Journal
RSC ADVANCES
Volume 4, Issue 88, Pages 47556-47563Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra05492j
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Funding
- NSFC (National Natural Science Foundation of China) [51272109, 51002041, 11104024, 11274057, 11104023, 11374044]
- Fundamental Research Funds for the Central Universities [3132014327, 3132013100]
- State Key Development Program for Basic Research of China (973 Program) [2012CB626801]
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Temperature sensing properties and laser induced thermal effects in rare earth doped materials could inspire some critical applications in accurate temperature detection and thermal therapy. In this paper, a microwave-assisted hydrothermal method was used to synthesize rare earth doped NaY(WO4)(2) microstructures. Microstructured NaY(WO4)(2) samples with various morphologies were derived by controlling the amount of trisodium citrate in reaction solution. Microscopic image and crystal structure of the obtained samples were characterized by XRD, SEM and HRTEM. It was found that all the received samples exhibited pure phase, and the Cit(3-)/Y3+ ratio considerably influenced the morphology but the rare earth concentration did not. The temperature sensing performance for the samples with various morphologies and different rare earth concentrations was evaluated. It was confirmed that both the morphology and doping concentration slightly affected the temperature property. Furthermore, based on the temperature sensing technique of Er3+ doped materials, the 980 nm laser irradiation induced thermal effect in NaY(WO4)(2) microstructures was studied. It was also found that the sample temperature was very sensitive to the sample morphology and the doping concentration of Er3+ and Yb3+.
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