Resonant indirect excitation of Gd3+ in AlN thin films
Creators
- 1. Department of Electrical and Electronic Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501 (Japan)
- 2. YUMEX INC., 400 Itoda, Yumesaki, Himeji, Hyogo 671-2114 (Japan)
- 3. Hyogo Prefectural Institute of Technology, 3-1-12 Yukihira, Suma, Kobe 654-0037 (Japan)
Description
We studied the efficient indirect excitation of Gd3+ ions in AlN thin films. C-axis oriented polycrystalline thin films of Al0.997Gd0.003N/AlN were grown on fused silica substrates using a reactive radio-frequency magnetron sputtering technique. The intra-orbital electron transition in Gd3+ showed a narrow luminescence line at 3.9 eV. The photoluminescence (PL) excitation (PLE) spectrum exhibited a peak originating from efficient indirect energy transfer from the band edge of AlN to Gd3+ ions. The PLE peak shifted and the PL intensity showed a dramatic change when the AlN band gap was varied by changing the temperature. Energy scanning performed by changing the band-gap energy of AlN with temperature revealed several resonant channels of energy transfer into the higher excited states of Gd3+
Additional details
Identifiers
- DOI
- 10.1063/1.4874745;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 115
- Journal Issue
- 17
- Journal Page Range
- p. 173508-173508.6
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45094681
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ALUMINIUM NITRIDES; ELECTRONS; EMISSION SPECTRA; ENERGY TRANSFER; EXCITATION; EXCITED STATES; GADOLINIUM IONS; PHOTOLUMINESCENCE; POLYCRYSTALS; RADIOWAVE RADIATION; SILICA; SPUTTERING; SUBSTRATES; THIN FILMS
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CHARGED PARTICLES; CRYSTALS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; EMISSION; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; FERMIONS; FILMS; IONS; LEPTONS; LUMINESCENCE; MINERALS; NITRIDES; NITROGEN COMPOUNDS; OXIDE MINERALS; PHOTON EMISSION; PNICTIDES; RADIATIONS; SPECTRA
Optional Information
- Notes
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