A new family of wurtzite-phase Cu2ZnAS4−x and CuZn2AS4 (A = Al, Ga, In) nanocrystals for solar energy conversion applications

Anima Ghosh; Soubantika Palchoudhury; Rajalingam Thangavel; Ziyou Zhou; Nariman Naghibolashrafi; Karthik Ramasamy; Arunava Gupta

doi:10.1039/C5CC07743E

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A new family of wurtzite-phase Cu₂ZnAS_4−x and CuZn₂AS₄ (A = Al, Ga, In) nanocrystals for solar energy conversion applications†

Anima Ghosh,^ab Soubantika Palchoudhury,*^a Rajalingam Thangavel,^b Ziyou Zhou,^a Nariman Naghibolashrafi,^a Karthik Ramasamy*^c and Arunava Gupta*^a

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* Corresponding authors

^a Center for Materials for Information Technology, The University of Alabama, Tuscaloosa, AL, USA
E-mail: agupta@mint.ua.edu, soubantika@gmail.com
Fax: +1-2053482346
Tel: +1-2053483822

^b Department of Applied Physics, Indian School of Mines, Dhanbad, Jharkhand, India
E-mail: thangavel.r.ap@ismdhanbad.ac.in

^c Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Albuquerque, NM, USA
E-mail: kramasamy@lanl.gov

Abstract

A new family of quaternary semiconductors Cu₂ZnAS_4−x and CuZn₂AS₄ (A = Al, Ga, In) has been synthesized in the form of wurtzite phase nanocrystals for the first time. The nanocrystals can be converted to the stannite phase via thermal annealing under a N₂ atmosphere. A direct band gap in the visible wavelength region combined with a high absorption cross-section makes these materials promising for solar energy conversion applications.

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Article information

DOI: https://doi.org/10.1039/C5CC07743E
Article type: Communication
Submitted: 15 Sep 2015
Accepted: 02 Oct 2015
First published: 02 Oct 2015
This article is Open Access

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Chem. Commun., 2016,52, 264-267

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A new family of wurtzite-phase Cu₂ZnAS_4−x and CuZn₂AS₄ (A = Al, Ga, In) nanocrystals for solar energy conversion applications

A. Ghosh, S. Palchoudhury, R. Thangavel, Z. Zhou, N. Naghibolashrafi, K. Ramasamy and A. Gupta, Chem. Commun., 2016, 52, 264 DOI: 10.1039/C5CC07743E

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