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The luminescent properties of CuAlO2

Byrne, Daragh ORCID: 0000-0002-2040-9765, Cowley, Aidan, Bennett, N.S. and McGlynn, Enda ORCID: 0000-0002-3412-9035 (2014) The luminescent properties of CuAlO2. Journal of Materials Chemistry C, 2 . pp. 7859-7868. ISSN 2050-7526

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Abstract

In this work we examine the room temperature photoluminescence, Raman and low temperature photoluminescence properties of CuAlO2 prepared using different precursors. At room temperatures the luminescence associated with bulk CuAlO2 occurs at 355 nm and is associated with strong resonant Raman effects. At low temperatures we find that the UV emission is dominated by strong electron– phonon coupling leading to a Franck–Condon type emission band. A second strongly phonon coupled band is also observed in the blue spectral region. In addition we also show that at low temperatures the luminescent properties of CuAlO2 are meta-stable, with anomalous temperature dependence. The possible origins of the blue band, the meta-stability and anomalous temperature dependence are discussed.

Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:CuAlO2; Photoluminescence
Subjects:Engineering > Materials
Physical Sciences > Spectrum analysis
Physical Sciences > Chemistry
Physical Sciences > Semiconductors
Physical Sciences > Crystallography
DCU Faculties and Centres:Research Initiatives and Centres > National Centre for Plasma Science and Technology (NCPST)
DCU Faculties and Schools > Faculty of Science and Health > School of Physical Sciences
Publisher:Royal Society of Chemistry
Official URL:http://dx.doi.org/10.1039/c4tc01311e
Copyright Information:© 2014 RSC
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:20134
Deposited On:19 Sep 2014 10:22 by Enda Mcglynn . Last Modified 20 Sep 2018 13:06

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