Thermal and optical properties of porous silicon

Abstract

Thermal diffusivity and optical absorption have been investigated for porous silicon, at room temperature, using photoacoustic spectroscopy. The experimental results obtained conform well with the existing studies recently published. The value obtained for thermal diffusivity is 0.045 ± 0.002 cm²/s.The absorption onsets show energy structures, differing from the ordinary semiconductor of bulk type

Quantum Well Thermoelectrics for Converting Waste Heat to Electricity

“…The cost of cooling modules will be somewhat less on a per watt basis. The reason for the predicted lower cost of quantum well devices is due both to their higher efficiency [11][12][13][14] and the fact that they are made from lower cost raw materials than bulk thermoelectrics.…”