Synthesis and formation mechanism of CuInS2 nanocrystals with a tunable phase

Chao Yu; Linlin Zhang; Long Tian; Dan Liu; Fanglin Chen; Cheng Wang

doi:10.1039/C4CE00893F

Synthesis and formation mechanism of CuInS₂ nanocrystals with a tunable phase†

Chao Yu,^ab Linlin Zhang,^ac Long Tian,^a Dan Liu,^a Fanglin Chen*^d and Cheng Wang*^a

* Corresponding authors

^a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
E-mail: cwang@ciac.ac.cn
Fax: +86 431 85698041
Tel: +86 431 85262770

^b School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China

^c Chinese Academy of Sciences, Beijing 100049, PR China

^d Department of Mechanical Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA
E-mail: chenfa@cec.sc.edu
Tel: +1 8037774875

Abstract

Chalcopyrite CuInS₂ (CIS) hierarchical structures composed of nanoflakes with a thickness of about 5 nm were synthesized by a facial solvothermal method. The thermodynamically metastable wurtzite phase CIS would be obtained by using InCl₃ instead of In(NO₃)₃ as In precursor. The effects of the In precursor and the volume of concentrated HCl aqueous solution on the phases and morphologies of CIS nanocrystals have been systematically investigated. Experimental results indicated that the obtained phases of CIS nanocrystals were predominantly determined by precursor-induced intermediate products. The photocatalytic properties of chalcopyrite and wurtzite CIS in visible-light-driven degradation of organic dye were also compared.

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Article information

DOI: https://doi.org/10.1039/C4CE00893F
Article type: Paper
Submitted: 28 Apr 2014
Accepted: 05 Jun 2014
First published: 09 Jun 2014

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CrystEngComm, 2014,16, 9596-9602

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Synthesis and formation mechanism of CuInS₂ nanocrystals with a tunable phase

C. Yu, L. Zhang, L. Tian, D. Liu, F. Chen and C. Wang, CrystEngComm, 2014, 16, 9596 DOI: 10.1039/C4CE00893F

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