A new ladder-type benzodi(cyclopentadithiophene)-based donor-acceptor polymer and a modified hole-collecting PEDOT:PSS layer to achieve tandem solar cells with an open-circuit voltage of 1.62 V

Yung-Lung Chen; Wei-Shun Kao; Che-En Tsai; Yu-Ying Lai; Yen-Ju Cheng; Chain-Shu Hsu

doi:10.1039/c3cc43756f

A new ladder-type benzodi(cyclopentadithiophene)-based donor-acceptor polymer and a modified hole-collecting PEDOT:PSS layer to achieve tandem solar cells with an open-circuit voltage of 1.62 V

Chem Commun (Camb). 2013 Sep 11;49(70):7702-4. doi: 10.1039/c3cc43756f.

Authors

Yung-Lung Chen¹, Wei-Shun Kao, Che-En Tsai, Yu-Ying Lai, Yen-Ju Cheng, Chain-Shu Hsu

Affiliation

¹ Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hseuh Road, Hsin-Chu, 30010, Taiwan.

PMID: 23877029
DOI: 10.1039/c3cc43756f

Abstract

We have developed a new ladder-type conjugated polymer and a robust interconnecting layer (ICL) integrating a hole-collecting m-PEDOT:PSS layer with an electron-collecting ZnO layer. The inverted device using exhibited a high power conversion efficiency (PCE) of 5.76% with a Voc of 0.81 V, a Jsc of 12.82 mA cm(-2), and a FF of 55.5%. The inverted tandem device incorporating the and ICL achieves a Voc of 1.62 V leading to a PCE of 7.08%.