DOI: 10.1063/1.118450. Al x Ga 1−x N (0<b>⩽</b>x⩽1) ultraviolet photodetectors grown on sapphire by metal-organic chemical-vapor deposition

Al x Ga 1−x N (0⩽x⩽1) ultraviolet photodetectors grown on sapphire by metal-organic chemical-vapor deposition

10.1063/1.118450

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

Al x Ga 1−x N (0⩽x⩽1) ultraviolet photoconductors with cutoff wavelengths from 365 to 200 nm have been fabricated and characterized. The maximum detectivity reached 5.5×108 cmHz1/2/W at a modulating frequency of 14 Hz. The effective majority carrier lifetime in AlxGa1−xN materials, derived from frequency-dependent photoconductivity measurements, has been estimated to be from 6 to 35 ms. The frequency-dependent noise spectrum shows that it is dominated by Johnson noise at high frequencies for low-Al-composition samples.

Bibliography

Walker, D., Zhang, X., Saxler, A., Kung, P., Xu, J., & Razeghi, M. (1997). Al x Ga 1âx N (0â©½xâ©½1) ultraviolet photodetectors grown on sapphire by metal-organic chemical-vapor deposition. Applied Physics Letters, 70(8), 949â951.

Authors 6

D. Walker (first)
X. Zhang (additional)
A. Saxler (additional)
P. Kung (additional)
J. Xu (additional)
M. Razeghi (additional)

References 5 Referenced 106

10.1063/1.115597 / Appl. Phys. Lett. (1996)
10.1063/1.115036 / Appl. Phys. Lett. (1995)
10.1063/1.362677 / J. Appl. Phys. (1996)
10.1063/1.115385 / Appl. Phys. Lett. (1995)
10.1063/1.352220 / J. Appl. Phys. (1992)

Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:29 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 7:16 a.m.)
Indexed	5 months ago (March 24, 2025, 2:31 a.m.)
Issued	28 years, 6 months ago (Feb. 24, 1997)
Published	28 years, 6 months ago (Feb. 24, 1997)
Published Print	28 years, 6 months ago (Feb. 24, 1997)

Funders 0

None

BibTeX

@article{Walker_1997, title={Al x Ga 1−x N (0⩽x⩽1) ultraviolet photodetectors grown on sapphire by metal-organic chemical-vapor deposition}, volume={70}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.118450}, DOI={10.1063/1.118450}, number={8}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Walker, D. and Zhang, X. and Saxler, A. and Kung, P. and Xu, J. and Razeghi, M.}, year={1997}, month=feb, pages={949–951} }

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