Influence of titanium doping on the Raman spectra of nanocrystalline ZnAl₂O₄

详细信息    查看全文

• 作者：Vlasta Mohaček-Gro&scaron ; ev^a ; ^b ; ^{mohacek@irb.hr} ; Martina Vrankić^a ; ^b ; ^{mvrankic@irb.hr} ; Aleksandar Maksimović^a ; ^b ; ^{Aleksandar.Maksimovic@irb.hr} ; Vilko Mandić^b ; ^{Vilko.Mandic@irb.hr}
• 关键词：Inorganic materials ; Optical materials ; Preferential site ordering ; Optical properties ; Phonons ; Optical spectroscopy
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：697
• 期：Complete
• 页码：90-95
• 全文大小：980 K
• 卷排序：697

文摘

Powder samples of pure and Ti-doped ZnAl2O4 were prepared using a sol–gel route. Raman spectra were undertaken in order to get an insight into the local (dis)order. Lattice dynamics calculation of the ZnAl2O4 phonons were performed within the DFT. Band gap is found to be 4.732 eV in the pure ZnAl2O4. Active T1u and inactive T1g, A2u, Eu, T2u phonons appear due to Ti doping.