Enhanced photoluminescence of polyfluorene by incorporation of Al-doped ZnO nanoparticles

Ton-That, C; Nguyen, TP; Dan, Y

Enhanced photoluminescence of polyfluorene by incorporation of Al-doped ZnO nanoparticles

Ton-That, C

Nguyen, TP Dan, Y

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Publication Type:: Journal Article
Citation:: Thin Solid Films, 2013, 538 pp. 85 - 88
Issue Date:: 2013-07-01

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Field	Value	Language
dc.contributor.author	Ton-That, C https://orcid.org/0000-0003-3276-1739	en_US
dc.contributor.author	Nguyen, TP	en_US
dc.contributor.author	Dan, Y	en_US
dc.date.issued	2013-07-01	en_US
dc.identifier.citation	Thin Solid Films, 2013, 538 pp. 85 - 88	en_US
dc.identifier.issn	0040-6090	en_US
dc.identifier.uri	http://hdl.handle.net/10453/23924
dc.description.abstract	Photoluminescent and structural properties of nanocomposite films consisting of green-emitting polyfluorene (PF) and Al-doped ZnO (AZO) nanoparticles were investigated. Topographical analysis shows that AZO nanoparticles can be homogeneously dispersed in PF films with less than 10 wt.% AZO. Photoluminescence of the composite films was investigated under wavelength selective excitation of AZO. Photoexcitation with laser energy below the AZO bandgap produces a slight increase in the PF emission intensity with increasing AZO concentration, accompanied by a spectral blueshift. These effects are attributed to separation of polymer chains and twisting of the PF backbone as revealed by Raman spectroscopy. On the other hand, photoexcitation above the AZO bandgap shows a remarkable enhancement, with the intensity at 5-10 wt.% AZO being three times greater than that of pure PF. The luminescence enhancement is attributed to the efficient transfer of energy from AZO nanoparticles to PF. © 2013 Elsevier B.V. All rights reserved.	en_US
dc.relation.ispartof	Thin Solid Films	en_US
dc.relation.isbasedon	10.1016/j.tsf.2012.12.087	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Enhanced photoluminescence of polyfluorene by incorporation of Al-doped ZnO nanoparticles	en_US
dc.type	Journal Article
utslib.citation.volume	538	en_US
utslib.for	1007 Nanotechnology	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	10 Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	538	en_US

Abstract:

Photoluminescent and structural properties of nanocomposite films consisting of green-emitting polyfluorene (PF) and Al-doped ZnO (AZO) nanoparticles were investigated. Topographical analysis shows that AZO nanoparticles can be homogeneously dispersed in PF films with less than 10 wt.% AZO. Photoluminescence of the composite films was investigated under wavelength selective excitation of AZO. Photoexcitation with laser energy below the AZO bandgap produces a slight increase in the PF emission intensity with increasing AZO concentration, accompanied by a spectral blueshift. These effects are attributed to separation of polymer chains and twisting of the PF backbone as revealed by Raman spectroscopy. On the other hand, photoexcitation above the AZO bandgap shows a remarkable enhancement, with the intensity at 5-10 wt.% AZO being three times greater than that of pure PF. The luminescence enhancement is attributed to the efficient transfer of energy from AZO nanoparticles to PF. © 2013 Elsevier B.V. All rights reserved.

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http://hdl.handle.net/10453/23924