PolyU research achieves record efficiency in semi-transparent solar cells, advancing the development of building-integrated photovoltaics (IMAGE)

The Hong Kong Polytechnic University

PolyU research achieves record efficiency in semi-transparent solar cells, advancing the development of building-integrated photovoltaics

Caption

a The molecular structures and associated thin films (1.5*1.5 cm2) of representative polymer donors used in this work. b The Tauc plot data of donors. c The corresponding transmittance spectra of donors. The inserted color map corresponds to the photopic response of the human eye. d The absorption spectra of binary PBOF: eC9 and ternary PBOF: eC9: PC61BM films. e J-V curves, f EQE spectra, and (g) Jph versus Veff characterization of corresponding binary PBOF: eC9 and optimal ternary PBOF: eC9: PC61BM based opaque devices.

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