Synthesis and photovoltaic properties of copolymers with a fluoro quinoxaline unit
作者:Suhee Song、Seungmin Kim、Wonjun Kim、Seong Soo Park、Sung Heum Park、Youngeup Jin
DOI:10.1002/pola.28957
日期:2018.4.15
Two novel accepterunits, namely, difluoroquinoxaline and monofluoroquinoxaline, were prepared and used for the synthesis of the conjugated polymers containing electron donor–acceptor pairs for use in organicphotovoltaics. The introduction of a fluorine atom into the quinoxaline moiety resulted in polymers with lowered highest occupied molecular orbital (HOMO) energy levels; this increased the open
Dialkyl‐fluoroquinoxaline–based polymeric donor for binary and ternary organic solar cell applications
作者:Rajalingam Agneeswari、Yoomi Ahn、Vellaiappillai Tamilavan、Insoo Shin、Chnan‐gi Shin、Sung Heum Park、Youngeup Jin
DOI:10.1002/pol.20220582
日期:——
along with widely used fullerene and non-fullerene acceptors. The OSCs prepared by using P(BDTT-TfQT):fullereneblend gave a maximum power conversion efficiency (PCE) of 4.64%, and the PCE further increased to 6.77% by using a non-fullerene acceptor instead of fullerene. Overall, the improved light absorption results in higher photo-current and PCE for P(BDTT-TfQT):non-fullerene blend compared to that of