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Gary C. Farlow
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Wright State University
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Articles
Conference Proceedings
Articles
(13)
Article
Electric Field Enhancement of Electron Emission Rates from Z(1 ...
Journal of Applied Physics (2009)
A. O. Evwaraye, S. R. Smith, William C. Mitchel and Gary C. Farlow
Z1/2 defect centers were produced by irradiating 4H-SiC bulk samples with 1 MeV electrons at room temperature. The emission rate ...
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Article
Effects of Electron-Irradiation on Electrical Properties of AlGaN/GaN Schottky ...
Journal of Applied Physics (2009)
Z-Q. Fang, Gary C. Farlow, B. Claflin, David C. Look, et al.
Effects of 1 MeV electron-irradiation at room temperature on the electrical properties of AlGaN/GaN heterostructures, including leakage currents, threshold voltages, ...
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Article
In-Implanted ZnO: Controlled Degenerate Surface Layer
Journal of Vacuum Science & Technology B (2009)
David C. Look, Gary C. Farlow, F. Yaqoob, L. H. Vanamurthy, et al.
In was implanted into bulk ZnO creating a square profile with a thickness of about 100 nm and an In ...
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Article
Defect Studies in Electron-Irradiated ZnO and GaN
Physica B-Condensed Matter (2007)
David C. Look, F. Tuomisto and Gary C. Farlow
We present experimental results obtained with positron annihilation spectroscopy in room-temperature electron-irradiated n-type ZnO and GaN. The cation vacancies act ...
OpenURL
Article
Introduction and Recovery of Ga and N Sublattice Defects in ...
Physical Review B (2007)
F. Tuomisto, V. Ranki, David C. Look and Gary C. Farlow
We have used positron annihilation spectroscopy to study the introduction and recovery of point defects introduced by 0.45 and 2 ...
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Article
Effects of Electron Irradiation on Deep Centers in High-Purity Semi-insulating ...
Journal of Electronic Materials (2007)
Z-Q. Fang, Bruce Claflin, C. Look and Gary C. Farlow
Many point-defect-related centers have been investigated in electron-irradiated 6H-SiC by deep-level transient spectroscopy (DLTS). Most of them are believed to ...
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Article
Electron Irradiation Induced Deep Centers in Hydrothermally Grown ZnO
Journal of Applied Physics (2007)
Z-Q. Fang, B. Claflin, David C. Look and Gary C. Farlow
An n-type hydrothermally grown ZnO sample becomes semi-insulating (ρ~108 Ω cm) after 1-MeV electron-irradiation. Deep traps produced by the irradiation ...
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Article
Evidence for Native-Defect Donors in n-Type ZnO
Physical Review Letters (2005)
David C. Look, Gary C. Farlow, Pakpoom Reunchan, Sukit Limpijumnong, et al.
Recent theory has found that native defects such as the O vacancy VO and Zn interstitial ZnI have high formation ...
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Article
Introduction and Recovery of Point Defects in Electron-Irradiated ZnO
Physical Review B (2005)
F. Tuomisto, K. Saarinen, David C. Look and Gary C. Farlow
We have used positron annihilation spectroscopy to study the introduction and recovery of point defects in electron-irradiated n -type ZnO. ...
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Article
Radiation Hardness of ZnO at Low Temperatures
Semiconductor Science and Technology (2004)
Cevdet Coşkun, David C. Look, Gary C. Farlow and J. R. Sizelove
In situ Hall-effect measurements have been carried out on vapour-phase-grown, n-type ZnO irradiated with 1.0 and 1.5 MeV electrons in ...
OpenURL
Article
An Experimental Set-Up for
In Situ
Hall Measurements Under High-Energy ...
Measurement Science & Technology (2004)
Cevdet Coşkun, David C. Look, Gary C. Farlow and Zhaoqiang Fang
A dc Hall-effect apparatus, based on conventional van der Pauw specimen geometry, has been developed for in situ measurements under ...
OpenURL
Article
On the Nitrogen Vacancy in GaN
Applied Physics Letters (2003)
David C. Look, Gary C. Farlow, P. J. Drevinsky, D. F. Bliss, et al.
The dominant electrically active defect produced by 0.42 MeV electron irradiation in GaN is a 70 meV donor. Since only ...
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Article
Silicon Crystallite formation in Ion-Implanted Quartz
Applied Physics Letters (1989)
U. B. Ramabadran, H. E. Jackson and Gary C. Farlow
Rapid thermally annealed silicon‐implanted x‐cut α‐quartz samples have been examined by Rutherford backscattering and Raman microprobe spectroscopy. The data indicate ...
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Conference Proceedings
(3)
Other
Vapor-Phase Growth of High-Quality ZnO Micro- and Nano-Structures
MRS Proceedings (2007)
Monica Morales, David C. Look, Gary C. Farlow and Bruce B. Claflin
Micro- and nano-structures of ZnO have been grown on substrates from flowing carrier gases in a tube furnace. We have ...
Other
Deep Centers in Conductive and Semi-Insulating GaN
SMIC-XIII: 2004 13th International Conference on Semiconducting & Insulating Materials (2004)
Z-Q. Fang, Gary C. Farlow, Bruce Claflin and C. Look
Unintentionally doped conductive and carbon doped semi-insulating GaN films have been characterized by deep level transient spectroscopy, thermally stimulated current ...
Other
Electrical and Optical Properties of Defects and Impurities in ZnO
Physica B-Condensed Matter (2003)
David C. Look, Cevdet Coşkun, Bruce Claflin and Gary C. Farlow
Advancements in ZnO device applications have fostered much interest in the electrical and optical activities of various defects and impurities ...
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