Photoluminescence and phosphorescence of Mn2+ ion activated green phosphor Na2ZnSiO4:Mn2+ synthesized by self-reduction

作者: Yu Wei , Xinxin Han , Enhai Song , Qinyuan Zhang

DOI: 10.1016/J.MATERRESBULL.2019.01.022

关键词:

摘要: Abstract Mn2+ activated phosphors are vital for lighting and displays, whereas the multivalent states characteristics of Mn made that reducing atmosphere (such as H2, CO, H2/N2) is generally required in synthesis processes. Herein, a doped silicate green phosphor Na2ZnSiO4:Mn2+ was synthesized by an unconventional self-reduction Mn7+/Mn4+/Mn3+ to under air atmosphere. Upon 260 nm excitation, intense photoluminescence band centered at 515 nm phosphorescence after stoppage excitation source can be observed this phosphor. The properties, processes mechanism Na2ZnSiO4:Mn, well phase transformations different sources (MnCO3, Mn2O3, MnO2) various temperatures were investigated systematically. Based on these investigations, together with density functional theory (DFT) calculations, based zinc vacancies V Z n ' has been proposed. This work provides not only new luminescent material, but also insights into valence controlling luminescence tuning.

参考文章(36)
Mengmeng Shang, Guogang Li, Dongmei Yang, Xiaojiao Kang, Chong Peng, Jun Lin, Luminescence properties of Mn2+-doped Li2ZnGeO4 as an efficient green phosphor for field-emission displays with high color purity Dalton Transactions. ,vol. 41, pp. 8861- 8868 ,(2012) , 10.1039/C2DT30670K
Dongling Geng, Mengmeng Shang, Yang Zhang, Ziyong Cheng, Jun Lin, None, Tunable and White-Light Emission from Single-Phase Ca2YF4PO4:Eu2+,Mn2+ Phosphors for Application in W-LEDs European Journal of Inorganic Chemistry. ,vol. 2013, pp. 2947- 2953 ,(2013) , 10.1002/EJIC.201300090
G. Blasse, Energy transfer in oxidic phosphors Physics Letters A. ,vol. 28, pp. 444- 445 ,(1968) , 10.1016/0375-9601(68)90486-6
Z. Chen, J.H. Zhang, S. Chen, M.Y. Lin, C.Q. He, G.D. Xu, M.M. Wang, X.F. Yu, J.Q. Zou, K. Guo, Preparation and luminescence property of Eu2+, Mn2+ co-doped silicates phosphors for white LED Journal of Alloys and Compounds. ,vol. 632, pp. 756- 759 ,(2015) , 10.1016/J.JALLCOM.2015.01.270
S. B. Zhang, Su-Huai Wei, Alex Zunger, Stabilization of Ternary Compounds via Ordered Arrays of Defect Pairs Physical Review Letters. ,vol. 78, pp. 4059- 4062 ,(1997) , 10.1103/PHYSREVLETT.78.4059
Xiaoqing Xu, Jing Ren, Guorong Chen, Deshuang Kong, Changjun Gu, Chunming Chen, Linren Kong, Bright green emission from the Mn 2+ -doped zinc gallogermanate phosphors Optical Materials Express. ,vol. 3, pp. 1727- 1732 ,(2013) , 10.1364/OME.3.001727
Xinmin Zhang, Wei Jiang, Qi Pan, Guangming Yuan, Hyo Jin Seo, Preparation of Sn2+, Mn2+ co-doped α-Sr2P2O7 as rare-earth-free possible white emitting phosphor Materials Letters. ,vol. 128, pp. 89- 92 ,(2014) , 10.1016/J.MATLET.2014.04.098
G. Kresse, J. Furthmüller, Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set. Physical Review B. ,vol. 54, pp. 11169- 11186 ,(1996) , 10.1103/PHYSREVB.54.11169
Cuimiao Zhang, Jun Yang, Cuikun Lin, Chunxia Li, Jun Lin, Reduction of Eu3+ to Eu2+ in MAl2Si2O8 (M=Ca, Sr, Ba) in air condition Journal of Solid State Chemistry. ,vol. 182, pp. 1673- 1678 ,(2009) , 10.1016/J.JSSC.2009.04.009