作者:Huaxing Zhou、Liqiang Yang、Samuel C. Price、Kelly Jane Knight、Wei You
DOI:10.1002/anie.201003357
日期:2010.10.18
Mind the gap! Polymers synthesized by replacing the benzene unit in the acceptor 4,7‐dithien‐2‐yl‐2,1,3‐benzothiadiazole (DTBT) with a π‐electron‐deficient pyridine unit (DTPyT) show a smaller bandgap than their DTBT counterparts. Power conversion efficiencies of over 6 % are demonstrated in solar cell studies (see picture; PNDT, PQDT, and PBnDT represent dithiophene derivatives as weak donors).
注意间隔!通过用π电子缺陷吡啶单元(DTPyT)取代受体4,7-二噻吩-2-基-2,1,3-苯并噻二唑(DTBT)合成的聚合物显示出比其DTBT对应物更小的带隙。太阳能电池研究证明了超过6%的功率转换效率(参见图片; PNDT,PQDT和PBnDT代表作为弱供体的二噻吩衍生物)。