Polymer donor

PBOF WBG wide bandgap ST-OPV ST-OSC

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PBOF: an ultrawide bandgap polymer donor with an optical band-gap to 2.20 eV. The opaque OSCs based on PBOF can afford a PCE of 15.60% in the binary device and a PCE of 16.40% in the ternary device due to the good charge transport property of the polymer and optimal active layer morphology. The EQE spectra of the PBOF-based opaque OSCs delivered a remarkable concave coverage in the visible region that matches well with the human eye photopic response spectrum. As a result, the ST-OSCs based on PBOF afforded a PCE over 10% with an AVT over 30% without optical modulation.

 

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