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Front Cover: Excitation Position Sensitive Upconversion Emission of Lanthanide Ions Doped β‐NaYF 4 Single Microcrystals (ChemNanoMat 4/2018)
Author(s) -
Wang Bing,
Wang Jiao,
Huang Gaoshan,
Li Shilong,
Mei Yongfeng
Publication year - 2018
Publication title -
chemnanomat
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201800053
Subject(s) - photon upconversion , lanthanide , materials science , excitation , doping , ion , excited state , laser , absorption (acoustics) , rod , optoelectronics , optics , chemistry , atomic physics , physics , organic chemistry , quantum mechanics , medicine , alternative medicine , pathology , composite material
Upconversion (UC) light emission and propagation properties of lanthanide ions doped (Ln‐doped) microcrystals are essential for related optical applications, such as display, lasers, and bioimaging. This contribution presents excitation position sensitive emission and light distribution around Yb 3+ /Er 3+ /Tm 3+ doped β‐NaYF 4 microcrystals, such as disks and rods. The cover art depicts excited position/crystal facet dependent anisotropic colorful emission in β‐NaYF 4 microdisks and microrods, owing to light self‐absorption in crystals. More information can be found in the Full Paper by Jiao Wang, Yongfeng Mei et al. on page 348 in Issue 4, 2018 (DOI: 10.1002/cnma.201700352).