Light absorption of silica nanoparticles
- 5 April 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 63 (16) , 161402
- https://doi.org/10.1103/physrevb.63.161402
Abstract
The light absorption of silica nanoparticles generated in a flame has been measured in visible light. It was revealed that the frequency dependence of the light absorption coefficient is nonexponential. Its absolute value in the forbidden band was found to be unusually high. This behavior of light absorption is ascribed to a narrowing of the energy gap due to a high concentration of structural defects that appear during particle generation and growth at high temperatures.Keywords
This publication has 14 references indexed in Scilit:
- On Condensation Growth of Oxide Particles During Gas-Phase Combustion of MetalsCombustion Science and Technology, 2000
- CONTROL OF SIZE AND MORPHOLOGY OF NANO PARTICLES USING CO2 LASER DURING FLAME SYNTHESISJournal of Aerosol Science, 2000
- Absorption edge in silica glassPhysical Review B, 2000
- Two-photon-excited luminescence and defect formation in SiO2 nanoparticles induced by 6.4-eV ArF laser lightPhysical Review B, 2000
- The Urbach rule for the PbO-SiO2 glassesPhysics of the Solid State, 2000
- Low temperature dependence of photoluminescence band near 2.0 eV in silica glassJournal of Applied Physics, 2000
- Development of a wide-temperature range VUV and UV spectrophotometer and its applications to silica glassJournal of Non-Crystalline Solids, 1999
- Disorder, defects, and optical absorption inandPhysical Review B, 1999
- Temperature dependence of the optical-absorption edge inthin filmsPhysical Review B, 1998
- Flame aerosol synthesis of ceramic powdersProgress in Energy and Combustion Science, 1998