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Absorption spectra of Co2+ in AgInS2 orthorhombic single crystals

Published online by Cambridge University Press:  31 January 2011

Hidong Kim
Affiliation:
Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305–701, Republic of Korea
Seok-Joo Lee
Affiliation:
Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305–701, Republic of Korea
Jae-Eun Kim
Affiliation:
Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305–701, Republic of Korea
Hae Yong Park
Affiliation:
Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305–701, Republic of Korea
Seok-Kyun Oh
Affiliation:
Korea Basic Science Institute and Department of Physics, Chonnam National University, Kwangju 500–757, Republic of Korea
Wha-Tek Kim
Affiliation:
Korea Basic Science Institute and Department of Physics, Chonnam National University, Kwangju 500–757, Republic of Korea
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Abstract

The optical absorption spectra of AgInS2:Co2+ single crystals grown by chemical transport reaction using iodine as a transporting medium have been studied at 6 K. The peaks can be explained by the transitions of Co2+ in the Td symmetry with the spin-orbit coupling, which means that the deviations of the atomic sites from those of the ideal wurtzite structure can be considered negligibly small. The consideration of both the crystal field parameters and the electronegativity difference between atoms may indicate that Co atoms substitute In atoms.

Type
Articles
Copyright
Copyright © Materials Research Society 2001

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References

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