Broadband omnidirectional infrared nanophotonic spectral controller for GaInAsSb thermophotovoltaic cell
Broadband omnidirectional infrared nanophotonic spectral controller for GaInAsSb thermophotovoltaic cell
复制标题
用于GaInAsSb热光伏电池的宽带全向红外纳米光子光谱控制器
DOI：
10.1016/j.solmat.2022.111986
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发表时间：
2022
影响因子：
6.9
通讯作者：
Liangliang Tang
中科院分区：
文献类型：
--
作者：
Xincun Peng;Bin Tang;Renbo Wang;Jijun Zou;Wenjuan Deng;Jiajun Xiao;Luhao Yang;Zhuming Liu;Liangliang Tang
针对Ga0.84In0.16As0.14Sb0.86TPV电池，设计了基于alas0.06 sb0.94纳米柱（NP）方阵和铝背表面反射器（BSR）的光谱控制器（SC）。分析了NP-BSR纳米光子谐振器的多重光共振特性，表明其具有良好的光管理性能。在发射体温度为1000℃时，优化后的NP-BSR SC获得了90%的入射角和偏振光加权光谱效率。基于光电耦合仿真分析了TPV电池的光伏性能。结果表明，NP-BSRs的性能明显优于普通的四分之一波长增透涂层。其中，np - bsr具有较强的光集中能力，可用于提高超薄膜结构TPV电池的输出功率密度。对于0.6 μm的有源层，在发射极温度为1000℃的条件下，NP-BSR TPV电池的输出功率密度超过1W.cm−2，转换效率接近30%。
Spectral controllers (SC) based on the square array of AlAs0.06Sb0.94nanopillars (NP) and the aluminum back surface reflectors (BSR) are designed for the Ga0.84In0.16As0.14Sb0.86TPV cells. The multiple optical resonance characteristics of the NP-BSR nanophotonic resonators are analyzed, which show the excellent light management performances. For the emitter temperature of 1000 °C, the angle-of-incidence and polarization-of-light weighted spectral efficiency of 90% is obtained by the optimized NP-BSR SC. Photovoltaic performances of the TPV cells are analyzed based on the coupled optical and electrical simulations. The results show the NP-BSRs perform substantially better than the normal quarter-wavelength anti-reflection coatings. In particular, the NP-BSRs show the strong light concentration ability and can be used to enhance the output power density of the ultra-thin film structured TPV cells. For the active layer of 0.6 μm, the output power density of over 1W.cm−2and the conversion efficiency of nearly 30% are obtained by the NP-BSR TPV cell under the emitter temperature of 1000 °C.