Review on photonic properties of nanowires for photovoltaics
Review on photonic properties of nanowires for photovoltaics
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DOI：
10.1364/oe.24.017345
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发表时间：
2016-07-25
期刊：
影响因子：
3.8
通讯作者：
Jagadish, C.
中科院分区：
文献类型：
--
作者：
Mokkapati, S.;Jagadish, C.
III-V半导体纳米线由于其形状各向异性和高折射率，具有光学天线的作用。与平面材料相比，类似天线的行为改变了纳米线的吸收和发射性能。与同等体积的平面材料相比，纳米线更有效地吸收光，导致更高的短路电流密度。与平板太阳能电池相比，纳米线的修饰发射有可能增加纳米线太阳能电池的开路电压。为了获得高效率的纳米线太阳能电池，控制纳米线的表面态密度和掺杂是必不可少的。我们综述了纳米线太阳能电池的物理和在解决纳米线的表面复合和掺杂方面的进展，重点介绍了GaAs和InP材料。(C)2016年度美国光学学会
III-V semiconductor nanowires behave as optical antennae because of their shape anisotropy and high refractive index. The antennae like behavior modifies the absorption and emission properties of nanowires compared to planar materials. Nanowires absorb light more efficiently compared to an equivalent volume planar material, leading to higher short circuit current densities. The modified emission from the nanowires has the potential to increase the open circuit voltage from nanowire solar cells compared to planar solar cells. In order to achieve high efficiency nanowire solar cells it is essential to control the surface state density and doping in nanowires. We review the physics of nanowire solar cells and progress made in addressing the surface recombination and doping of nanowires, with emphasis on GaAs and InP materials. (C) 2016 Optical Society of America