Exciton-phonon interaction in CuAlS2 powders

Y. Kuroki; M. Osada; A. Kato; T. Okamoto; M. Takata

Exciton-phonon interaction in CuAlS₂ powders

Y. Kuroki, M. Osada, A. Kato, T. Okamoto, M. Takata

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

High-resolution photoluminescence (PL) measurement was carried out for copper aluminum disulfide (CuAlS₂) powder at 12 K. Several sharp PL lines were observed in the range from 3.580 to 3.320 eV. The emission peaks at photon energies from 3.566 to 3.459 eV were attributed to free-exciton (FE) and bound-cxcitons (BE). The several weak emissions at below 3.476 eV were clarified to be phonon replicas (PR) by Raman scattering and in the viewpoint of exciton-phonon interaction. We observed the one, two and three-phonon replicas related to E_{(LO, TO)} and B_{2(L.O, TO} vibrational modes in chalcopyrite structure. It was suggested that the strong interaction between excitons and optical phonons took place in obtained CuAlS₂ powder.

Original language	English
Title of host publication	Advanced Materials Research
Pages	175-178
Number of pages	4
Volume	11-12
Publication status	Published - 2006
Externally published	Yes
Event	AICAM 2005 - Asian International Conference on Advanced Materials - Beijing, China Duration: 2005 Nov 3 → 2005 Nov 5

Publication series

Name	Advanced Materials Research
Volume	11-12
ISSN (Print)	10226680

Other

Other	AICAM 2005 - Asian International Conference on Advanced Materials
Country	China
City	Beijing
Period	05/11/3 → 05/11/5

Keywords

Chalcopyrite
CuAlS
Exciton-phonon interaction
Photoluminescence
Raman spectroscopy

ASJC Scopus subject areas

Engineering(all)

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Cite this

@inproceedings{2cedd3cbecb9496998ec1f580d23c89a,

title = "Exciton-phonon interaction in CuAlS2 powders",

abstract = "High-resolution photoluminescence (PL) measurement was carried out for copper aluminum disulfide (CuAlS2) powder at 12 K. Several sharp PL lines were observed in the range from 3.580 to 3.320 eV. The emission peaks at photon energies from 3.566 to 3.459 eV were attributed to free-exciton (FE) and bound-cxcitons (BE). The several weak emissions at below 3.476 eV were clarified to be phonon replicas (PR) by Raman scattering and in the viewpoint of exciton-phonon interaction. We observed the one, two and three-phonon replicas related to E(LO, TO) and B2(L.O, TO vibrational modes in chalcopyrite structure. It was suggested that the strong interaction between excitons and optical phonons took place in obtained CuAlS2 powder.",

keywords = "Chalcopyrite, CuAlS, Exciton-phonon interaction, Photoluminescence, Raman spectroscopy",

author = "Y. Kuroki and M. Osada and A. Kato and T. Okamoto and M. Takata",

year = "2006",

language = "English",

isbn = "0878499792",

volume = "11-12",

series = "Advanced Materials Research",

pages = "175--178",

booktitle = "Advanced Materials Research",

note = "AICAM 2005 - Asian International Conference on Advanced Materials ; Conference date: 03-11-2005 Through 05-11-2005",

}

TY - GEN

T1 - Exciton-phonon interaction in CuAlS2 powders

AU - Kuroki, Y.

AU - Osada, M.

AU - Kato, A.

AU - Okamoto, T.

AU - Takata, M.

PY - 2006

Y1 - 2006

N2 - High-resolution photoluminescence (PL) measurement was carried out for copper aluminum disulfide (CuAlS2) powder at 12 K. Several sharp PL lines were observed in the range from 3.580 to 3.320 eV. The emission peaks at photon energies from 3.566 to 3.459 eV were attributed to free-exciton (FE) and bound-cxcitons (BE). The several weak emissions at below 3.476 eV were clarified to be phonon replicas (PR) by Raman scattering and in the viewpoint of exciton-phonon interaction. We observed the one, two and three-phonon replicas related to E(LO, TO) and B2(L.O, TO vibrational modes in chalcopyrite structure. It was suggested that the strong interaction between excitons and optical phonons took place in obtained CuAlS2 powder.

AB - High-resolution photoluminescence (PL) measurement was carried out for copper aluminum disulfide (CuAlS2) powder at 12 K. Several sharp PL lines were observed in the range from 3.580 to 3.320 eV. The emission peaks at photon energies from 3.566 to 3.459 eV were attributed to free-exciton (FE) and bound-cxcitons (BE). The several weak emissions at below 3.476 eV were clarified to be phonon replicas (PR) by Raman scattering and in the viewpoint of exciton-phonon interaction. We observed the one, two and three-phonon replicas related to E(LO, TO) and B2(L.O, TO vibrational modes in chalcopyrite structure. It was suggested that the strong interaction between excitons and optical phonons took place in obtained CuAlS2 powder.

KW - Chalcopyrite

KW - CuAlS

KW - Exciton-phonon interaction

KW - Photoluminescence

KW - Raman spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=33745957231&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33745957231&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33745957231

SN - 0878499792

SN - 9780878499793

VL - 11-12

T3 - Advanced Materials Research

SP - 175

EP - 178

BT - Advanced Materials Research

T2 - AICAM 2005 - Asian International Conference on Advanced Materials

Y2 - 3 November 2005 through 5 November 2005

ER -