Dual-band photoluminescence of lead selenide quantum dots doped oxyfluoride glass-ceramics containing BaF2 nanocrystals
SCIE
SCOPUS
- Title
- Dual-band photoluminescence of lead selenide quantum dots doped oxyfluoride glass-ceramics containing BaF2 nanocrystals
- Authors
- Yin, QY; Zhang, JH; Liu, C; Xie, J; So, BJ; Heo, J; Zhao, XJ
- Date Issued
- 2014-02-01
- Publisher
- Elsevier B.V.
- Abstract
- In this work, PbSe QDs were precipitated in oxyfluoride glass-ceramics containing BaF2 nanocrystals. Tunable and broad absorption and photoluminescence from PbSe QDs doped glass-ceramics were observed in the near-infrared wavelength range. When the glasses were heat-treated at temperatures below 560 degrees C using one-step heat-treatment schedule, single photoluminescence band was observed from each sample. Upon high temperature (560 degrees C or 570 degrees C) one-step or two-step heat-treatment, dual-band photoluminescence was observed. These two photoluminescence bands in each spectrum were separated by a gap of similar to 110-150 meV, and as a result, effective full width at half maximum as large as (sic)500 nm was recorded. (C) 2013 Elsevier B.V. All rights reserved.
- Keywords
- PbSe quantum dots; Glass ceramics; Broad-band photoluminescence; Dual-band photoluminescence; Quantum confinement effect; PBSE NANOCRYSTALS; OPTICAL GAIN; EMISSION; GENERATION; GROWTH; LIGHT; TM3+
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15137
- DOI
- 10.1016/J.JNONCRYSOL.2013.11.019
- ISSN
- 0022-3093
- Article Type
- Article
- Citation
- Journal of Non-Crystalline Solids, vol. 385, page. 136 - 141, 2014-02-01
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- There are no files associated with this item.
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