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Comment to “Continuous‐wave laser irradiation to form Cd 1− x Zn x Se shell on CdSe QDs in silicate glasses” (J. Amer. Ceram. Soc. 102, 4555‐4561 (2019))
Author(s) -
Azhniuk Yuriy M.,
Gomonnai Alexander V.,
Lopushansky Vasyl V.,
Zahn Dietrich R. T.
Publication year - 2020
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.16754
Subject(s) - silicate , homogeneous , silicate glass , shell (structure) , materials science , quantum dot , raman scattering , precipitation , scattering , semiconductor , raman spectroscopy , irradiation , matrix (chemical analysis) , mineralogy , molecular physics , nanotechnology , analytical chemistry (journal) , chemical engineering , chemistry , optics , optoelectronics , physics , thermodynamics , composite material , nuclear physics , chromatography , meteorology , engineering
Abstract The paper by Lee et al (J Am Ceram Soc 102:4555‐4561, 2019) reports on semiconductor quantum dots (QDs) obtained in a silicate glass matrix by a novel modification of the solid‐state precipitation technique and characterized by a variety of techniques. Based on their experimental data, we critically discuss their assessment of the QDs obtained as CdSe/Cd 1− x Zn x Se core/shell structures. By analyzing their results (in particular, Raman scattering data) and comparing them to other data available in literature, we show that the data presented give no evidence for the formation of core/shell structures and conclude that the authors obtained rather homogeneous Cd 1− x Zn x Se QDs without any noticeable compositional gradient.