[16p-P06-1~6] 13.2 Exploratory Materials, Physical Properties, Devices

[16p-P06-3] Effect of carrier density in n-Mg₂Si substrate on the output characteristics of Mg₂Si TPV cells fabricated by thermal diffusion

〇Takumi Shimizu¹, Kosuke Shimano¹, Sakane Shunya¹, Udono Haruhiko¹ (1.Ibaraki Univ.)

Keywords:

Thermophotovoltaic,TPV,Mg2Si

Thermophotovoltaic (TPV) power generation is a method of generating electricity by irradiating radiation from a heat source onto a power generation cell. Recently, TPV cells with a power generation efficiency of over 40% have been reported, suggesting a theoretical efficiency of over 50%, and are attracting increasing attention. We have previously reported that photovoltaic power can be generated from TPV cells using a substrate cut from a 2-inch n-type Mg₂Si single-crystal wafer, but the output characteristics need to be improved. In this report, the influence of substrate carrier concentration on the output characteristics of TPV cells is investigated.