Fabrication of CuO-based antireflection structures using self-arranged submicron SiO2 spheres for thermoelectric solar generation
Fabrication of CuO-based antireflection structures using self-arranged submicron SiO2 spheres for thermoelectric solar generation
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DOI：
10.7567/jjap.55.06gp07
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发表时间：
2016-05
影响因子：
1.5
通讯作者：
T. Kondo;M. Mizoshiri;M. Mikami;Y. Itou;J. Sakurai;S. Hata
中科院分区：
文献类型：
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作者：
T. Kondo;M. Mizoshiri;M. Mikami;Y. Itou;J. Sakurai;S. Hata
我们在热电发电机（TEG）的热侧制造了抗反射结构（ARSs），以低反射能量损失吸收近红外（NIR）太阳光。首先，采用严格的耦合波分析方法，设计了由CuO薄膜包覆半球阵列组成的ars。仿真结果表明，在200 nm的光栅周期内，反射损耗降至6.7%。然后，利用自排列的亚微米SiO2球在玻璃基板上制备ars，并涂覆CuO薄膜。最后，通过评价热侧有ars的TEG的发电性能，研究了ars对近红外太阳能发电的影响。与热侧有CuO平面薄膜的TEG相比，ars使冷热侧温差增大了约1.4倍。基于cuo的ars有效吸收了近红外光。
We fabricated antireflection structures (ARSs) on the hot side of a thermoelectric generator (TEG) to absorb near-infrared (NIR) solar light with low reflective energy loss. First, the ARSs, composed of a CuO thin-film coated hemisphere array were designed using rigorous coupled wave analysis. Reflective loss was reduced to 6.7% at a grating period of 200 nm, as determined by simulation. Then, the ARSs were fabricated on a glass substrate using self-arranged submicron SiO2 spheres, following the coating of a CuO thin film. Finally, the effect of the ARSs on NIR solar light generation was investigated by evaluating the generation properties of the TEG with the ARSs on the hot side. In comparison with the TEG with the CuO flat thin film on the hot side, the ARSs increased the temperature difference between the hot and cold sides by approximately 1.4 times. The CuO-based ARSs absorbed NIR solar light effectively.