An All-Solution Processed Recombination Layer with Mild Post-Treatment Enabling Efficient Homo-Tandem Non-fullerene Organic Solar Cells

Shangshang Chen; Guangye Zhang; Jing Liu; Huatong Yao; Jianquan Zhang; Tingxuan Ma; Zhengke Li; He Yan

doi:10.1002/adma.201604231

An All-Solution Processed Recombination Layer with Mild Post-Treatment Enabling Efficient Homo-Tandem Non-fullerene Organic Solar Cells

Adv Mater. 2017 Feb;29(6). doi: 10.1002/adma.201604231. Epub 2016 Dec 7.

Authors

Shangshang Chen^{1

2}, Guangye Zhang^{1

2}, Jing Liu², Huatong Yao², Jianquan Zhang², Tingxuan Ma^{1

2}, Zhengke Li², He Yan^{1

2

3}

Affiliations

¹ Hong Kong University of Science and Technology, Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, P. R. China.
² Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong.
³ Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.

PMID: 27925293
DOI: 10.1002/adma.201604231

Abstract

The first homo-tandem non-fullerene organic solar cell enabled by a novel recombination layer which only requires a very mild thermal annealing treatment is reported. The best efficiency achieved is 10.8% with a V_oc over 2.1 V, which is the highest V_oc for double-junction organic solar cells reported to date.

Keywords: homo-tandem; mild post-treatment; organic solar cells; recombination layers; small-molecular acceptors.