DOI: 10.1063/1.1308103. Electronic structure and optoelectronic properties of transparent <i>p</i>-type conducting CuAlO2

Electronic structure and optoelectronic properties of transparent p-type conducting CuAlO2

10.1063/1.1308103

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Electrical and optical properties of CuAlO2, a p-type conducting transparent oxide, were examined for the thin films prepared by the pulsed laser deposition technique. The indirect and direct allowed optical band gaps were evaluated to be ∼1.8 and ∼3.5 eV, respectively. The conductivity at 300 K was ∼3×10−1 S cm−1 and its temperature dependence is of the thermal-activation type (activation energy ≈0.2 eV) at temperatures &gt;220 K but is of the variable-range hopping type (log σ∝T−1/4) at &lt;220 K. It was inferred that an admixed state of Cu 3d and O 2p primarily constitutes the upper valence band, which controls transport of positive holes, from a combined information on ultraviolet photoemission spectrum with x-ray photoemission spectrum. An energy band calculation by full-potential linearized augmented plane wave method substantiated the experimental findings. The present results gave a solid basis for our working hypothesis [Nature (London) 389, 939 (1997)] for chemical design of p-type conducting transparent oxides.

Bibliography

Yanagi, H., Inoue, S., Ueda, K., Kawazoe, H., Hosono, H., & Hamada, N. (2000). Electronic structure and optoelectronic properties of transparent p-type conducting CuAlO2. Journal of Applied Physics, 88(7), 4159â4163.

Authors 6

Hiroshi Yanagi (first)
Shin-ichiro Inoue (additional)
Kazushige Ueda (additional)
Hiroshi Kawazoe (additional)
Hideo Hosono (additional)
Noriaki Hamada (additional)

References 13 Referenced 423

10.1038/40087 / Nature (London) (1997)
10.1023/A:1009924307232 / J. Electroceram. (2000)
10.1063/1.121761 / Appl. Phys. Lett. (1998)
10.1016/0022-4596(81)90377-7 / J. Solid State Chem. (1981)
{'key': '2024020517590960400_r5'}
10.1107/S0108768183002980 / Acta Crystallogr., Sect. B: Struct. Sci. (1983)
{'key': '2024020517590960400_r7'}
10.1016/0022-3697(84)90101-X / J. Phys. Chem. Solids (1984)
{'key': '2024020517590960400_r9'}
10.1021/jp984420a / J. Phys. Chem. B (1999)
10.1016/0167-2738(95)00169-7 / Solid State Ionics (1995)
10.1021/ic50098a013 / Inorg. Chem. (1971)
{'key': '2024020517590960400_r13'}

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 8:40 a.m.)
Deposited	1 year, 6 months ago (Feb. 5, 2024, 2:19 p.m.)
Indexed	3 weeks, 1 day ago (Aug. 6, 2025, 9:27 a.m.)
Issued	24 years, 10 months ago (Oct. 1, 2000)
Published	24 years, 10 months ago (Oct. 1, 2000)
Published Print	24 years, 10 months ago (Oct. 1, 2000)

Funders 0

None

BibTeX

@article{Yanagi_2000, title={Electronic structure and optoelectronic properties of transparent p-type conducting CuAlO2}, volume={88}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1308103}, DOI={10.1063/1.1308103}, number={7}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Yanagi, Hiroshi and Inoue, Shin-ichiro and Ueda, Kazushige and Kawazoe, Hiroshi and Hosono, Hideo and Hamada, Noriaki}, year={2000}, month=oct, pages={4159–4163} }

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