Department of Applied Chemistry, National Chiao Tung University , 1001 University Road, Hsinchu, 30010, Taiwan.
ACS Appl Mater Interfaces. 2017 Jul 26;9(29):24797-24803. doi: 10.1021/acsami.7b06650. Epub 2017 Jul 13.
A formylated benzodi(cyclopentadithiophene) (BDCPDT) ladder-type structure with forced coplanarity is coupled with two 1,1-dicyanomethylene-3-indanone (IC) moieties via olefination to form a non-fullerene acceptor, BDCPDT-IC. The BDCPDT-IC, as an acceptor (A) with broad light-absorbing ability and excellent solution processability, is combined with a second PCBM acceptor (A) and a medium band gap polymer, PBDB-T, as the donor (D) to form a ternary blend with gradient HOMO/LUMO energy alignments and panchromatic absorption. The device with the inverted architecture using the D:A:A ternary blend has achieved a highest efficiency of 9.79% with a superior J of 16.84 mA cm.
一种具有形式化苯并二（环戊二噻吩）（BDCPDT）梯形结构和强制共面性的结构，通过烯烃复分解反应与两个 1,1-二氰基亚甲基-3-茚满酮（IC）部分偶联，形成非富勒烯受体 BDCPDT-IC。BDCPDT-IC 作为一种具有宽光吸收能力和良好溶液加工性能的受体（A），与第二个 PCBM 受体（A）和一个中带隙聚合物 PBDB-T 作为供体（D）结合，形成具有梯度 HOMO/LUMO 能量排列和全色吸收的三元混合物。采用倒置结构的器件使用 D:A:A 三元混合物，实现了最高 9.79%的效率和卓越的 J 为 16.84 mA cm。
