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Zinc oxide (ZnO) is widely used as an electron transporting layer (ETL) for organic solar cells (OSCs). Here, a low‐cost commercial water/alcohol‐soluble fluorescent conversion agent, sodium 2,2′‐([1,1′‐biphenyl]−4,4′‐diyldivinylene)‐bis(benzenesulfonate) (CBS), is incorporated into ZnO to develop a novel organic‐inorganic hybrid ETL for high‐performance OSCs. The photoinduced charge transfer from...
Benefiting from low cost and simple synthesis, polythiophene (PT) derivatives are one of the most popular donor materials for organic solar cells (OSCs). However, polythiophene‐based OSCs still suffer from inferior power conversion efficiency (PCE) than those based on donor–acceptor (D–A)‐type conjugated polymers. Herein, a fluorinated polythiophene derivative, namely P4T2F‐HD, is introduced to modulate...
Two ladder-type small molecule acceptors IDT-BT-R and IDT-BT-R-CN are utilized in non-fullerene polymer solar cells by pairing with PTB7-Th as donor polymer, in which PTB7-Th:IDT-BT-R solar cells achieve high performance up to 8.3% with high voltage of 1.02 V and low energy loss of 0.59 eV. Thermal annealing triggered local rearrangement of ladder-type molecules in n-type phases of bulk heterojunction...
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