Structural, optical properties, energy transfer mechanism and quantum cutting of Tb3+ doped ZnS quantum dots
作者： N.T. Hien , N.X. Ca , N.T. Kien , N.T. Luyen , P.V. Do
DOI: 10.1016/J.JPCS.2020.109638
关键词: Analytical chemistry 、 Dopant 、 Emission spectrum 、 Zinc 、 Doping 、 Ion 、 Photoluminescence 、 Quantum dot 、 Transmission electron microscopy 、 Materials science
摘要: Abstract Tb-doped ZnS (ZnS:Tb3+) QDs with various Tb concentration have been successfully fabricated by the wet chemical method. The X-ray diffraction (XRD) and transmission electron microscopy revealed that synthesized had a zinc blende structure particle diameter was about 5 nm. optical properties were studied through photoluminescence (PL) spectra time decay curves. XRD, emission PL kinetics confirmed successful incorporation of Tb3+ ions into host. also intensity dopant significantly enhanced due to energy transfer from host material. interaction mechanism between Inokuti-Hirayama model. efficiency process nature this determined. For first time, quantum cutting based on has for ZnS:Tb3+ QDs.
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