Defect-property correlations in garnet crystals: The electrical conductivity and defect structure of luminescent cerium-doped yttrium aluminum garnet

S. R. Rotman; R. P. Tandon; H. L. Tuller

doi:10.1063/1.334430

Defect-property correlations in garnet crystals: The electrical conductivity and defect structure of luminescent cerium-doped yttrium aluminum garnet

S. R. Rotman
, R. P. Tandon
, H. L. Tuller

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

48 Scopus citations

Abstract

The conduction mechanisms in cerium-doped yttrium aluminum garnet (Ce:YAG) have been studied as a function of temperature and P_O2. ac conductivity and ionic transference measurements show that Ce:YAG is a mixed ionic-electronic conductor with an ionic conductivity characterized by an activation energy of 2.3 eV. A derived thermal band-gap energy of 6.1 eV compares favorably with the optically measured band gap. Conductivity and transference measurements support a defect model with a fixed number of doubly-ionized oxygen vacancies as the primary defect; the energy to produce such vacancies is calculated to be 7.8 eV.

Original language	English
Pages (from-to)	1951-1955
Number of pages	5
Journal	Journal of Applied Physics
Volume	57
Issue number	6
DOIs	https://doi.org/10.1063/1.334430
State	Published - 1 Dec 1985
Externally published	Yes

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General Physics and Astronomy

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title = "Defect-property correlations in garnet crystals: The electrical conductivity and defect structure of luminescent cerium-doped yttrium aluminum garnet",

abstract = "The conduction mechanisms in cerium-doped yttrium aluminum garnet (Ce:YAG) have been studied as a function of temperature and PO2. ac conductivity and ionic transference measurements show that Ce:YAG is a mixed ionic-electronic conductor with an ionic conductivity characterized by an activation energy of 2.3 eV. A derived thermal band-gap energy of 6.1 eV compares favorably with the optically measured band gap. Conductivity and transference measurements support a defect model with a fixed number of doubly-ionized oxygen vacancies as the primary defect; the energy to produce such vacancies is calculated to be 7.8 eV.",

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T2 - The electrical conductivity and defect structure of luminescent cerium-doped yttrium aluminum garnet

AU - Rotman, S. R.

AU - Tandon, R. P.

AU - Tuller, H. L.

PY - 1985/12/1

Y1 - 1985/12/1

N2 - The conduction mechanisms in cerium-doped yttrium aluminum garnet (Ce:YAG) have been studied as a function of temperature and PO2. ac conductivity and ionic transference measurements show that Ce:YAG is a mixed ionic-electronic conductor with an ionic conductivity characterized by an activation energy of 2.3 eV. A derived thermal band-gap energy of 6.1 eV compares favorably with the optically measured band gap. Conductivity and transference measurements support a defect model with a fixed number of doubly-ionized oxygen vacancies as the primary defect; the energy to produce such vacancies is calculated to be 7.8 eV.

AB - The conduction mechanisms in cerium-doped yttrium aluminum garnet (Ce:YAG) have been studied as a function of temperature and PO2. ac conductivity and ionic transference measurements show that Ce:YAG is a mixed ionic-electronic conductor with an ionic conductivity characterized by an activation energy of 2.3 eV. A derived thermal band-gap energy of 6.1 eV compares favorably with the optically measured band gap. Conductivity and transference measurements support a defect model with a fixed number of doubly-ionized oxygen vacancies as the primary defect; the energy to produce such vacancies is calculated to be 7.8 eV.

UR - https://www.scopus.com/pages/publications/0000682554

U2 - 10.1063/1.334430

DO - 10.1063/1.334430

M3 - Article

AN - SCOPUS:0000682554

SN - 0021-8979

VL - 57

SP - 1951

EP - 1955

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 6

ER -

Defect-property correlations in garnet crystals: The electrical conductivity and defect structure of luminescent cerium-doped yttrium aluminum garnet

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