S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Material Science and Engineering (재료공학부) Journal Papers (저널논문_재료공학부)
Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor
- Lim, Jaehyuk; Kim, Yongseon; Kim, Sungdae; Kim, Youngwoon; Kang, Shinhoo
- Issue Date
- Springer Open
- Nanoscale Research Letters, 12(1):536
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.