WebFeb 10, 2011 · Results indicated that at temperatures between 600 and 1000°C and wavelengths between 1500 and 2100 nm emissivity was sensitive to the sample porosity. It also appeared to be sensitive to the thickness of the oxide layer on the composites. The emissivity was not very sensitive to temperature in this region. WebThe infrared normal spectral emissivity of microstructured silicon prepared by femtosecond laser was measured for the middle infrared waveband at temperature range 100 to 200°C. Compared to that of flat silicon, emissivity was enhanced over the entire wavelength range. For a sample with different spike height, the minimum emissivity at a …

Emissivity of microstructured silicon. - Abstract - Europe …

WebApr 19, 2024 · Huang Z, Carey JE, Liu M, Guo X, Mazur E, Campbell JC (2006) Microstructured silicon photodetector. Appl Phys Lett 89(3):033506 ... Billman C, … Webments of temperature-dependent spectral emissivity of silicon. Using a spectrophotometer, Sato mea-sured the emissivity (ε) of comparatively pure (resistivity ρ 15 Ω-cm at 300 K) and heavily phosphorous-doped (ρ 7 10 3 Ω-cm at 300 K) silicon in the temperature range of 543–1,073 K and in the spectral region from visible to 15 µm. city map of ironwood mi

Spectral Emissivity of Silicon - IOPscience

WebThe emissivity of silicon was observed in the spectral region from 0.4 to 15 µ at various temperatures from 340°K to 1070°K by using two n-type specimens with the resistivity of 15 ohm-cm and 7 × 10 -3 ohm-cm at 300°K, respectively. The thermal radiation of silicon consists of three types due to band-to-band transition, free carriers and ... WebNov 1, 2011 · The infrared normal spectral emissivity of microstructured silicon prepared by femtosecond laser was measured for the middle infrared waveband at temperature … city map of janesville wisconsin