KRICT-EPFL Global Research Laboratory, Advanced Materials Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 305-600, Republic of Korea.
Nano Lett. 2011 Nov 9;11(11):4789-93. doi: 10.1021/nl2026184. Epub 2011 Oct 4.
Sb(2)S(3)-sensitized mesoporous-TiO(2) solar cells using several conjugated polymers as hole-transporting materials (HTMs) are fabricated. We found that the cell performance was strongly correlated with the chemical interaction at the interface of Sb(2)S(3) as sensitizer and the HTMs through the thiophene moieties, which led to a higher fill factor (FF), open-circuit voltage (V(oc)), and short-circuit current density (J(sc)). With the application of PCPDTBT (poly(2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)-alt-4,7(2,1,3-benzothiadiazole)) as a HTM in a Sb(2)S(3)-sensitized solar cell, overall power conversion efficiencies of 6.18, 6.57, and 6.53% at 100, 50, and 10% solar irradiation, respectively, were achieved with a metal mask.
采用几种共轭聚合物作为空穴传输材料（HTMs），制备了 Sb(2)S(3)-敏化的介孔-TiO(2)太阳能电池。我们发现电池性能与 Sb(2)S(3)敏化剂与 HTMs 通过噻吩部分的化学相互作用密切相关，这导致了更高的填充因子（FF）、开路电压（V(oc)）和短路电流密度（J(sc)）。在 Sb(2)S(3)敏化太阳能电池中应用 PCPDTBT（聚（2,6-（4,4-双（2-乙基己基）-4H-环戊[2,1-b;3,4-b']二噻吩）-交替-4,7(2,1,3-苯并噻二唑））作为 HTM 时，使用金属掩模分别在 100、50 和 10%太阳辐照下实现了 6.18%、6.57%和 6.53%的整体功率转换效率。
