Design concept of a hybrid photo-voltaic/thermal conversion cell for mid-infrared light energy harvester
Design concept of a hybrid photo-voltaic/thermal conversion cell for mid-infrared light energy harvester
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DOI：
10.1364/ome.7.003484
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发表时间：
2017-10-01
影响因子：
2.8
通讯作者：
Juodkazis, Saulius
中科院分区：
文献类型：
--
作者：
Nishijima, Yoshiaki;Komatsu, Ryosuke;Juodkazis, Saulius
在尽可能广泛的光谱范围内收集以电磁（EM）波（太阳、微米和毫米光谱波长）形式发射的热损失能量是开发可持续能源解决方案的主要目标。太阳能电池和整流天线由于热生成以及由于在光电转换中未利用的透明窗口（对于Si，λ> 1100 nm）而遭受不可避免的能量损失。一个混合光伏/热电转换系统作为一个典型的硅太阳能电池的扩展，并展示了额外的能力，在整个太阳能光谱收集能量。纳米纹理硅-黑-Si-用于降低电池表面的反射率，并且在下面添加Ge-Sn层以促进太阳光谱的IR翼的吸收。通过热-电贡献获得了对由光伏转换产生的电压的高达7%的改善。(C)2017美国光学学会
Harvesting the thermal loss energy emitted as electro-magnetic (EM) waves (at solar, micrometer and millimeter spectral wavelengths) over the broadest possible spectral range is a major target in the development of sustainable energy solutions. Solar cells and rectennas suffer unavoidable energy losses due to heat generation as well as due to the transparency window (lambda > 1100 nm for Si), which is not utilized in photo-electrical conversion. A hybrid photovoltaic/thermoelectric conversion system is presented as an extension of a typical Si solar cell and demonstrates additional capability in harvesting energy over the entirety of the solar spectrum. Nano-textured silicon - black-Si - was used to reduce reflectivity of the cell surface and a Ge-Sn layer was added below to facilitate absorption over the IR wing of the solar spectrum. An up to 7% improvement to the voltage generated by photo-voltaic conversion was obtained via the thermal-to-electrical contribution. (C) 2017 Optical Society of America