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Enhanced upconversion emission of NaGdF4: Yb3+/Tm3+ crystals by introducing Li+ ions for anti-counterfeiting recognition

Li, DD; Mo, JY; Wang, C; Wu, ZW; Hao, AH; She, JB

Li, DD (corresponding author), Xian Univ Post & Telecommun, Sch Elect Engn, Xian 710121, Peoples R China.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2021; 127 (7):

Abstract

The upconversion efficiency could be affected by Li+ ions with changing the local crystal field of nanoparticles. Therefore, a series of NaGdF4:Yb3+/T......

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