Open AccessEffects of sefl-reduction of glass matrix on the broadband near infrared emissions from Bi-doped alkali earth aluminoborosilicate glasses
Author(s) -
Yongjin Li,
Zhiguo Song,
Li Chen,
R. Wan,
Jianbei Qiu,
Zhaochu Yang,
Yin Zhao-Yi,
Wei Xue,
Qi Wang,
Dacheng Zhou,
Yang Yong
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.117801
Subject(s) - alkali metal , materials science , doping , bismuth , ion , infrared , alkaline earth metal , analytical chemistry (journal) , earth (classical element) , emission intensity , matrix (chemical analysis) , mineralogy , optics , optoelectronics , chemistry , composite material , physics , environmental chemistry , metallurgy , organic chemistry , mathematical physics
We report the effects of self-reduction of glass matrix on the broadband near infrared (NIR) emissions from Bi-doped alkali earth aluminoborosilicate glasses. Bi2O3 -doped as well as Eu2O3, -doped as a comparison, 35SiO2-25AlPO4-12.5Al2O3-12.5B2O3-15RO (R=Ca,Sr,Ba) glasses were prepared in air. Results show that the self-reduction process of Eu3+→Eu2+ occurs in this glass matrix. Meanwhile the intensity of NIR emission peaked at about 1300nm increases with the increase in the radius of alkali earth ions, while the intensity of both NIR emission peaked at about 1100nm and the red emission from Bi2+decreases. Then the origins of infrared-emitting bismuth centers were discussed according to the correlation of the conversion of Bi ions with the size of alkali earth ions. The results of this work is helpful for understanding the nature of Bi-NIR-emission and may be a guide for the selection of composition of high performance Bi-doped glass.