Crystalline-phase-dependent cathodoluminescence of Li-doped Gd2O3:Eu3+ thin-film phosphors
Creators
- 1. Pukyong National University, Busan (Korea, Republic of)
- 2. Korea Basic Science Institute, Busan (Korea, Republic of)
- 3. Dong Eui University, Busan (Korea, Republic of)
- 4. Sillia University, Busan (Korea, Republic of)
Description
Li-doping has been of interest to improve the luminescent characteristics of thin-film phosphors. Gd2O3:Eu3+ and Li-doped Gd2O3:Eu3+ films have been grown on Al2O3 (0001) substrates by using a pulsed laser deposition technique. Li-doping not only made the cubic crystalline phase more dominant compared to the monoclinic phase but also improved the grain size and surface roughness. The crystalline phases of both Gd2O3:Eu3+ and Li-doped Gd2O3:Eu3+ films depended very much on the oxygen pressure and affected the cathodoluminescent brightness of the films. At 200 mTorr, the monoclinic phase for the Li-doped Gd2O3:Eu3+ films was almost not present, and the cathodoluminescent brightness of the Li-doped Gd2O3:Eu3+ films was increased by a factor of 1.2 in comparison with that of the Gd2O3:Eu3+ films.
Additional details
Publishing Information
- Journal Title
- Journal of the Korean Physical Society
- Journal Volume
- 49
- Journal Issue
- 3
- Series
- 18 refs, 8 figs
- Journal Page Range
- p. 855-859
- ISSN
- 0374-4884
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 43010927
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CATHODOLUMINESCENCE; CRYSTAL DOPING; ENERGY BEAM DEPOSITION; EUROPIUM IONS; GADOLINIUM OXIDES; ION MICROSCOPY; LITHIUM IONS; PHOSPHORS; SCANNING ELECTRON MICROSCOPY; THIN FILMS
- Descriptors DEC
- CHALCOGENIDES; CHARGED PARTICLES; DEPOSITION; ELECTRON MICROSCOPY; EMISSION; FILMS; GADOLINIUM COMPOUNDS; IONS; LUMINESCENCE; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; RARE EARTH COMPOUNDS; SURFACE COATING