Issue 14, 2015

Phase dependent visible to near-infrared photoluminescence of CuInS2 nanocrystals

Abstract

Nanocrystals of CuInS2 with the hexagonal wurtzite structure hold great potential for applications requiring efficient energy transport, such as photocatalysis, due to their anisotropic crystal structure. However, thus far their optical properties have proven difficult to study, as luminescence from wurtzite nanocrystals has only recently been observed. In this work, we report the colloidal synthesis of single crystalline, luminescent CuInS2 nanocrystals with both the cubic and hexagonal structures. The crystalline phase, optical properties and mechanism of formation of nanocrystals are controlled by changing the reaction temperature. Photoluminescence is observed in the visible and near-infrared spectral regions, which results from the cubic and hexagonal nanocrystals respectively. Synthetic studies combined with XRD, TEM and EDS mapping provide evidence for the mechanisms behind phase selection.

Graphical abstract: Phase dependent visible to near-infrared photoluminescence of CuInS2 nanocrystals

Supplementary files

Article information

Article type
Paper
Submitted
14 Jan 2015
Accepted
06 Feb 2015
First published
06 Feb 2015
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. C, 2015,3, 3258-3265

Author version available

Phase dependent visible to near-infrared photoluminescence of CuInS2 nanocrystals

A. D. P. Leach, L. G. Mast, E. A. Hernández-Pagán and J. E. Macdonald, J. Mater. Chem. C, 2015, 3, 3258 DOI: 10.1039/C5TC00134J

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements