Manipulations of thermal emission by amp;#946;-FeSisub2/sub thin films and nanostructures

摘要

Thermophotovoltaic power generation has recently attracted considerable attention as a means to use waste heat.In order to improve the efficiency of TPV power generation, it is necessary to develop spectrally and directionallyselective thermal emitters. By taking advantage of high refractive index of β-FeSi2 (n ∼ 5), we have successfullydemonstrated that the spectrally selective emitter is fabricated by sputtering a β-FeSi2 thin film on a polished304 stainless steel substrate. A noble bottom up process to fabricate periodic array of β-FeSi2 nanopillars, whichare necessary for the directionally selective emission, will be also presented.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.