Phase evolution and photoluminescence enhancement of CePO4 nanowires from a low phosphate concentration system

Xu, Pengfei and Yu, Ranbo and Zong, Lingbo and Wang, Jiali and Wang, Dan and Deng, Jinxia and Chen, Jun and Xing, Xianran (2013) Phase evolution and photoluminescence enhancement of CePO4 nanowires from a low phosphate concentration system. Journal of Nanoparticle Research, 15 (5). ISSN 1388-0764

Abstract

Uniform CePO4 nanowires have been successfully synthesized in a low phosphate concentration system through a single-step hydrothermal process. The low phosphate concentration might decrease the surface PO4 3- adsorption of the as-synthesized CePO4 nanowires efficiently and benefit their photoluminescence. The CePO4 nanowires were identified to go through phase evolution from pure monoclinic to mixed hexagonal and monoclinic phase by only increasing the initial molar ratio of cerium and phosphate source (denoted as Ce/P). Interestingly, the strongest photoluminescence was observed in the CePO4 nanowires synthesized with the initial Ce/P of 4:1, which proved to be the critical phase evolution point between the hexagonal and monoclinic CePO4. Therefore, the strong photoluminescence could be explained by the existence of the structure-sensitive energy level in the CePO4. This kind of photoluminescence enhancement would be a meaningful reference for design of other photoluminescent materials, in which the photoluminescent emission might be related to the structure-sensitive energy level. Additionally, the growth processes of CePO4 nanowires based on related well-designed experiments were proposed.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: No
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 19 Jun 2017 01:32
Last Modified: 03 Jul 2017 05:56
Uncontrolled Keywords: Enhanced photoluminescence; Lower phosphate concentration; Phase evolution; Uniform CePO4 nanowires; Hydrothermal process; Monoclinic phase; Phase evolutions; Phosphate concentration; Photoluminescence enhancement; Photoluminescent emission; Photoluminescent materials; Structure-sensitive; Light and Optics; Nanotechnology;
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091299 Materials Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1007/s11051-013-1622-5
URI: http://eprints.usq.edu.au/id/eprint/31972

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