The structure and photoluminescence performances of ZnxAl2O4:Cr3+ crystals with various annealing temperatures

被引：0
|
作者：
Zhou, A. P. [1 ]
Zhang, D. [2 ]
Gong, Z. Q. [3 ]
Shi, Q. [2 ]
Li, C. [1 ]
机构：
[1] Shandong Univ Technol, Sch Phys & Optoelect Engn, Zibo 255049, Peoples R China
[2] Liaocheng Univ, Sch Phys Sci & Informat Technol, Liaocheng 252059, Peoples R China
[3] Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Peoples R China
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2018年 / 12卷 / 9-10期
关键词：
Semiconductors; ZnAl2O4; crystals; Spinel structure; Photoluminescence; FACILE SYNTHESIS; ZNAL2O4; NANOPARTICLES; LUMINESCENCE; CR3+;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnxAl2O4: Cr3+ (0.1 mol%) crystals were synthesized by using sol-gel method follow by the annealing treatment with temperatures ranging from 600 degrees C to 1000 degrees C. A series of emission peaks associated with the spin-forbidden E-2(g)->(4)A(2g) transition of Cr3+ ions were observed at the range from 650 nm to 720 nm. With the Zn/Al molar ratio increasing, the results of X-ray photoelectron spectra showed that the excess Al ions occupying tetrahedral sites decreased. Meanwhile the full width at half maximum of emission peaks became much narrower, and the intensity ratio between R line and N line increased for all samples but decreased with the annealing temperature increasing.
引用
收藏
页码：588 / 594
页数：7
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