运用铬钨合金提升四层膜系结构的宽光谱光热转换效率

摘要

A composition dependent model based on the Cr-W alloy structure has been studied to make it possible to be put into practical application.In terms of the optical properties of the Cr-W alloy with defined composition,a simpler 4-layered structure with single Cr-W alloy absorption layer has been designed to show the merit of high photon-to-heat conversion efficiency in the broad spectral region of 300 ～ 1000 nm.%基于铬钨合金能带结构的研究;得到了可表述任意铬钨合金组分光学性质的数学模型;并将其应用于实际光热器件特性分析.根据由模型获得特定组分铬钨合金的光学性质;设计了一个含有单层铬钨合金吸收层的四层膜结构;显示出优异的宽光谱(300～1000 nm)光热转换性能.