1. Crystalline Hollow Microrods for Site-Selective Enhancement of Nonlinear Photoluminescence.
- Author
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Chen, Bing, Kong, Wei, Liu, Yong, Lu, Yunhao, Li, Mingyu, Qiao, Xvsheng, Fan, Xianping, and Wang, Feng
- Subjects
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MICROSTRUCTURE , *CRYSTAL structure , *PHOTOLUMINESCENCE , *CRYSTAL growth , *LIGANDS (Chemistry) , *CHEMICAL kinetics - Abstract
A class of one-dimensional hollow microstructure is described, which was formed by a kinetically controlled crystal growth process. A hexagonal-phase NaYbF4 microrod comprising isolated holes along the longitudinal axis was synthesized by a one-pot hydrothermal method with the assistance of citrate ligands. The structural void feature modulates light intensity across the microrods as a result of interference arising from light scattering and reflection by the inner walls. A single crystal comprising a structural void was doped with upconverting lanthanide ions. Upon near-infrared excitation of the doped crystal spatially resolvable optical codes were produced. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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