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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Evans, Keith
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2014Investigating the medium range order in amorphous Ta 2 O 5 coatingscitations
- 2008Growth and Characterization of High-Performance GaN and AlxGa1-xN Ultraviolet Avalanche Photodiodes Grown on GaN Substratescitations
- 2008Formation, etching and electrical characterization of a thermally grown gallium oxide on the Ga-face of a bulk GaN substratecitations
- 2007A1(x)Ga(1-x)N ultraviolet avalanche photodiodes grown on GaN substratescitations
- 2007Fabrication and device characteristics of Schottky-type bulk GaN-based "visible-blind" ultraviolet photodetectorscitations
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article
Fabrication and device characteristics of Schottky-type bulk GaN-based "visible-blind" ultraviolet photodetectors
Abstract
<p>The authors present the fabrication and characterization of vertical-geometry Schottky-type ultraviolet (UV) photodetectors based on a bulk n-GaN substrate. By using low temperature rapid thermal annealing of the semitransparent Schottky contacts (nickel with 7% vanadium), they obtained an ultralow dark current of 0.56 pA at -10 V reverse bias. A responsivity of similar to 0.09 A/W at zero bias was measured for wavelength shorter than the absorption edge of GaN, and it was found to be independent of the incident power in the range measured (50 mW/m(2)-2.2 kW/m(2)). The devices are visible blind, with an UV/visible contrast of over six orders of magnitude. An open-circuit voltage of 0.3 V was also obtained under a broadband UV illumination. (c) 2007 American Institute of Physics.</p>