Emission-color change caused by photoredox reactions of europium ions in Ba3MgSi2O8

被引：6

作者：

Yonezaki, Yoshinori ^{[1
]}

Takei, Shino ^{[1
]}

Matsumoto, Sayaka ^{[1
]}

机构：

[1] Univ Yamanashi, Ctr Crystal Sci & Technol, Grad Fac Interdisciplinary Res, Miyamae 7-32, Kofu, Yamanashi 4008511, Japan

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2018年 / 367卷

关键词：

Photochromism; Emission; Silicate; Europium; Photoredox reaction; Glaserite; CRYSTAL-STRUCTURE; PHOTOCHROMISM;

D O I：

10.1016/j.jphotochem.2018.09.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ba3-xEuxMgSi2O8 (0 <x <= 0.20) showed Eu3+ -derived orange emission under near-ultraviolet light. After the photostimulation using a Xe-arc lamp, the emission color turned purple because blue-emission centers arose within it. The following heat treatment reverted the emission color back to the original. From the excitation spectrum, the blue emission was assigned to Eu2+ ions those had not been identified before the photostimulation, which indicates that the photoreduction of Eu3+ caused the observed emission-color change. When x = 0.01, the most intense blue emission was induced by the photostimulation. Further addition of Eu ions lead to a decrease in the induced blue-emission intensity.

引用

页码：406 / 410

页数：5

共 36 条

[31] Dual-responsive Sr2SiO4:Eu2+-Ba3MgSi2O8:Eu2+, Mn2+ composite phosphor to human eyes and plant chlorophylls applications for general lighting and plant lighting
Mao, Zhiyong
Chen, Jingjing
Li, Jian
Wang, Dajian
CHEMICAL ENGINEERING JOURNAL, 2016, 284 : 1003 - 1007
[32] A novel orange-red emission of Ba2La8(SiO4)6O2: Sm3+ phosphor with good thermal stability and hydrophobicity
Wei, Chao
Zhang, Jie
Sun, Zan
Ran, Jingyu
Guo, Lei
Sun, Jiayue
Zhu, Shuai
Ran, Xiangqian
Li, Shuo
Jiang, Chen
Wen, Youjiang
JOURNAL OF ALLOYS AND COMPOUNDS, 2024, 971
[33] Luminescent properties and energy transfer mechanism from Tb3+ to Eu3+ in single-phase color-adjustable Sr3MgSi2O8:Eu3+,Tb3+ phosphor prepared by the sol-gel method
Chen, Xirong
Shu, Qing
He, Jiangfan
JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 891
[34] Exploring the Color of Transition Metal Ions in Irregular Coordination Geometries: New Colored Inorganic Oxides Based on the Spiroffite Structure, Zn2-xMxTe3O8 (M = Co, Ni, Cu)
Tamilarasan, S.
Sarma, Debajit
Bhattacharjee, S.
Waghmare, U. V.
Natarajan, S.
Gopalakrishnan, J.
INORGANIC CHEMISTRY, 2013, 52 (10) : 5757 - 5763
[35] A single-phase Ba9Lu2Si6O24:Eu2+, Ce3+, Mn2+ phosphor with tunable full-color emission for NUV-based white LED applications
Zhang, Changhua
Liu, Yongfu
Zhang, Jiahua
Zhang, Xia
Zhang, Jianxin
Cheng, Zhixuan
Jiang, Jun
Jiang, Haochuan
MATERIALS RESEARCH BULLETIN, 2016, 80 : 288 - 294
[36] Spectral change and far-red emission of Mn2+ions co-doped NaSrB5O9:Dy3+luminescence material for plant growth LEDs*
Munirathnam, K.
Mallikarjuna, Koduru
Vijaya, R.
Nagajyothi, P. C.
Reddy, K. Ramakrishna
Srinivas, M.
JOURNAL OF RARE EARTHS, 2022, 40 (02) : 218 - 225

← 1 2 3 4 →