Size-tunable luminescence in Eu3+ doped nanocomposite containing In2O3 quantum dots

作者：Yu, Yunlong^*; Guan, Xiangfeng; Li, Xiaoyan; Li, Wei^*; Jiang, Linqin; Chen, Dagui

来源：Journal of Alloys and Compounds, 2016, 672: 265-270.

DOI：10.1016/j.jallcom.2015.11.016

• Optical materials
• Glass ceramics
• Energy transfer
• Optical properties

Eu3+ doped nanocomposite containing In2O3 quantum dots (QDs) was successfully fabricated by a melt quenching technique. The crystallization process of cubic In2O3 phase was revealed by X-ray diffraction and transmissions electron microscopy. The size of In2O3 QDs can be well tuned by adjusting treatment duration and a size-tunable In2O3 emission was obtained. Impressively, In2O3 QDs can act as strong sensitizers for Eu3+ emission, and the emission intensity enhances up to 26 times with respect to the one without In2O3. The enhancement factor gradually decreases with increasing In2O3 QDs size. Analyzing the excitation and emission spectra, a possible energy transfer process from In2O3 QDs to Eu3+ ions was established. These results indicate that In2O3 QDs with suitable size have great potential for use as sensitizers of Eu3+ ions in high-performance luminescent converter materials.

• 出版日期2016-7-5
• 单位福建工程学院