Jha, Kaushal and Vishwakarma, Amit K. and Jayasimhadri, M. and Haranath, D. and Jang, Kiwan (2018) Tb3+ and Eu3+ Doped Zinc Phosphate Glasses for Solid State Lighting Applications. In: 62ND DAE SOLID STATE PHYSICS SYMPOSIUM, DEC 26-30, 2017, Mumbai, INDIA.

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Tb3+ and Eu3+ doped zinc phosphate (ZP) glasses were prepared by conventional melt-quenching technique and their photoluminescence properties were investigated in detail. For, Tb3+ doped glasses the intense emission was at 545 nm corresponding to D-5(4)-> F-7(5) transition under 377 nm n-UV excitation. The optimized concentration for Tb3+ doped zinc phosphate glass was 3 mol% and above this concentration quenching takes place. The Eu3+ doped zinc phosphate glass revealed intense emission at 613 nm attributed to the D-5(0)-> F-7(2) transition under intense 392 nm n-UV excitation. The concentration quenching phenomenon was not observed in the Eu3+ doped ZP glasses. The CIE chromaticity coordinates for 3 mol% Tb3+ and 5 mol% Eu3+ doped ZP glasses were found to (0.283, 0.615) and (0.652, 0.331) lying in the green and red regions, respectively. The above mentioned results indicate that the prepared glass are suitable for application in the field of lighting and display devices.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Book Series: AIP Conference Proceedings Volume: 1942
Subjects: Applied Physics/Condensed Matter
Depositing User: Mr. Yogesh Joshi
Date Deposited: 06 Sep 2019 06:09
Last Modified: 06 Sep 2019 06:09
URI: http://npl.csircentral.net/id/eprint/3951

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