Enhance the performance of dye-sensitized solar cells by Co-grafting amphiphilic sensitizer and hexadecylmalonic acid on TiO2 nanocrystals
Enhance the performance of dye-sensitized solar cells by Co-grafting amphiphilic sensitizer and hexadecylmalonic acid on TiO2 nanocrystals
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DOI：
10.1021/jp0365965
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发表时间：
2003-12-25
影响因子：
3.3
通讯作者：
Grätzel, M
中科院分区：
文献类型：
--
作者：
Wang, P;Zakeeruddin, SM;Grätzel, M
以两亲性多吡啶钌配合物cis-RuLL '（SCN）（2）（L = 4，4'-二羧酸-2，2 '-联吡啶，L' = 4，4 '-二壬基-2，2'-联吡啶）为捕光剂，十六烷基丙二酸（HDMA）为共吸附剂，在纳米TiO 2薄膜上制备了染料敏化太阳能电池。在模拟的全日照（空气质量1.5，100 mW cm（-2））下，电池产生15.2 mA cm（-2）的短路光电流、764 mV的开路光电压和7.8%的总功率转换效率。与不含HDMA的电池相比，共接枝显著增强了光电流、光电压和整体转换效率。器件在55 ℃光浸泡下表现出良好的稳定性。
Dye-sensitized solar cells have been fabricated based on nanocrystalline TiO2 film derivatized with an amphiphilic polypyridyl ruthenium complex, cis-RuLL'(SCN)(2) (L = 4,4'-dicarboxylic acid-2,2'-bipyridine, L' = 4,4'-dinonyl-2,2'-bipyridine), as light-harvester and hexadecylmalonic acid (HDMA) as coadsorbent. The cells generated a short-circuit photocurrent of 15.2 mA cm(-2), an open-circuit photovoltage of 764 mV, and a total power conversion efficiency of 7.8% under simulated full sunlight (air mass 1.5, 100 mW cm(-2)). Co-grafting enhanced the photocurrent, photovoltage, and overall conversion efficiency considerably with respect to cells containing no HDMA. Devices showed a good stability under light soaking at 55 degreesC.