Homo-Tandem Polymer Solar Cells with VOC >1.8 V for Efficient PV-Driven Water Splitting

Yangqin Gao; Vincent M Le Corre; Alexandre Gaïtis; Marios Neophytou; Mahmoud Abdul Hamid; Kazuhiro Takanabe; Pierre M Beaujuge

doi:10.1002/adma.201504633

Homo-Tandem Polymer Solar Cells with VOC >1.8 V for Efficient PV-Driven Water Splitting

Adv Mater. 2016 May;28(17):3366-73. doi: 10.1002/adma.201504633. Epub 2016 Mar 4.

Authors

Yangqin Gao¹, Vincent M Le Corre¹, Alexandre Gaïtis¹, Marios Neophytou¹, Mahmoud Abdul Hamid¹, Kazuhiro Takanabe¹, Pierre M Beaujuge¹

Affiliation

¹ Physical Sciences and Engineering Division, Solar and Photovoltaic Engineering Research Center (SPERC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.

PMID: 26946165
DOI: 10.1002/adma.201504633

Abstract

Efficient homo-tandem and triple-junction polymer solar cells are constructed by stacking identical subcells composed of the wide-bandgap polymer PBDTTPD, achieving power conversion efficiencies >8% paralleled by open-circuit voltages >1.8 V. The high-voltage homo-tandem is used to demonstrate PV-driven electrochemical water splitting with an estimated solar-to-hydrogen conversion efficiency of ≈6%.

Keywords: PBDTTPD; PCBM; PV-driven water splitting; bulk heterojunction solar cells; homo-tandem; multijunction devices; organic photovoltaics.

Publication types

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