Blue luminescence from ZnGa2O4: Effect of lattice distortion and particle size

被引：32
作者：
Kamal, Chirauri Satya [1 ,2 ]
Boddu, Sanyasinaidu [3 ]
Vishwanadh, B. [4 ]
Rao, K. Ramachandra [1 ]
Sudarsan, V. [3 ]
Vatsa, R. K. [3 ]
机构：
[1] Govt Coll A, Crystal Growth & Nanosci Res Ctr, Rajahmundry 533105, Andhra Prades, India
[2] Adikavi Nannaya Univ, Dept Phys, Rajahmundry 533296, Andhra Prades, India
[3] Bhabha Atom Res Ctr, Chem Div, Bombay 400085, Maharashtra, India
[4] Bhabha Atom Res Ctr, Mat Sci Div, Bombay 400085, Maharashtra, India
来源：
JOURNAL OF LUMINESCENCE | 2017年 / 188卷
关键词：
ZnGa2O4; Synthesis; Photo luminescence; Lifetime; XRD; TEM; PHOTOLUMINESCENCE PROPERTIES; N-LINES; PHOSPHOR; EMISSION; SPECTRA; MN2+;
D O I：
10.1016/j.jlumin.2017.04.056
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Dependence of structural and luminescence properties of nano-crystalline ZnGa2O4 phosphors on the synthesis conditions such as concentration of precursor metal ions and nature of solvents were investigated in detail. Based on XRD and luminescence studies carried out on samples prepared with high and low concentrations of precursor metal ions in ethylene glycol medium, it is established that distortion of structural units along with defects/traps in the lattice, and not the particle size, is responsible for the observed blue shift in emission maxima with decrease in precursor concentrations. Unlike this, a red shift is observed when the synthesis is carried out under identical conditions in water medium. This has been explained based on difference in particle size distributions as confirmed by TEM studies.
引用
收藏
页码：429 / 435
页数：7
相关论文
共 30 条
  • [1] Hydrothermal Synthesis and Characterization of Undoped and Eu-Doped ZnGa2O4 Nanoparticles
    Aneesh, P. M.
    Krishna, K. Mini
    Jayaraj, M. K.
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (03) : K33 - K36
  • [2] Luminescence Characteristics of ZnG(a)2O(4) : Mn2+, Cr3+ Phosphor and Thick Film
    Cha, Jae Hyeok
    Choi, Hyung Wook
    [J]. TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS, 2011, 12 (01) : 11 - 15
  • [3] Synthesis and luminescence properties of ZnGa2O4 spinel doped with Co2+ and Eu3+ ions
    Duan, Xiulan
    Yu, Fapeng
    Wu, Yuanchun
    [J]. APPLIED SURFACE SCIENCE, 2012, 261 : 830 - 834
  • [4] Red, Green, and Blue Luminescence from ZnGa2O4 Nanowire Arrays
    Gu, Zhanjun
    Liu, Feng
    Li, Xufan
    Howe, Jane
    Xu, Jun
    Zhao, Yuliang
    Pan, Zhengwei
    [J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (01): : 354 - 357
  • [5] High-performance perovskite solar cells by incorporating a ZnGa2O4:Eu3+ nanophosphor in the mesoporous TiO2 layer
    Hou, Xian
    Xuan, Tongtong
    Sun, Hengchao
    Chen, Xiaohong
    Li, Huili
    Pan, Likun
    [J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2016, 149 : 121 - 127
  • [6] Two self-activated optical centers of blue emission in zinc gallate
    Jeong, IK
    Park, HL
    Mho, SI
    [J]. SOLID STATE COMMUNICATIONS, 1998, 105 (03) : 179 - 183
  • [7] First applicability of ZnGa2O4:Ge4+, Li+, Mn2+ phosphor for a plasma display panel
    Jeong, Y. S.
    Kim, J. S.
    Park, H. L.
    [J]. SOLID STATE COMMUNICATIONS, 2006, 139 (04) : 157 - 160
  • [8] Tunable color emission of ZnGa2O4:Si4+ phosphors with enhanced brightness due to donor formation
    Kang, HI
    Kim, JS
    Lee, M
    Bahng, JH
    Choi, JC
    Park, HL
    Kim, GC
    Kim, TW
    Hwang, YH
    Mho, SI
    Eom, SH
    Yu, YS
    Song, HJ
    Kim, WT
    [J]. SOLID STATE COMMUNICATIONS, 2002, 122 (12) : 633 - 636
  • [9] Optical and structural properties of ZnGa2O4: Eu3+ nanophosphor by hydrothermal method
    Kim, Jong Su
    Kwon, Ae Kyung
    Kim, Jin Su
    Park, Hong Lee
    Kim, Gwang Chul
    do Han, Sang
    [J]. JOURNAL OF LUMINESCENCE, 2007, 122 : 851 - 854
  • [10] Optical and electrical properties of ZnGa2O4/Mn2+ powder electroluminescent device
    Kim, JS
    Lee, SG
    Park, HL
    Park, JY
    Han, SD
    [J]. MATERIALS LETTERS, 2004, 58 (7-8) : 1354 - 1357
123