Strong photocurrent enhancements in highly efficient flexible organic solar cells by adopting a microcavity configuration

Kung-Shih Chen; Hin-Lap Yip; José-Francisco Salinas; Yun-Xiang Xu; Chu-Chen Chueh; Alex K-Y Jen

doi:10.1002/adma.201306323

Strong photocurrent enhancements in highly efficient flexible organic solar cells by adopting a microcavity configuration

Adv Mater. 2014 May 28;26(20):3349-54. doi: 10.1002/adma.201306323. Epub 2014 Mar 11.

Authors

Kung-Shih Chen¹, Hin-Lap Yip, José-Francisco Salinas, Yun-Xiang Xu, Chu-Chen Chueh, Alex K-Y Jen

Affiliation

¹ Department of Materials Science and Engineering, University of Washington, Seattle, Washington, 98195-2120, USA.

PMID: 24615702
DOI: 10.1002/adma.201306323

Abstract

Organic solar cells often show inefficient light harvesting due to a short absorption path length limited by the low charge mobility of organic semiconductors. We demonstrate a flexible organic solar cell in a microcavity configuration using a TeO2/Ag semitransparent electrode to confine the optical field within the device with significant performance improvements and reaching a power conversion efficiency of 8.56%.

Keywords: ITO-free; flexible solar cells; microcavity; organic solar cells; top-illuminated.

Publication types

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