Optical properties and lasing of ZnO nanoparticles synthesized continuously in supercritical fluids
- Optical properties and lasing of ZnO nanoparticles synthesized continuously in supercritical fluids
- 한노수; 심형섭; 서주희; 박성민; 민병권; 김재훈; 송재규
- ZnO; supercritical fluids
- Issue Date
- Chemical physics letters
- VOL 505, NO 1-3, 51-56
- Optical properties of zinc oxide (ZnO) nanoparticles prepared in supercritical methanol and supercritical
water were investigated. Interstitial zinc and oxygen vacancy were the major defects in the ZnO nanoparticles
synthesized in supercritical methanol. The addition of oleic acid as a surface modifier resulted in
the isolation of the nanoparticles and the removal of interstitial zinc. Lasing was observed with sharp
longitudinal modes and a superlinear increase in the emission intensity of the ZnO nanowires synthesized
in supercritical water. The band gap renormalization due to the electron–hole plasma induced a
red-shift in the emission band, whereas the individual longitudinal modes were blue-shifted due to a
change in refractive index.
- Appears in Collections:
- KIST Publication > Article
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.