Broadband perfect light trapping in the thinnest monolayer graphene-MoS2 photovoltaic cell: the new application of spectrum-splitting structure.
Broadband perfect light trapping in the thinnest monolayer graphene-MoS2 photovoltaic cell: the new application of spectrum-splitting structure.
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最薄单层石墨烯-MoS2光伏电池中的宽带完美光捕获：光谱分裂结构的新应用
DOI：
10.1038/srep20955
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发表时间：
2016-02-11
影响因子：
4.6
通讯作者：
Liu JT
中科院分区：
文献类型：
--
作者：
Wu YB;Yang W;Wang TB;Deng XH;Liu JT
从理论上研究了具有光谱分裂结构的楔形微腔中单层石墨烯-二硫化钼光伏（GM-PV）电池的光吸收。 GM-PV电池比传统光伏电池薄三倍，在宽波长范围内表现出高达98%的光吸收率。该速率超过了太阳能电池中纳米光子光捕获的基本极限。探讨了缺陷层厚度、GM-PV 电池在微腔中的位置、入射角和透镜像差对 GM-PV 电池光吸收率的影响。尽管存在这些影响，GM-PV电池在目前的技术下仍然可以实现至少90%的光吸收率。我们的建议提供了不同的方法来设计光捕获结构和应用光谱分裂系统。
The light absorption of a monolayer graphene-molybdenum disulfide photovoltaic (GM-PV) cell in a wedge-shaped microcavity with a spectrum-splitting structure is investigated theoretically. The GM-PV cell, which is three times thinner than the traditional photovoltaic cell, exhibits up to 98% light absorptance in a wide wavelength range. This rate exceeds the fundamental limit of nanophotonic light trapping in solar cells. The effects of defect layer thickness, GM-PV cell position in the microcavity, incident angle, and lens aberration on the light absorptance of the GM-PV cell are explored. Despite these effects, the GM-PV cell can still achieve at least 90% light absorptance with the current technology. Our proposal provides different methods to design light-trapping structures and apply spectrum-splitting systems.