Tunable luminescence from Ce-doped aluminoborosilicate glasses

• Published in: Journal of rare earths Vol. 32; no. 3; pp. 217 - 220
• Main Authors: Malchukova, E., Boizot, B.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2014; Elsevier
• Subjects: Aluminum oxide; Ce-doped glass; Ce掺杂; Chemical Sciences; different RE sites; Engineering Sciences; Excitation; Glass; Light-emitting diodes; Luminescence; Material chemistry; Mechanics; Rare earth metals; rare earths; tunable emission; Tuning; Wavelengths; 发光光谱; 可调; 激光激发; 玻璃制备; 硼硅酸盐; 蓝色发光二极管; 铝硅酸盐玻璃; Ce-doped glass; different RE sites; tunable emission; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(14)60055-7

A series of aluminoborosilicate glasses were prepared amounts of SiO2, A1203, H3BO3, Na2CO3, and ZrO2 with adding using the melt-quenching technique for mixture of stoichiometric of different amounts of CeO〉 The samples were investigated by means of luminescence spectroscopy. Tunable luminescence from violet to blue/green was observed from these glasses with different Xe-lamp excitation wavelengths ranging from 370 to 480 nm as well as with laser excitation of 266 and 355 nm. Moreover it was found that the possibility of tuning the light by changing of excitation wavelength was not unique. The same effect was observed by adjusting conditions for luminescence measurements as well as under exposure to β-irradiation. The obtained phenomena could be explained taking into account structural characteristics of this glass and it could be concluded that tunable luminescence results from the presence of different Ce-sites the glass matrix. Thus the results suggest that Ce-doped glasses could be considered as conversion materials for blue light-emitting diode chips to generate white light-emitting diodes.