Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor

Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor

Abstract Ti-doped nano MgAl2O4 for white emission was synthesized by combustion method. Extrinsic Schottky defects, Al vacancies and Ti4+ dopant in Al sites, which are considered to be responsible for bluish-white emission, were observed by STEM on the surface of Ti-doped nano MgAl2O4 powder. The st...

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Main Authors: Jaehyuk Lim, Yongseon Kim, Sungdae Kim, Youngwoon Kim, Shinhoo Kang
Format: Article
Language:English
Published: SpringerOpen 2017-09-01
Series:Nanoscale Research Letters
Online Access:http://link.springer.com/article/10.1186/s11671-017-2288-1
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spelling doaj-9bb990c4b7224e29a7e51c65d2cade1d2020-11-25T00:35:19ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2017-09-011211510.1186/s11671-017-2288-1Defects on the Surface of Ti-Doped MgAl2O4 NanophosphorJaehyuk Lim0Yongseon Kim1Sungdae Kim2Youngwoon Kim3Shinhoo Kang4Samsung Electronics, 95 Samsung2-ro, Giheung-guDepartment of Materials Science and Engineering, Inha UniversityKorea Institute of Materials Science(KIMS)Department of Materials Science and Engineering, Seoul National UniversityDepartment of Materials Science and Engineering, Seoul National UniversityAbstract Ti-doped nano MgAl2O4 for white emission was synthesized by combustion method. Extrinsic Schottky defects, Al vacancies and Ti4+ dopant in Al sites, which are considered to be responsible for bluish-white emission, were observed by STEM on the surface of Ti-doped nano MgAl2O4 powder. The stabilities of the Schottky defect associates, (TiAl ·–VAl′′′)′′, were demonstrated by DFT calculation. The emission behavior was interpreted with these results.http://link.springer.com/article/10.1186/s11671-017-2288-1
collection DOAJ
language English
format Article
sources DOAJ
author Jaehyuk Lim
Yongseon Kim
Sungdae Kim
Youngwoon Kim
Shinhoo Kang
spellingShingle Jaehyuk Lim
Yongseon Kim
Sungdae Kim
Youngwoon Kim
Shinhoo Kang
Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor
Nanoscale Research Letters
author_facet Jaehyuk Lim
Yongseon Kim
Sungdae Kim
Youngwoon Kim
Shinhoo Kang
author_sort Jaehyuk Lim
title Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor
title_short Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor
title_full Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor
title_fullStr Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor
title_full_unstemmed Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor
title_sort defects on the surface of ti-doped mgal2o4 nanophosphor
publisher SpringerOpen
series Nanoscale Research Letters
issn 1931-7573
1556-276X
publishDate 2017-09-01
description Abstract Ti-doped nano MgAl2O4 for white emission was synthesized by combustion method. Extrinsic Schottky defects, Al vacancies and Ti4+ dopant in Al sites, which are considered to be responsible for bluish-white emission, were observed by STEM on the surface of Ti-doped nano MgAl2O4 powder. The stabilities of the Schottky defect associates, (TiAl ·–VAl′′′)′′, were demonstrated by DFT calculation. The emission behavior was interpreted with these results.
url http://link.springer.com/article/10.1186/s11671-017-2288-1
work_keys_str_mv AT jaehyuklim defectsonthesurfaceoftidopedmgal2o4nanophosphor
AT yongseonkim defectsonthesurfaceoftidopedmgal2o4nanophosphor
AT sungdaekim defectsonthesurfaceoftidopedmgal2o4nanophosphor
AT youngwoonkim defectsonthesurfaceoftidopedmgal2o4nanophosphor
AT shinhookang defectsonthesurfaceoftidopedmgal2o4nanophosphor
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