New Organic Dye Based on a 3,6-Disubstituted Carbazole Donor for Efficient Dye-Sensitized Solar Cells
作者:Woochul Lee、Nara Cho、Jongchul Kwon、Jaejung Ko、Jong-In Hong
DOI:10.1002/asia.201100661
日期:2012.2.6
and characterized four organic dyes (9, 10, H1, H2) based on a 3,6‐disubstituted carbazole donor as sensitizers in dye‐sensitized solar cells. These dyes have high molar extinction coefficients and energy levels suitable for electron transfer from an electrolyte to nanocrystalline TiO2 particles. Under standard air mass 1.5 global (AM 1.5 G) solar irradiation, a device using dye H4 exhibits a short‐circuit
我们已合成和表征四种有机染料(9,10,H1,H2)的基础上一个3,6-二取代的咔唑供体作为染料敏化太阳能电池的增感剂。这些染料具有高的摩尔消光系数和能级,适于电子从电解质转移到纳米TiO 2颗粒中。在标准空气质量1.5全局(AM 1.5 G)太阳辐射下,使用染料H4的设备的短路电流密度(J sc)为13.7 mA cm -2,开路电压(V oc)为0.68 V,填充因子(FF)为0.70,计算出的效率为6.52%。在相同条件下,该性能可与基于N719(7.30%)的参考电池相媲美。在60°C下浸泡1000小时可见光后,总效率保持在初始值的95%。