Photonic crystal resonant cavity for thermophotovoltaic applications
Photonic crystal resonant cavity for thermophotovoltaic applications
复制标题
用于热光伏应用的光子晶体谐振腔
DOI：
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复制
发表时间：
2011
期刊：
影响因子：
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通讯作者：
T. Vandervelde
中科院分区：
文献类型：
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作者：
C. Shemelya;T. Vandervelde
利用热光伏发电 (TPV) 有效地将热量转化为可用能源的能力一直是多年来的研究主题。由于最近微制造的进步，TPV 和光子晶体 (PhC) 重新成为人们关注的主题。特别是，PhC 已被证明可以提高红外光电探测器的光子到电流的转换效率。在这里，光子晶体和背反射平面被用来通过创建谐振腔来提高 TPV 电池的效率。结果是光子和激子之间的相互作用时间增加，导致电子/空穴对产生增加。由欧姆接触材料中的 Si3N4 棒组成的模拟 2D 光子晶体已证明 GaSb TPV 电池的吸收率可能增加 81%。
The ability to efficiently transform heat into a usable energy using thermophotovoltaics (TPV) has been a topic of research for many years. Due to recent micro fabrication advances, TPV and photonic crystals (PhC) has been the subject of renewed interest. In particular, PhC have been shown to increase the efficiency of photon to current conversions for infrared photodetectors. Here, Photonic crystals and a back reflecting plane have been employed to increase the efficiency of TPV cells by creating a resonant cavity. The result is an increased interaction time between photons and excitons leading to an increase in electron/hole pair generation. A simulated 2D photonic crystal consisting of Si3N4 rods in an ohmic contact material has demonstrated a possible 81% increase in absorption for a GaSb TPV cell.