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Modulation on Radiative Recombination Rate of CdS Nanobelts by Selective Rare Earth Ions
Author(s) -
Ji Xu,
Cheng Shuang
Publication year - 2021
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.202000170
Subject(s) - photoluminescence , ion , rare earth , doping , luminescence , spontaneous emission , radiative transfer , recombination , materials science , lattice (music) , quenching (fluorescence) , photochemistry , chemistry , chemical physics , optoelectronics , fluorescence , mineralogy , physics , optics , laser , biochemistry , organic chemistry , acoustics , gene
Rare earth ions Er 3+ , La 3+ , and Y 3+ have been introduced into the lattice of CdS nanobelts (NBs) to modulate its radiative recombination rate (RRR) during photoluminescence (PL) process. It is found that these ions have different quenching effects on the RRRs of direct interband transition and defect related transition. Only the former is greatly reduced through Er 3+ doping, however, both of them are suppressed to a certain extent by La 3+ and Y 3+ doping. It is valuable that specific solid color luminescence can be realized through well‐chosen rare earth ions.