Ultraviolet upconversion luminescence in Y2O3:Yb3+,Tm3+nanocrystals and its application in photocatalysis
β Scribed by Tanggang Li; Suwen Liu; Haiping Zhang; Enhua Wang; Lingjun Song; Ping Wang
- Publisher
- Springer
- Year
- 2010
- Tongue
- English
- Weight
- 409 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0022-2461
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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
## Abstract Tm^3+^βdoped Y~2~O~3~ nanocrystals were prepared via hydrothermal conditions at high autogenous pressure (ca. 40 MPa) using batch reactors at 220 and 250 Β°C for very short periods of reaction time (10 min). The asβprepared materials were identified as Y(OH)~3~ nanoparticles. The precurs