Fabrication of thin-film thermoelectric generators with ball lenses for conversion of near-infrared solar light
Fabrication of thin-film thermoelectric generators with ball lenses for conversion of near-infrared solar light
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DOI：
10.7567/jjap.56.06gn06
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发表时间：
2017-06-01
影响因子：
1.5
通讯作者：
Hata, Seiichi
中科院分区：
文献类型：
--
作者：
Ito, Yoshitaka;Mizoshiri, Mizue;Hata, Seiichi
我们设计并制作了球透镜薄膜热电发电器，利用色差分离可见光和近红外（NIR）太阳光。透射的可见光用作日光，NIR光用于热电发电。利用光线追迹法将太阳光分解为可见光和近红外光。92.7%的可见光用作日光，9.9%的近红外光用于热电发电。然后，TEG表面的pn结的温度差为0.71 K，这是通过使用有限元法的热传导分析确定的。使用光刻和沉积工艺制造薄膜TEG。当太阳光（A.M.1.5）照射到TEG时，开路电压和最大功率分别为4.5V/m（2）和51 μ W/m（2）。这些TEG有望用作物联网传感器的能源供应。(C)2017日本应用物理学会
We designed and fabricated thin-film thermoelectric generators (TEGs) with ball lenses, which separated visible light and near-infrared (NIR) solar light using a chromatic aberration. The transmitted visible light was used as daylight and the NIR light was used for thermoelectric generation. Solar light was estimated to be separated into the visible light and NIR light by a ray tracing method. 92.7% of the visible light was used as daylight and 9.9% of the NIR light was used for thermoelectric generation. Then, the temperature difference of the pn junctions of the TEG surface was 0.71 K, determined by heat conduction analysis using a finite element method. The thin-film TEGs were fabricated using lithography and deposition processes. When the solar light (A.M. 1.5) was irradiated to the TEGs, the open-circuit voltage and maximum power were 4.5 V/m(2) and 51 mu W/m(2), respectively. These TEGs are expected to be used as an energy supply for Internet of Things sensors. (C) 2017 The Japan Society of Applied Physics