Nanowire-based dye-sensitized solar cells
Nanowire-based dye-sensitized solar cells
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DOI：
10.1063/1.1861510
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发表时间：
2005-01-31
影响因子：
4
通讯作者：
Aydil, ES
中科院分区：
文献类型：
--
作者：
Baxter, JB;Aydil, ES
我们描述了一种基于ZnO纳米晶的染料敏化太阳能电池的设计和性能。采用具有分支结构的ZnO纳米线作为宽带隙半导体来构建染料敏化太阳能电池，其能量转换效率为0.5%，内量子效率为70%。纳米线在光生点和导电基底之间为电子提供直接导电路径，并且与烧结纳米颗粒的膜相比可以提供改善的电子传输。该器件的光捕获效率低于10%，表明通过增加纳米线表面积可以将电流密度和效率提高一个数量级。(C)2005年美国物理学会。
We describe the design and performance of a ZnO nanowire-based dye-sensitized solar cell. ZnO nanowires with a branched structure were employed as the wide-band-gap semiconductor to construct dye-sensitized solar cells which exhibit energy conversion efficiencies of 0.5% with internal quantum efficiencies of 70%. The nanowires provide a direct conduction path for electrons between the point of photogeneration and the conducting substrate and may offer improved electron transport compared to films of sintered nanoparticles. The devices have light harvesting efficiencies under 10%, indicating that current densities and efficiencies can be improved by an order of magnitude by increasing the nanowire surface area. (C) 2005 American Institute of Physics.