TY - JOUR
T1 - Sm3+ ions doped Sm2Si2O7-based glass ceramics
T2 - Crystallization, luminescence and energy transfer process through heat treatment
AU - Monisha, M.
AU - Murari, M. S.
AU - Aloraini, Dalal Abdullah
AU - Almuqrin, Aljawhara H.
AU - Sayyed, M. I.
AU - Naregundi, Karunakara
AU - Kamath, Sudha D.
N1 - Funding Information:
Foundation item: Project supported by Department of Science and Technology (DST) - Science and Engineering Research Board (SERB), Government of India (DST-SERB-EMR/2017/001548).The authors express their gratitude to Princess Nourah bint Abdulrahman University Researchers Supporting Project (PNURSP2022R57), Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
Funding Information:
Foundation item : Project supported by Department of Science and Technology (DST) - Science and Engineering Research Board (SERB), Government of India ( DST-SERB-EMR/2017/001548 ).
Publisher Copyright:
© 2022 Chinese Society of Rare Earths
PY - 2022
Y1 - 2022
N2 - Sm3+ ions incorporated Sm2Si2O7 crystalline phase formed in the aluminoborosilicate glass matrix synthesized via melting quenching technique followed by heat-treatment process is reported herewith. The preliminary confirmation on the obtained glass ceramics was made through X-ray diffration (XRD) studies. Formation of non-bridging oxygens (NBOs) in the glass network and the modes of vibrations of network units were analyzed through Fourier transform infrared spectroscopy (FTIR) studies. Surface morphology of heat-treated samples at varying temperatures was determined via a field emission scanning electron microscope (FESEM). The absorption studies on heat-treated samples signify the low bandgap values and high Urbach energy values due to improved crystallinity in the glass network. Judd–Ofelt intensity parameters identified for visible absorption transitions follow the trend of Ω4 >Ω2> Ω6. Excitation and emission studies on heat-treated samples show improvement in their intensities compared to the unheated base glass. The thermal quenching is observed at higher temperatures (540 and 580 °C for 3 h) of heat-treated samples. Calculations based on luminescence spectra including radiative transition probability, stimulated emission cross-section and branching ratio show good results for glass ceramics prior to precursor glass. Longer lifetimes of Sm3+ ions (milliseconds) in the level 4G5/2 are seen for glass ceramics. Color coordinates suggest the reddish-orange emissions from prepared glass ceramics. Thus, Sm3+ doped Sm2Si2O7 glass ceramics are favorable materials for solid-state lighting and laser applications.
AB - Sm3+ ions incorporated Sm2Si2O7 crystalline phase formed in the aluminoborosilicate glass matrix synthesized via melting quenching technique followed by heat-treatment process is reported herewith. The preliminary confirmation on the obtained glass ceramics was made through X-ray diffration (XRD) studies. Formation of non-bridging oxygens (NBOs) in the glass network and the modes of vibrations of network units were analyzed through Fourier transform infrared spectroscopy (FTIR) studies. Surface morphology of heat-treated samples at varying temperatures was determined via a field emission scanning electron microscope (FESEM). The absorption studies on heat-treated samples signify the low bandgap values and high Urbach energy values due to improved crystallinity in the glass network. Judd–Ofelt intensity parameters identified for visible absorption transitions follow the trend of Ω4 >Ω2> Ω6. Excitation and emission studies on heat-treated samples show improvement in their intensities compared to the unheated base glass. The thermal quenching is observed at higher temperatures (540 and 580 °C for 3 h) of heat-treated samples. Calculations based on luminescence spectra including radiative transition probability, stimulated emission cross-section and branching ratio show good results for glass ceramics prior to precursor glass. Longer lifetimes of Sm3+ ions (milliseconds) in the level 4G5/2 are seen for glass ceramics. Color coordinates suggest the reddish-orange emissions from prepared glass ceramics. Thus, Sm3+ doped Sm2Si2O7 glass ceramics are favorable materials for solid-state lighting and laser applications.
UR - http://www.scopus.com/inward/record.url?scp=85140431760&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85140431760&partnerID=8YFLogxK
U2 - 10.1016/j.jre.2022.05.021
DO - 10.1016/j.jre.2022.05.021
M3 - Article
AN - SCOPUS:85140431760
SN - 1002-0721
JO - Journal of Rare Earths
JF - Journal of Rare Earths
ER -