Abstract
Thin films of YCa 4 O(BO 3 ) 3 (YCOB)-based new luminescent materials were explored by the combinatorial pulsed laser deposition (PLD) method which enabled us to fabricate continuous composition spread film libraries. Strong red and green luminescence were found in the Y 1-x Eu x COB (0 ≤ x ≤ 1), (YEuCOB) and Y 1-y Tb y COB (0 ≤ y ≤ 1) (YTbCOB) films, respectively. The film libraries were characterized by photoluminescence (PL), PL decay, an electron-probe microanalyzer and an electron diffraction analysis. The luminescent intensities in the amorphous film libraries strongly depended on the chemical composition of each rare-earth (RE) ion. The optimum concentration of rare-earth ions in YEuCOB and YTbCOB were experimentally determined to be Eu = 7.5% and Tb = 20-30%, respectively.
Original language | English |
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Pages (from-to) | 2493-2496 |
Number of pages | 4 |
Journal | Applied Surface Science |
Volume | 252 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2006 Jan 21 |
Externally published | Yes |
Event | Proceedings of the Third Japan-US Workshop on Combinatorial Material Science and Technology CMST-e SI - Duration: 2004 Dec 7 → 2004 Dec 10 |
Keywords
- Combinatorial pulsed laser deposition method
- Composition spread
- Luminescence
- YCa O(BO ) -based systems
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films