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Extreme hypersensitivity observed from H → F transition of Dy in inorganic noncrystalline solids

Choi, YG, Curry, RJ, Park, BJ, Kim, KH, Heo, J and Hewak, DW (2005) Extreme hypersensitivity observed from H → F transition of Dy in inorganic noncrystalline solids Chemical Physics Letters, 403 (1-3). pp. 29-34.

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Abstract

Absorption transition from the ground H state to the superimposed (H, F) states, inverse transition of which leads the Dy: 1.3 μm luminescence, in noncrystalline Ge-As-S alloys is dramatically modified upon a least compositional adjustment by Ga and CsBr. The change in oscillator strength of the Dy: H → F transition in our modified glasses is more sensitive to the local coordination structure of rare-earths compared to other hypersensitive transitions that have been previously observed in solid-state dielectric hosts. Preferential highly symmetric coordination in nearest-neighbouring shell of dysprosium with bromine in [GaSBr] complexes, which are formed spontaneously during vitrification process of the host materials, is believed to be responsible for the behaviour. © 2005 Elsevier B.V. All rights reserved.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute
Authors :
NameEmailORCID
Choi, YGUNSPECIFIEDUNSPECIFIED
Curry, RJUNSPECIFIEDUNSPECIFIED
Park, BJUNSPECIFIEDUNSPECIFIED
Kim, KHUNSPECIFIEDUNSPECIFIED
Heo, JUNSPECIFIEDUNSPECIFIED
Hewak, DWUNSPECIFIEDUNSPECIFIED
Date : 14 February 2005
Identification Number : 10.1016/j.cplett.2004.12.108
Depositing User : Symplectic Elements
Date Deposited : 18 Jun 2014 11:11
Last Modified : 31 Oct 2017 16:40
URI: http://epubs.surrey.ac.uk/id/eprint/805322

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