期刊
INTEGRATED FERROELECTRICS
卷 224, 期 1, 页码 33-40出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10584587.2022.2035593
关键词
Borate glass; samarium; gadolinium; photoluminescence
资金
- Suan Sunandha Rajabhat University (SSRU)
- Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University (NPRU)
- National Research Council of Thailand (NRCT)
- Thailand Science Research and Innovation (TSRI)
Sm3+-doped Ba-Na-B glasses, doped with varying Gd3+ concentrations from 0 to 10 mol%, were prepared using the melt-quenching technique. The glasses exhibited different absorption and emission characteristics. The glass sample with 2.5 mol% Gd3+ ions showed the highest light yield, while the glass sample with 7.5 mol% Gd3+ ions exhibited better energy transfer.
In this work, Sm3+-doped Ba-Na-B glasses with the varying of Gd3+ concentration from 0 to 10 mol% were prepared by melt-quenching technique. The absorption spectra show the highest peak at 402 nm (in UV-Vis region) and at 1227 nm (in NIR region). The emission spectra, excited by 402 nm excitation wavelength, show the emission peaks centered at 563, 600, 646 and 706 nm. The glass sample with 2.5 mol% of Gd3+ ions show the highest light yield. The emission spectra, excited by 275 nm for investigation of Gd3+ to Sm3+ energy transfer, also highest emission peaks observed at 311 and 622 nm for Gd3+ ions. The emission peaks observed at 563, 600, 646 and 706 nm for Sm3+ ions. The glass sample with 7.5 mol% of Gd3+ ions show the highest light yield because of the better energy transfer from Gd3+ to Sm3+ ions. The color of the emission from these glass samples are located in orange emission region when excited with 402 nm and located in reddish-orange emission region when excited with 275 nm.
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