efficiently. These and other modifications enabled a maximum cell efficiency of just over 19% and an average of 16.6%. Science , this issue p. 542

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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