Kuwik Marta, Górny Agata, Pisarski Wojciech A, Pisarska Joanna
Institute of Chemistry, University of Silesia, Szkolna 9, Katowice 40-007, Poland.
Institute of Chemistry, University of Silesia, Szkolna 9, Katowice 40-007, Poland.
Spectrochim Acta A Mol Biomol Spectrosc. 2022 Mar 5;268:120693. doi: 10.1016/j.saa.2021.120693. Epub 2021 Dec 3.
Spectral properties of lead-free glasses doped with Dy ions in function of glass formers and glass modifiers were studied. The glass systems in a function of concentration GeO and CaO/SrO/BaO which was partially or totally replaced by CaF/SrF/BaF were synthesized. The visible luminescence spectra for obtained glasses were registered and value of parameters such as ratio of yellow-to-blue luminescence and the Commission Internationale de I'Eclairage (CIE) chromaticity coordinates (x, y) were analyzed in detail. The Y/B increase from 2.97 to 3.8 in systems with increasing of concentration glass former (GeO), whereas ratio Y/B slightly decreases when the of content fluoride glass modifiers increases. The obtained results confirm that impact on visible luminescence of lead-free borate glasses doped with Dy ions is greater for glass former than glass modifier. Moreover, studied systems can be used for optoelectronic as yellowish emitters.
研究了掺杂镝离子的无铅玻璃在玻璃形成剂和玻璃改性剂作用下的光谱特性。合成了以GeO以及部分或全部被CaF/SrF/BaF取代的CaO/SrO/BaO为浓度函数的玻璃体系。记录了所得玻璃的可见发光光谱，并详细分析了黄蓝发光比和国际照明委员会（CIE）色度坐标（x，y）等参数值。随着玻璃形成剂（GeO）浓度的增加，体系中Y/B从2.97增加到3.8，而当氟化物玻璃改性剂含量增加时，Y/B比略有下降。所得结果证实，对于掺杂镝离子的无铅硼酸盐玻璃，玻璃形成剂对可见发光的影响大于玻璃改性剂。此外，所研究的体系可作为淡黄色发射体用于光电子学领域。
