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Homo‐Tandem Polymer Solar Cells with V OC >1.8 V for Efficient PV‐Driven Water Splitting
Author(s) -
Gao Yangqin,
Le Corre Vincent M.,
Gaïtis Alexandre,
Neophytou Marios,
Hamid Mahmoud Abdul,
Takanabe Kazuhiro,
Beaujuge Pierre M.
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201504633
Subject(s) - tandem , materials science , stacking , polymer , open circuit voltage , water splitting , voltage , band gap , energy conversion efficiency , photovoltaic system , optoelectronics , nanotechnology , engineering physics , electrical engineering , physics , photocatalysis , engineering , chemistry , biochemistry , nuclear magnetic resonance , composite material , catalysis
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%.