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Schottky barrier photodetector based on Mg-doped p-type GaN films
Abstract
In this letter we report the fabrication and characterization of Schottky barrier photodetectors on p-type GaN films. These films were grown over basal plane sapphire substrates using low pressure metalorganic chemical vapor deposition and magnesium as the p-type dopant. The current-voltage and capacitance-voltage characteristics were measured for Ti/Au Schottky barriers for a film with a p doping of 7×1017 cm−3. We measured a 1.5 V forward turn on and a 3 V reverse breakdown. The zero bias responsivity of a detector with 1 mm2 area was measured to be 0.13 A/W. For these photovoltaic detectors, the photoresponse was nearly constant from 200 to 365 nm and fell sharply by several orders of magnitude for wavelengths above 365 nm.
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Citations
Cites
High electron mobility transistor based on a GaN-Al x Ga1−x N heterojunction
Asif Khan, M., Bhattarai, A., Kuznia, J. N., & Olson, D. T. (1993) · Applied Physics Letters · doi:10.1063/1.109775 · Cited by 911
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Plasmon resonance enhanced multicolour photodetection by graphene
Liu, Y., Cheng, R., Liao, L., Zhou, H., Bai, J., Liu, G., Liu, L., Huang, Y., & Duan, X. (2011) · Nature Communications · doi:10.1038/ncomms1589 · Cited by 745
Growth of Group III Nitrides. A Review of Precursors and Techniques
Neumayer, D. A., & Ekerdt, J. G. (1996) · Chemistry of Materials · doi:10.1021/cm950108r · Cited by 313
Metadata
- Authors
- Asif Khan, M., Kuznia, J. N., Olson, D. T., Blasingame, M., & Bhattarai, A. R.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 1993-11-01
- Volume
- 63
- Issue
- 18
- Pages
- 2455-2456
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2052476688
- Cited by
- 188
- References
- 1
- FWCI
- 4.94
- Type
- journal article
- Language
- en
- Open access
- closed
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- Asif Khan, M., Kuznia, J. N., Olson, D. T., Blasingame, M., & Bhattarai, A. R. (1993). Schottky barrier photodetector based on Mg-doped p-type GaN films. Applied Physics Letters. https://doi.org/10.1063/1.110473
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