High efficiency of CdSe quantum-dot-sensitized TiO2 inverse opal solar cells
High efficiency of CdSe quantum-dot-sensitized TiO2 inverse opal solar cells
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DOI：
10.1063/1.2757130
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发表时间：
2007-07-09
影响因子：
4
通讯作者：
Toyoda, Taro
中科院分区：
文献类型：
--
作者：
Diguna, Lina J.;Shen, Qing;Toyoda, Taro
作者已经证明了一种敏化类型的太阳能电池的方法，基于二氧化钛反蛋白石和使用镉硒量子点(量子点)作为敏化剂。采用化学浴沉积方法，在二氧化钛反蛋白石电极上原位生长了CdSe量子点。硫化锌和氟离子的表面修饰显著提高了薄膜的短路光电流密度、开路电压、填充因子和效率等光伏性能。在100 mW/cm(2)的太阳光照射下，获得了约2.7%的功率转换效率。对于用半导体量子点敏化的金属氧化物太阳能电池来说，这个值相对较高。(C)2007年美国物理研究所。
The authors have demonstrated an approach to sensitized-type solar cells, based on TiO2 inverse opal and the use of CdSe quantum dots (QDs) as sensitizers. CdSe QDs were grown in situ on TiO2 inverse opal electrodes, utilizing a chemical bath deposition method. All of the photovoltaic performances, including short circuit photocurrent density, open circuit voltage, fill factor, and efficiency, were significantly improved by surface modification with ZnS and fluoride ions. A power conversion efficiency of about 2.7% has been attained, under solar illumination of 100 mW/cm(2). This value is relatively high for metal oxide solar cells, sensitized with semiconductor QDs. (C) 2007 American Institute of Physics.