论文标题
高视图因子的热伏转换效率测量
Thermophotovoltaic conversion efficiency measurement at high view factors
论文作者
论文摘要
尚未确定一种测量嗜热伏（TPV）效率的标准化方法，这使得报告的结果难以比较。此外，迄今为止报告的大多数TPV效率是使用小视图因子（即大细胞到发射极距离）获得的，因此通常低估了串联电阻的影响，并且光腔效应，即在EMITTER和细胞之间进行的多个反射效应，并未在EMITTER和细胞之间进行实验。在这项工作中，我们提出了一个实验设置，能够通过使用小的发射极到细胞距离（<1 mm）来测量高视图因子下的TPV效率（高达0.98）。这可以比以前的工作更准确地直接测量TPV效率。结果，对于INGAAS TPV细胞，已获得了26.4+-0.1％的TPV效率，功率密度为4.3+-0.8 w/cm2。
A standardized method for measuring thermophotovoltaic (TPV) efficiency has not been yet established, which makes the reported results difficult to compare. Besides, most of the TPV efficiencies reported to date have been obtained using small view factors, i.e., large cell-to-emitter distances, so the impact of the series resistance is usually underestimated, and the optical cavity effects, i.e., the multiple reflections taking place between the emitter and the cell, are not accounted for experimentally. In this work, we present an experimental setup able to measure the TPV efficiency under high view factors (up to 0.98), by using small emitter-to-cell distances (< 1 mm). This allows a more accurate direct measurement of the TPV efficiency at higher power densities than previous works. As a result, a TPV efficiency of 26.4+-0.1 % and a power density of 4.3+-0.8 W/cm2 have been obtained for an InGaAs TPV cell with a back surface reflector irradiated by a graphite thermal emitter at 1592 C.
