Preparation and upconversion luminescence of nanocrystalline Gd2O3: Er3+, Yb3+
โ Scribed by Yanhong Li; Guangyan Hong; Yongming Zhang; Caiyun Dai; Shuping Dai
- Book ID
- 107403682
- Publisher
- Wuhan University of Technology
- Year
- 2008
- Tongue
- English
- Weight
- 237 KB
- Volume
- 23
- Category
- Article
- ISSN
- 1000-2413
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## Abstract Yb^3+^/Er^3+^โcodoped Gd~2~SiO~5~ (Yb,Er:GSO) single crystal was grown by the Czochralski method. The upconversion properties of the crystal under 940โnm excitation were investigated. Intense emission bands centered at 521, 548, and 652โnm corresponding to the transitions ^2^H~11/2~โโโ^
The influence of Eu 3+ on the upconversion (UC) fluorescence of Er 3+ in Y 2 O 3 :Er 3+ , Yb 3+ nanocrystals was investigated. Room-temperature UC spectra show that the intensity ratio of red to green lights was increased from 8.6 to 19.3 with 1.0 mol% Eu 3+ doping. Additionally, with the increase o