Local structure and its effect on the oscillator strengths and emission properties of Ho3+ in chalcohalide glasses

Tae Hoon Lee; Yong Kon Kwon; Jong Heo

doi:10.1016/j.jnoncrysol.2008.01.017

Local structure and its effect on the oscillator strengths and emission properties of Ho³⁺ in chalcohalide glasses

Tae Hoon Lee, Yong Kon Kwon, Jong Heo

Pohang University of Science and Technology

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

The formation of structural units in Ge-Ga-S glass with CsBr addition and its effect on the optical band gap and several spectroscopic properties of Ho³⁺ were investigated. The optical band gap of the host glasses and the oscillator strengths of Ho³⁺ absorption decreased sharply when the ratio of CsBr/Ga became close to unity. These property changes were associated with the formation of structural units of [GaS_3/2Br]^- and they have a crucial effect on the changes of the local structure around Ho³⁺ ions. The local structure was not sensitive to the As or Br addition but was critically dependent on the concentration of CsBr.

Original language	English
Pages (from-to)	3107-3112
Number of pages	6
Journal	Journal of Non-Crystalline Solids
Volume	354
Issue number	27
DOIs	https://doi.org/10.1016/j.jnoncrysol.2008.01.017
State	Published - 1 Jun 2008

Keywords

Absorption
Chalcohalides
Luminescence
Short-range order

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10.1016/j.jnoncrysol.2008.01.017

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title = "Local structure and its effect on the oscillator strengths and emission properties of Ho3+ in chalcohalide glasses",

abstract = "The formation of structural units in Ge-Ga-S glass with CsBr addition and its effect on the optical band gap and several spectroscopic properties of Ho3+ were investigated. The optical band gap of the host glasses and the oscillator strengths of Ho3+ absorption decreased sharply when the ratio of CsBr/Ga became close to unity. These property changes were associated with the formation of structural units of [GaS3/2Br]- and they have a crucial effect on the changes of the local structure around Ho3+ ions. The local structure was not sensitive to the As or Br addition but was critically dependent on the concentration of CsBr.",

keywords = "Absorption, Chalcohalides, Luminescence, Short-range order",

author = "Lee, {Tae Hoon} and Kwon, {Yong Kon} and Jong Heo",

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T1 - Local structure and its effect on the oscillator strengths and emission properties of Ho3+ in chalcohalide glasses

AU - Lee, Tae Hoon

AU - Kwon, Yong Kon

AU - Heo, Jong

PY - 2008/6/1

Y1 - 2008/6/1

N2 - The formation of structural units in Ge-Ga-S glass with CsBr addition and its effect on the optical band gap and several spectroscopic properties of Ho3+ were investigated. The optical band gap of the host glasses and the oscillator strengths of Ho3+ absorption decreased sharply when the ratio of CsBr/Ga became close to unity. These property changes were associated with the formation of structural units of [GaS3/2Br]- and they have a crucial effect on the changes of the local structure around Ho3+ ions. The local structure was not sensitive to the As or Br addition but was critically dependent on the concentration of CsBr.

AB - The formation of structural units in Ge-Ga-S glass with CsBr addition and its effect on the optical band gap and several spectroscopic properties of Ho3+ were investigated. The optical band gap of the host glasses and the oscillator strengths of Ho3+ absorption decreased sharply when the ratio of CsBr/Ga became close to unity. These property changes were associated with the formation of structural units of [GaS3/2Br]- and they have a crucial effect on the changes of the local structure around Ho3+ ions. The local structure was not sensitive to the As or Br addition but was critically dependent on the concentration of CsBr.

KW - Absorption

KW - Chalcohalides

KW - Luminescence

KW - Short-range order

UR - http://www.scopus.com/inward/record.url?scp=43049176668&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2008.01.017

DO - 10.1016/j.jnoncrysol.2008.01.017

M3 - Article

AN - SCOPUS:43049176668

SN - 0022-3093

VL - 354

SP - 3107

EP - 3112

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

IS - 27

ER -

Local structure and its effect on the oscillator strengths and emission properties of Ho³⁺ in chalcohalide glasses

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Keywords

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