Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor

被引：4

作者：

Lim, Jaehyuk ^{[1
,4
]}

Kim, Yongseon ^{[2
]}

Kim, Sungdae ^{[3
]}

Kim, Youngwoon ^{[4
]}

Kang, Shinhoo ^{[4
]}

机构：

[1] Samsung Elect, 95 Samsung2 Ro, Yongin, Gyeonggi Do, South Korea

[2] Inha Univ, Dept Mat Sci & Engn, Incheon 402751, South Korea

[3] KIMS, 797 Changwondaero, Chang Won 642831, Gyeongsangnam D, South Korea

[4] Seoul Natl Univ, Dept Mat Sci & Engn, Gwanak Ku, 1 Gwanak Ro, Seoul 151742, South Korea

来源：

NANOSCALE RESEARCH LETTERS | 2017年 / 12卷

关键词：

ENERGY; NANOPARTICLES; SPINEL;

D O I：

10.1186/s11671-017-2288-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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, (Ti-Al-V'''(Al))'', were demonstrated by DFT calculation. The emission behavior was interpreted with these results.

引用

页数：5

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