Excited states of the A and B free excitons in CuInSe2

Michael V. Yakushev; Franziska Luckert; Clement Faugeras; Anatoli V. Karotki; Alexander V. Mudryi; Robert W. Martin

doi:10.1143/JJAP.50.05FC03

Excited states of the A and B free excitons in CuInSe2

Michael V. Yakushev, Franziska Luckert, Clement Faugeras, Anatoli V. Karotki, Alexander V. Mudryi, Robert W. Martin

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

1 Citation (Scopus)

Abstract

CuInSe2 single crystals, grown by the vertical Bridgman technique were studied using polarisation resolved photoluminescence (PL) at cryogenic temperatures. The emission lines related to the first (n = 2) excited states for the A and B free excitons were observed in the PL spectra at 1.0481 and 1.0516 eV, respectively. The spectral positions of these lines were used to estimate accurate values for the A and B exciton binding energies (8.5 and 8.4 meV, respectively), Bohr radii (7.5 nm), band gaps (E-g(A) = 1.050 eV and E-g(B) = 1.054 eV), and the static dielectric constant (11.3) assuming the hydrogenic model.

Original language	English
Article number	05FC03
Number of pages	2
Journal	Japanese Journal of Applied Physics
Volume	50
Issue number	5
DOIs	https://doi.org/10.1143/JJAP.50.05FC03
Publication status	Published - May 2011

Keywords

optical properties
single crystals

Access to Document

10.1143/JJAP.50.05FC03

Cite this

@article{754ace0bfb3240a3820e885c81c206f7,

title = "Excited states of the A and B free excitons in CuInSe2",

abstract = "CuInSe2 single crystals, grown by the vertical Bridgman technique were studied using polarisation resolved photoluminescence (PL) at cryogenic temperatures. The emission lines related to the first (n = 2) excited states for the A and B free excitons were observed in the PL spectra at 1.0481 and 1.0516 eV, respectively. The spectral positions of these lines were used to estimate accurate values for the A and B exciton binding energies (8.5 and 8.4 meV, respectively), Bohr radii (7.5 nm), band gaps (E-g(A) = 1.050 eV and E-g(B) = 1.054 eV), and the static dielectric constant (11.3) assuming the hydrogenic model.",

keywords = "optical properties, single crystals",

author = "Yakushev, {Michael V.} and Franziska Luckert and Clement Faugeras and Karotki, {Anatoli V.} and Mudryi, {Alexander V.} and Martin, {Robert W.}",

year = "2011",

month = may,

doi = "10.1143/JJAP.50.05FC03",

language = "English",

volume = "50",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

number = "5",

}

TY - JOUR

T1 - Excited states of the A and B free excitons in CuInSe2

AU - Yakushev, Michael V.

AU - Luckert, Franziska

AU - Faugeras, Clement

AU - Karotki, Anatoli V.

AU - Mudryi, Alexander V.

AU - Martin, Robert W.

PY - 2011/5

Y1 - 2011/5

N2 - CuInSe2 single crystals, grown by the vertical Bridgman technique were studied using polarisation resolved photoluminescence (PL) at cryogenic temperatures. The emission lines related to the first (n = 2) excited states for the A and B free excitons were observed in the PL spectra at 1.0481 and 1.0516 eV, respectively. The spectral positions of these lines were used to estimate accurate values for the A and B exciton binding energies (8.5 and 8.4 meV, respectively), Bohr radii (7.5 nm), band gaps (E-g(A) = 1.050 eV and E-g(B) = 1.054 eV), and the static dielectric constant (11.3) assuming the hydrogenic model.

AB - CuInSe2 single crystals, grown by the vertical Bridgman technique were studied using polarisation resolved photoluminescence (PL) at cryogenic temperatures. The emission lines related to the first (n = 2) excited states for the A and B free excitons were observed in the PL spectra at 1.0481 and 1.0516 eV, respectively. The spectral positions of these lines were used to estimate accurate values for the A and B exciton binding energies (8.5 and 8.4 meV, respectively), Bohr radii (7.5 nm), band gaps (E-g(A) = 1.050 eV and E-g(B) = 1.054 eV), and the static dielectric constant (11.3) assuming the hydrogenic model.

KW - optical properties

KW - single crystals

UR - http://www.scopus.com/inward/record.url?scp=79957603307&partnerID=8YFLogxK

U2 - 10.1143/JJAP.50.05FC03

DO - 10.1143/JJAP.50.05FC03

M3 - Article

SN - 0021-4922

VL - 50

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 5

M1 - 05FC03

ER -

Excited states of the A and B free excitons in CuInSe2

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Magnetic Field - and Pressure - Optical Effects In CULNSE2 And CULNS2

Cite this

Excited states of the A and B free excitons in CuInSe2

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Magnetic Field - and Pressure - Optical Effects In CULNSE2 And CULNS2

Cite this