Homo-Tandem Polymer Solar Cells with VOC > 1.8 V for Efficient PV-driven Water Splitting
Y. Gao, V. Le Corre, A. Gaïtis, M. Neophytou, M. Abdul Hamid, K. Takanabe, P.M. Beaujuge
Advanced Materials, 28 (17), Pages 3366-3373, (2016)
Bulk heterojunction solar cells, Homo-tandem, Multijunction devices, Organic photovoltaics, PBDTTPD, PCBM, PV-driven water splitting
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%.
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