A new small molecule acceptor of IDTCN with indaceno[2,1-b:6,5-b’]dithiophene as electron-donating core and CPTCN (2-(6-oxo-5,6-dihydro-4H-cyclopenta[c]thiophen-4-lidene)malononitrile) as electron-withdrawing end-capping group was synthesized and investigated in organic solar cells. The IDTCN shows strong and broad absorption with a high extinction coefficient and appropriate energy levels matching with wide bandgap donor polymer. The best device based on PBT1-EH:IDTCN exhibits an open circuit voltage (V_oc) of 0.93 V, a short circuit current (J_sc) of 13.31 mA/cm², a FF of 0.702, achieving a PCE of 8.69%.

一种新的IDTCN小分子受体，其具有茚并[2,1-b：6,5-b']二噻吩作为供电子核和CPTCN（2-（6-oxo-5,6-dihydro-4H-cyclopenta [ c合成并研究了作为吸电子封端基的[噻吩-4-亚甲基）丙二腈），并在有机太阳能电池中进行了研究。IDTCN表现出强而宽的吸收性，具有高消光系数和与宽带隙供体聚合物相匹配的适当能级。基于PBT1-EH：IDTCN的最佳器件具有0.93 V的开路电压（V _oc），13.31 mA / cm ^2的短路电流（J _sc），0.702的FF，实现了8.69％的PCE。