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- Title
Comparison of upconversion luminescent properties and temperature sensing behaviors of β-NaYF:Yb/Er nano/microcrystals prepared by various synthetic methods.
- Authors
Xi, Junhua; Ding, Mingye; Dai, Jianbin; Pan, Yajing; Chen, Daqin; Ji, Zhenguo
- Abstract
In this paper, Yb/Er co-doped hexagonal NaYF have been successfully synthesized by solvothermal, thermal decomposition, hydrothermal and molten salt method, respectively. The crystal structures, particle morphologies, sizes and corresponding upconversion luminescent properties of β-NaYF:Yb/Er nano/microcrystals are systemically studied. It is interesting to observed that the temperature-dependent UC luminescent properties of β-NaYF:20 %Yb, 2 %Er samples are strongly related to their synthesis methods. Comparison of the upconversion luminescence and thermal sensitivity between the β-NaYF:Yb/Er samples reveals that β-NaYF:Yb/Er sub-microplates synthesized by thermal decomposition method have much stronger green emission intensity, better luminescent thermal stability and higher temperature sensitivity. This findings are relevant to the application of β-NaYF:Yb/Er in optical temperature sensors and to the further understanding of the UC luminescent mechanism.
- Subjects
CHEMICAL synthesis; HYDROTHERMAL synthesis; FUSED salts; CRYSTAL structure; CRYSTAL morphology; PHOTON upconversion
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 8, p8254
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-016-4832-7