The influence of reaction media on CdIn sub(2)S sub(4) and ZnIn sub(2)S sub(4) nanocrystallite formation and growth of mesocrystal structures

A hot-injection method for the synthesis of CdIn sub(2)S sub(4) in three different compositions of organic media/solvents was studied. Nanosized CdIn sub(2)S sub(4) is successfully synthesized in an oleic acid/oleylamine mixture of complexing/capping agents. The obtained mesocrystals of 20-30 nm in...

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Bibliographic Details
Published in:CrystEngComm 2015-11, Vol.17 (44), p.8492-8499
Main Authors: Carevic, M V, Comor, MI, Mitric, M N, Barudzija, T S, Ahrenkiel, S P, Abazovic, N D
Format: Article
Language:English
Subjects:
Empirical equations
Formations
Ligands
Mathematical analysis
Media
Semiconductors
Spectra
Synthesis
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Summary:A hot-injection method for the synthesis of CdIn sub(2)S sub(4) in three different compositions of organic media/solvents was studied. Nanosized CdIn sub(2)S sub(4) is successfully synthesized in an oleic acid/oleylamine mixture of complexing/capping agents. The obtained mesocrystals of 20-30 nm in diameter are self-organized in marigold-like structures. The estimated band-gap of synthesized semiconductor is in the visible spectral region and has a value of about 2.1 eV. The potential of the band edges is calculated using an empirical equation. The as-prepared material was successfully transferred from organic to aqueous media by using 2-mercaptoethanol in a surface ligand exchange process. Using a similar synthetic procedure, ZnIn sub(2)S sub(4) synthesis was performed. The obtained materials were characterized using UV/vis spectroscopy, XRD and TEM. Formation and growth mechanisms of the synthesized materials are proposed.
ISSN:1466-8033
DOI:10.1039/c5ce01432h