Staff View: Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications

Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications

A series of Eu3+ and Dy3+ doped/co-doped as well as un-doped BaB2Si2O8 phosphors were synthesized via solid state reaction method. The PL result showed typical blue and green emission from Dy3+ and red emission from Eu3+. The f-f transitions involving the lanthanide ions along with dopant site occup...

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Main Authors:	Leow, Tingqiao, Liu, Hong, Hussin, Rosli, Ibrahim, Zuhairi, Deraman, Karim, Lintang, Hendrik Oktendy, Wan Shamsuri, Wan Nurulhuda
Format:	Article
Published:	Chinese Society of Rare Earths 2016
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/id/eprint/69326/ http://dx.doi.org/10.1016/S1002-0721(14)60573-1
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id	my.utm.69326
record_format	eprints
spelling	my.utm.693262017-11-22T00:45:12Z http://eprints.utm.my/id/eprint/69326/ Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications Leow, Tingqiao Liu, Hong Hussin, Rosli Ibrahim, Zuhairi Deraman, Karim Lintang, Hendrik Oktendy Wan Shamsuri, Wan Nurulhuda QC Physics A series of Eu3+ and Dy3+ doped/co-doped as well as un-doped BaB2Si2O8 phosphors were synthesized via solid state reaction method. The PL result showed typical blue and green emission from Dy3+ and red emission from Eu3+. The f-f transitions involving the lanthanide ions along with dopant site occupancy were discussed thoroughly. Phonon assisted energy transfer process was observed from Eu3+ to Dy3+, which enhanced the emissions of Dy3+. Combinations of the emissions from Eu3+ and Dy3+ showed a possible white to red tuneable emission on the CIE diagram. The white warmth emissions of the phosphor were revealed to be adjustable through designing the dopant concentration and excitation wavelengths. An unusual energy transfer that originated from Eu3+ to Dy3+ was also discovered and the energy transfer mechanism was discussed. Proposed energy transfer mechanism was investigated using luminescence decay lifetime. All the phosphor exhibited efficient excitation in the UV range which matched well with the emissions from GaN-based LED chips. This presented the BaB2Si2O8 phosphor as a promising candidate for white LED applications. The effects of doping on the structural properties and the optical band gap of BaB2Si2O8 phosphor were also discussed in this study. Chinese Society of Rare Earths 2016 Article PeerReviewed Leow, Tingqiao and Liu, Hong and Hussin, Rosli and Ibrahim, Zuhairi and Deraman, Karim and Lintang, Hendrik Oktendy and Wan Shamsuri, Wan Nurulhuda (2016) Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications. Journal of Rare Earths, 34 (1). pp. 21-29. ISSN 1002-0721 http://dx.doi.org/10.1016/S1002-0721(14)60573-1 DOI:10.1016/S1002-0721(14)60573-1
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	QC Physics
spellingShingle	QC Physics Leow, Tingqiao Liu, Hong Hussin, Rosli Ibrahim, Zuhairi Deraman, Karim Lintang, Hendrik Oktendy Wan Shamsuri, Wan Nurulhuda Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications
description	A series of Eu3+ and Dy3+ doped/co-doped as well as un-doped BaB2Si2O8 phosphors were synthesized via solid state reaction method. The PL result showed typical blue and green emission from Dy3+ and red emission from Eu3+. The f-f transitions involving the lanthanide ions along with dopant site occupancy were discussed thoroughly. Phonon assisted energy transfer process was observed from Eu3+ to Dy3+, which enhanced the emissions of Dy3+. Combinations of the emissions from Eu3+ and Dy3+ showed a possible white to red tuneable emission on the CIE diagram. The white warmth emissions of the phosphor were revealed to be adjustable through designing the dopant concentration and excitation wavelengths. An unusual energy transfer that originated from Eu3+ to Dy3+ was also discovered and the energy transfer mechanism was discussed. Proposed energy transfer mechanism was investigated using luminescence decay lifetime. All the phosphor exhibited efficient excitation in the UV range which matched well with the emissions from GaN-based LED chips. This presented the BaB2Si2O8 phosphor as a promising candidate for white LED applications. The effects of doping on the structural properties and the optical band gap of BaB2Si2O8 phosphor were also discussed in this study.
format	Article
author	Leow, Tingqiao Liu, Hong Hussin, Rosli Ibrahim, Zuhairi Deraman, Karim Lintang, Hendrik Oktendy Wan Shamsuri, Wan Nurulhuda
author_facet	Leow, Tingqiao Liu, Hong Hussin, Rosli Ibrahim, Zuhairi Deraman, Karim Lintang, Hendrik Oktendy Wan Shamsuri, Wan Nurulhuda
author_sort	Leow, Tingqiao
title	Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications
title_short	Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications
title_full	Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications
title_fullStr	Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications
title_full_unstemmed	Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications
title_sort	effects of eu3+ and dy3+ doping or co-doping on optical and structural properties of bab2si2o8 phosphor for white led applications
publisher	Chinese Society of Rare Earths
publishDate	2016
url	http://eprints.utm.my/id/eprint/69326/ http://dx.doi.org/10.1016/S1002-0721(14)60573-1
_version_	1643656057375948800
score	13.211869

Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications

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