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2D Layered Materials of Rare‐Earth Er‐Doped MoS 2 with NIR‐to‐NIR Down‐ and Up‐Conversion Photoluminescence
Author(s) -
Bai Gongxun,
Yuan Shuoguo,
Zhao Yuda,
Yang Zhibin,
Choi Sin Yuk,
Chai Yang,
Yu Siu Fung,
Lau Shu Ping,
Hao Jianhua
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201601833
Subject(s) - materials science , doping , dopant , photoluminescence , rare earth , density functional theory , transition metal , energy conversion efficiency , nanotechnology , optoelectronics , catalysis , computational chemistry , metallurgy , organic chemistry , chemistry
A 2D system of Er‐doped MoS 2 layered nanosheets is developed. Structural studies indicate that the Er atoms can be substitutionally introduced into MoS 2 to form stable doping. Density functional theory calculation implies that the system remains stable. Both NIR‐to‐NIR up‐conversion and down‐conversion light‐emissions are observed in 2D transition metal dichalcogenides, ascribed to the energy transition from Er 3+ dopants.