Binary-metal perovskites toward high-performance planar-heterojunction hybrid solar cells

Fan Zuo; Spencer T Williams; Po-Wei Liang; Chu-Chen Chueh; Chien-Yi Liao; Alex K-Y Jen

doi:10.1002/adma.201401641

Binary-metal perovskites toward high-performance planar-heterojunction hybrid solar cells

Adv Mater. 2014 Oct 8;26(37):6454-60. doi: 10.1002/adma.201401641. Epub 2014 Aug 14.

Authors

Fan Zuo¹, Spencer T Williams, Po-Wei Liang, Chu-Chen Chueh, Chien-Yi Liao, Alex K-Y Jen

Affiliation

¹ Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA.

PMID: 25123496
DOI: 10.1002/adma.201401641

Abstract

A simple, low temperature solution process for Pb/Sn binary-metal perovskite planar-heterojunction solar cells is demonstrated. Sn inclusion substantially influences the band-gap, crystallization kinetics, and thin-film formation leading to a broadened light absorption and enhanced film coverage on ITO/PEDOT:PSS. As a result, the optimized device shows a PCE exceeding 10%, which is the best result for binary-metal perovskite solar cells so far.

Keywords: crystallization control; extended light absorption; perovskite solar cell; planar heterojunction; tin replacement of lead.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.