苯并噻二唑与噻吩：辅助受体对基于给体-受体的共聚物光伏性能的影响。
Benzothiadiazole Versus Thiophene: Influence of the Auxiliary Acceptor on the Photovoltaic Properties of Donor-Acceptor-Based Copolymers.
机构信息
School of Materials Science and Engineering, Beihang University, Xueyuan Road 37, Haidian District, Beijing, 100191, P. R. China.
School of Chemistry, Beihang University, Xueyuan Road 37, Haidian District, Beijing, 100191, P. R. China.
出版信息
Macromol Rapid Commun. 2018 Jan;39(2). doi: 10.1002/marc.201700547. Epub 2017 Oct 25.
Two donor-acceptor (D-A) type conjugated copolymers, P1 and P2, are designed and synthesized. A classical benzothiadiazole acceptor is used to replace a thiophene unit in the polymer chain of P1 to obtain P2 terpolymer. Compared with P1, P2 exhibits broader absorption spectra, higher absorption coefficient, deeper lowest unoccupied molecular orbital level, and a relatively lower band gap. As a result, the P2-based solar cell exhibits a high power conversion efficiency (PCE) of 6.60%, with a short-circuit current (J ) of 12.43 mA cm , and a fill factor (FF) of 73.1%, which are higher than those of the P1-based device with a PCE of 4.70%, a J of 9.43 mA cm , and an FF of 61.6%.
设计并合成了两种给体-受体（D-A）型共轭共聚物 P1 和 P2。在 P1 的聚合物链中用经典的苯并噻二唑受体取代噻吩单元，得到 P2 三元共聚物。与 P1 相比，P2 具有更宽的吸收光谱、更高的吸收系数、更深的最低未占据分子轨道能级和相对较低的能带隙。因此，基于 P2 的太阳能电池表现出较高的功率转换效率（PCE）为 6.60%，短路电流（Jsc）为 12.43 mA cm-2，填充因子（FF）为 73.1%，高于基于 P1 的器件的 PCE 为 4.70%、Jsc 为 9.43 mA cm-2 和 FF 为 61.6%。
Zotero 插件