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Issue 36, 2016
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Observation of compositional domains within individual copper indium sulfide quantum dots

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Abstract

The origin of photoluminescence in copper indium sulfide (CIS) quantum dots (Qdots) has previously been ascribed to a donor–acceptor pair (DAP) recombination, with a crystal lattice defect implicated as the origin of the donor state. In this study, electron energy-loss spectroscopy (EELS) was used to observe defect-rich compositional domains within individual CIS Qdots, supporting a model of defect-state-mediated photoluminescence for these particles, and identifying them as an ideal model system for future study of lattice defects on Qdot properties.

Graphical abstract: Observation of compositional domains within individual copper indium sulfide quantum dots

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Publication details

The article was received on 21 Apr 2016, accepted on 18 Jul 2016 and first published on 19 Jul 2016


Article type: Communication
DOI: 10.1039/C6NR03269A
Citation: Nanoscale, 2016,8, 16157-16161
  • Open access: Creative Commons BY license
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    Observation of compositional domains within individual copper indium sulfide quantum dots

    A. J. Harvie, M. Booth, R. L. Chantry, N. Hondow, D. M. Kepaptsoglou, Q. M. Ramasse, S. D. Evans and K. Critchley, Nanoscale, 2016, 8, 16157
    DOI: 10.1039/C6NR03269A

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