Efficient nanocoax-based solar cells
Efficient nanocoax-based solar cells
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DOI：
10.1002/pssr.201004154
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发表时间：
2010-07-01
影响因子：
2.8
通讯作者：
Eminian, C.
中科院分区：
文献类型：
--
作者：
Naughton, M. J.;Kempa, K.;Eminian, C.
大多数薄膜太阳能电池的功率转换效率受到相互竞争的光学和电子限制的影响，在这些限制下，电池必须足够厚以收集光线，但又必须足够薄以有效地提取电流。在这里，我们介绍一种纳米尺度的太阳能架构，灵感来自于一个著名的无线电技术概念--同轴电缆，它自然地解决了这个“粗-细”的难题。光学厚度和电子厚度的非晶硅“纳米同轴”电池的效率在8%的范围内，比迄今任何纳米结构薄膜太阳能电池都要高。此外，电池的薄性降低了斯塔布勒-龙斯基光致退化效应，这是此类传统太阳能电池的主要问题。这种纳米同轴电缆代表了低成本、高效率太阳能发电的新平台。(C)2010年威利-VCH Verlag有限公司，温海姆KGaA
The power conversion efficiency of most thin film solar cells is compromised by competing optical and electronic constraints where in a cell must be thick enough to collect light yet thin enough to efficiently extract current. Here we introduce a nanoscale solar architecture inspired by a well-known radio technology concept, the coaxial cable, that natuall resolves this "thick-thin" conundrum. Optically thick and electronically thin amorphous silicon "nanocoax" cells are in thhe range of 8% efficiency, higher than any nanostructured thin film solar cell to date moreover, the thin nature of the cells reduces the staebler-Wronski light-induced degradation effect a major problem with conventional solar cells of this type. This nanocoax represent a new platform for low cost, high efficiency solar power. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim