ABSTRACT

Bulk crystalline silicon is a good thermal conductor, with a thermal conductivity of 156 W/(m∙K) (Glassbrenner and Slack 1964), which is comparable to that of copper (400 W/(m∙K)). However, porous silicon has a low thermal conductivity, which can reach values up to 100-1000 times lower than that of crystalline silicon, depending on its morphology.