State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 158 Zhongshan Road, 116012 Dalian, China.
Org Lett. 2009 Dec 3;11(23):5542-5. doi: 10.1021/ol9022936.
Dye-sensitized solar cells (DSCs) based on two novel carbazole dyes (TC301 and TC306) and a Br(-)/Br(3)(-) redox mediator in dried CH(3)CN solutions as electrolytes yielded a V(oc) of 1.156 V and a eta value of 3.68% and a V(oc) of 0.939 V and a eta value of 5.22% under simulated AM 1.5, respectively. The dyes TC301 and TC306 have more positive HOMO levels (1.59 and 1.38 V vs NHE) than the redox potential of Br(-)/Br(3)(-)-based electrolytes, which have sufficient driving force to regenerate dyes. Under similar conditions with an I(-)/I(3)(-) instead of a Br(-)/Br(3)(-) redox mediator, DSCs sensitized by the dyes TC301 and TC306 produced a V(oc) of 0.696 V and a eta value of 2.36% and a V(oc) of 0.621 V and a eta value of 4.10%, respectively.
基于两种新型咔唑染料（TC301 和 TC306）和 Br(-)/Br(3)(-)氧化还原介体在干燥的 CH(3)CN 溶液中的染料敏化太阳能电池（DSCs）在模拟 AM 1.5 下分别产生了 1.156 V 的Voc 和 3.68%的效率以及 0.939 V 的 Voc 和 5.22%的效率。染料 TC301 和 TC306 的 HOMO 能级（相对于 NHE 为 1.59 和 1.38 V）比基于 Br(-)/Br(3)(-)电解质的氧化还原电位更正，这为染料的再生提供了足够的驱动力。在相同的条件下，用 I(-)/I(3)(-)代替 Br(-)/Br(3)(-)氧化还原介体，由染料 TC301 和 TC306 敏化的 DSCs 分别产生了 0.696 V 的 Voc 和 2.36%的效率以及 0.621 V 的 Voc 和 4.10%的效率。
