Luminescence study of mixed valence Eu-doped nanocrystalline glass-ceramics

被引：18

作者：

Bagga, Ruchika ^{[1
]}

Achanta, Venu Gopal ^{[2
]}

Goel, Ashutosh ^{[3
]}

Ferreira, Jose M. F. ^{[4
]}

Singh, Narinder Pal ^{[5
]}

Singh, Davinder Paul ^{[6
]}

Contini, Vittoria ^{[7
]}

Falconieri, Mauro ^{[7
]}

Sharma, Gopi ^{[1
]}

机构：

[1] Kanya Maha Vidyalaya, Dept Phys, Jalandhar, India

[2] TIFR, Dept Condensed Matter Phys, Bombay, Maharashtra, India

[3] R&D Sterlite Technol Ltd, Aurangabad 431136, Maharashtra, India

[4] Univ Aveiro, CICECO, Dept Ceram & Glass Engn, P-3810193 Aveiro, Portugal

[5] Punjab Tech Univ, Jalandhar, India

[6] Guru Nanak Dev Univ, Dept Phys, Amritsar, Punjab, India

[7] ENEA CR Casaccia, I-00123 Rome, Italy

来源：

OPTICAL MATERIALS | 2013年 / 36卷 / 02期

关键词：

Rare earth; Oxyfluoride glasses; Nano-crystalline glass-ceramics; Photoluminescence spectroscopy; FTIR spectroscopy; STRUCTURAL INVESTIGATIONS; OXYFLUORIDE GLASSES; FLUORIDE GLASSES; TRANSPARENT; PHOSPHORS; IONS; BLUE; AIR; PHOTOLUMINESCENCE; SPECTROSCOPY;

D O I：

10.1016/j.optmat.2013.08.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Eu-doped nanocrystalline NaAlSiO4/NaY9Si6O26 glass-ceramics have been prepared by controlled crystallization of melt quenched bulk glasses. XRD, SEM and FTIR spectroscopy techniques were employed to characterize the crystallization process and the structural properties of the precursor glass and corresponding glass-ceramics. The formation of divalent europium (Eu2+) from Eu3+ ions during high temperature synthesis under ambient atmosphere was analyzed by photoluminescence spectroscopy and is discussed using the optical basicity model. The observed luminescence properties of Eu: NaY9Si6O26 are compared with that of Eu: beta-PbF2 nanocrystals and their marked differences are discussed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：198 / 206

页数：9

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