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Growth of n-type γ-CuCl with improved carrier concentration by pulsed dc sputtering: structural, electronic and UV emission properties

Vijayaraghavan, Rajani K. orcid logoORCID: 0000-0003-1096-448X, Olabanji Lucas, Francis and Daniels, Stephen (2011) Growth of n-type γ-CuCl with improved carrier concentration by pulsed dc sputtering: structural, electronic and UV emission properties. Thin Solid Films, 519 (18). pp. 6064-6068. ISSN 0040-6090

Abstract
Copper (I) chloride is naturally a direct band gap, zincblende and p-type semiconductor material with much potential in linear and non-linear optical applications owing to its large free excitonic binding energy. In order to fabricate an efficient electrically pumped emitter, a combination of both p-type and n-type semiconductor materials will be required. In this study, we report on the growth of n-type γ-CuCl with improved carrier concentration by pulsed dc magnetron sputtering of CuCl/Zn target. An improvement of carrier concentration up to an order of ~ 9.8x1018 cm-3, which is much higher than the previously reported (~ 1016 cm-3), has been achieved. An enhancement in crystallinity of CuCl along the (111) orientation and its consistency with the morphological studies have also been investigated as an effect of doping. Influence of Zn wt % in the sputtering target on the Hall mobility and resistivity of the doped films is explored. The strong ultraviolet emission of doped films is confirmed using room temperature and low temperature photoluminescence studies.
Metadata
Item Type:Article (Published)
Refereed:Yes
Uncontrolled Keywords:n-Type CuCl thin films; sputtering; Photoluminescence; Semiconductor
Subjects:Engineering > Materials
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Institutes and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Research Institutes and Centres > National Centre for Plasma Science and Technology (NCPST)
Publisher:Elsevier
Official URL:http://dx.doi.org/10.1016/j.tsf.2011.03.036
Copyright Information:© 2011 Elsevier
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:This project was funded by the Science Foundation Ireland Research Frontiers Programme (Project#06/RFP/ENE/027) and by the Enterprise Ireland Commercialisation Fund for Technology Development (Project# CFTD/07/IT/331). This work was part-funded by the
ID Code:17855
Deposited On:05 Mar 2013 12:07 by Rajani K.V. . Last Modified 09 Jun 2020 16:13
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