Influence of sulphide precursor on crystal phase of ternary I-III-VI^sub 2^ semiconductors

Samples of AgInS^sub 2^ and CuInS^sub 2^ nanoparticles were synthesized by hot-injection method at 270 °C using 1-dodecanethiol (DT) and elemental sulphur (S) as sulphide precursors, and oleylamine as reaction medium and surfactant. Composition, crystal structure, and particle size of obtained mater...

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Bibliographic Details
Published in:Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2013-12, Vol.15 (12), p.1
Main Authors: Belos, Milica V, Abazovic, Nadica D, Jakovljevic, Jadranka Kuljanin, Jankovic, Ivana, Ahrenkiel, Scott P, Mitric, Miodrag, Comor, Mirjana I
Format: Article
Language:English
Subjects:
Nanoparticles
Sulfides
Surfactants
Online Access:Get full text
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Summary:Samples of AgInS^sub 2^ and CuInS^sub 2^ nanoparticles were synthesized by hot-injection method at 270 °C using 1-dodecanethiol (DT) and elemental sulphur (S) as sulphide precursors, and oleylamine as reaction medium and surfactant. Composition, crystal structure, and particle size of obtained materials were tracked by XRD and TEM/HRTEM measurements. It was shown that, due to its dual role as sulphur source and surfactant, DT drastically slows formation of desired material. Samples obtained with DT even after 4 h of reaction have traces of intermediary compound ([beta]-IN2S^sub 3^), whereas in samples synthesized with elemental S these traces are less pronounced. The growth mechanism and influence of each reaction step are discussed in detail.[PUBLICATION ABSTRACT]
ISSN:1388-0764
1572-896X
DOI:10.1007/s11051-013-2148-6