Impacts of intrinsic defects on luminescence properties of CuAlS 2

Yuichiro Kuroki; Tomoichiro Okamoto; Masasuke Takata; Minoru Osada

doi:10.1063/1.2400101

Impacts of intrinsic defects on luminescence properties of CuAlS ₂

Yuichiro Kuroki^*, Tomoichiro Okamoto, Masasuke Takata, Minoru Osada

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

The authors report on Raman scattering of CuAl S2 in order to study the influences of intrinsic defects on luminescence properties. The A1 mode is dominated in stoichiometric samples, whereas sulfur-poor conditions prepared at high temperatures (≥800 °C) cause defect-specific shift and broadening. They also find that additional mode (at 330 cm-1) caused by antisite defects is resonated at 2.16 eV excitation, in accordance with visible luminescence attributed to donor-acceptor pair (DAP) emission in photoluminescence. These results suggest that the DAP emissions may be caused by the defect complexes such as AlCu - VCu and VS - VCu, which reduces ultraviolet excitonic emission in this system.

Original language	English
Article number	221117
Journal	Applied Physics Letters
Volume	89
Issue number	22
DOIs	https://doi.org/10.1063/1.2400101
Publication status	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.2400101

Cite this

@article{b392dc4aa2fd4edb9b4764414eb5e01f,

title = "Impacts of intrinsic defects on luminescence properties of CuAlS 2 ",

abstract = "The authors report on Raman scattering of CuAl S2 in order to study the influences of intrinsic defects on luminescence properties. The A1 mode is dominated in stoichiometric samples, whereas sulfur-poor conditions prepared at high temperatures (≥800 °C) cause defect-specific shift and broadening. They also find that additional mode (at 330 cm-1) caused by antisite defects is resonated at 2.16 eV excitation, in accordance with visible luminescence attributed to donor-acceptor pair (DAP) emission in photoluminescence. These results suggest that the DAP emissions may be caused by the defect complexes such as AlCu - VCu and VS - VCu, which reduces ultraviolet excitonic emission in this system.",

author = "Yuichiro Kuroki and Tomoichiro Okamoto and Masasuke Takata and Minoru Osada",

year = "2006",

doi = "10.1063/1.2400101",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "22",

}

TY - JOUR

T1 - Impacts of intrinsic defects on luminescence properties of CuAlS 2

AU - Kuroki, Yuichiro

AU - Okamoto, Tomoichiro

AU - Takata, Masasuke

AU - Osada, Minoru

PY - 2006

Y1 - 2006

N2 - The authors report on Raman scattering of CuAl S2 in order to study the influences of intrinsic defects on luminescence properties. The A1 mode is dominated in stoichiometric samples, whereas sulfur-poor conditions prepared at high temperatures (≥800 °C) cause defect-specific shift and broadening. They also find that additional mode (at 330 cm-1) caused by antisite defects is resonated at 2.16 eV excitation, in accordance with visible luminescence attributed to donor-acceptor pair (DAP) emission in photoluminescence. These results suggest that the DAP emissions may be caused by the defect complexes such as AlCu - VCu and VS - VCu, which reduces ultraviolet excitonic emission in this system.

AB - The authors report on Raman scattering of CuAl S2 in order to study the influences of intrinsic defects on luminescence properties. The A1 mode is dominated in stoichiometric samples, whereas sulfur-poor conditions prepared at high temperatures (≥800 °C) cause defect-specific shift and broadening. They also find that additional mode (at 330 cm-1) caused by antisite defects is resonated at 2.16 eV excitation, in accordance with visible luminescence attributed to donor-acceptor pair (DAP) emission in photoluminescence. These results suggest that the DAP emissions may be caused by the defect complexes such as AlCu - VCu and VS - VCu, which reduces ultraviolet excitonic emission in this system.

UR - http://www.scopus.com/inward/record.url?scp=33751562455&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33751562455&partnerID=8YFLogxK

U2 - 10.1063/1.2400101

DO - 10.1063/1.2400101

M3 - Article

AN - SCOPUS:33751562455

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 22

M1 - 221117

ER -

Impacts of intrinsic defects on luminescence properties of CuAlS ₂

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this