TY - JOUR
T1 - Down-/Up-conversion luminescence behaviors and energy transfer analysis in Tm3+ and Tm3+/Yb3+ co-doped tellurite glasses
AU - Kaniyarakkal, Sharafudeen
AU - Rajasekharaudayar, Kesavulu Culala
AU - Dagupati, Rajesh
AU - Li, Yang
AU - Drewniak, Sabina
AU - Chen, Zhi
AU - Sadasivan Nair, Vijayakumar
AU - Edappadikkunnummal, Shiju
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/12
Y1 - 2023/12
N2 - Glasses with the chemical composition of (50-x-y) TeO2-30ZnO-10YF3-10NaF-0.5Tm2O3-yYb2O3 (y = 0.5, 1.0, and 3.0 mol%) are developed using a melt-quenching method. Measurements of absorption, excitation, down and up-conversion emission spectra, and decay times were used to investigate the energy transfer processes. Cross-relaxation mechanisms caused the emission intensity to decrease at higher Tm3+ ion concentrations. The Tm3+/Yb3+ co-doped glasses showed strong up-conversion emission under the diode laser excitation at 978 nm. Studies on the dependence of pump energy revealed the mechanism underlying the up-conversion luminescence. According to the findings, the developed Tm3+/Yb3+co-doped glasses are also found to be a promising option for spectral conversion and emission (visible and near infrared) applications.
AB - Glasses with the chemical composition of (50-x-y) TeO2-30ZnO-10YF3-10NaF-0.5Tm2O3-yYb2O3 (y = 0.5, 1.0, and 3.0 mol%) are developed using a melt-quenching method. Measurements of absorption, excitation, down and up-conversion emission spectra, and decay times were used to investigate the energy transfer processes. Cross-relaxation mechanisms caused the emission intensity to decrease at higher Tm3+ ion concentrations. The Tm3+/Yb3+ co-doped glasses showed strong up-conversion emission under the diode laser excitation at 978 nm. Studies on the dependence of pump energy revealed the mechanism underlying the up-conversion luminescence. According to the findings, the developed Tm3+/Yb3+co-doped glasses are also found to be a promising option for spectral conversion and emission (visible and near infrared) applications.
KW - Luminescence
KW - Rare earth ions
KW - Tellurite glasses
KW - Up-conversion
UR - http://www.scopus.com/inward/record.url?scp=85171994941&partnerID=8YFLogxK
U2 - 10.1016/j.inoche.2023.111395
DO - 10.1016/j.inoche.2023.111395
M3 - Article
AN - SCOPUS:85171994941
SN - 1387-7003
VL - 158
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
M1 - 111395
ER -