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Solar Blind (Al,Ga)N Metal-Semiconductor-Metal Devices for High Performance Flame Detection

Published online by Cambridge University Press:  01 February 2011

Mauro Mosca
Affiliation:
THALES Research and Technology, Domaine de Corbeville, F-91404 Orsay Cedex, France
Jean-Luc Reverchon
Affiliation:
THALES Research and Technology, Domaine de Corbeville, F-91404 Orsay Cedex, France
Nicolas Grandjean
Affiliation:
CRHEA, CNRS, rue Bernard Gregory, Sophia Antipolis, F-06560 Valbonne, France
Franck Omnès
Affiliation:
CRHEA, CNRS, rue Bernard Gregory, Sophia Antipolis, F-06560 Valbonne, France
Jean-Yves Duboz
Affiliation:
CRHEA, CNRS, rue Bernard Gregory, Sophia Antipolis, F-06560 Valbonne, France
Isabelle Ribet
Affiliation:
ONERA, Office National d'Etude et de Recherches Aérospatiales, chemin de la hunière, F-91761 Palaiseau, France
Michel Tauvy
Affiliation:
ONERA, Office National d'Etude et de Recherches Aérospatiales, chemin de la hunière, F-91761 Palaiseau, France
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Abstract

In this work we report on solar blind (Al,Ga)N photovoltaic metal-semiconductor-metal (MSM) detectors with a cutoff wavelength as short as ∼270 nm. (Al,Ga)N heterostructures, that allow backside illumination, were grown on sapphire substrates by both metalorganic chemical vapor deposition (MOCVD) and molecular beam epitaxy (MBE). We observed that both the interdigitated electrodes and the contact areas contribute to the overall photocurrent. In order to avoid the parasitic current due to the contact pads, we developed a new process where the electrodes are deposited on the (Al,Ga)N surface whereas the contact pads are deposited on an insulator (dielectric) layer besides the electrodes. Some layers develop microcracks related to excess stress. In that case, we showed that both the dark current and the responsivity strongly depend on the crack density. By using our two-level process, we could reduce the parasitic effects of cracks on the dark current. Several dielectrics were tested and our results are reported; values of dark current < 10 fA have been measured at 10 V bias voltage. An extremely high performance can then be reached in these ultraviolet solar blind detectors.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

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References

1. Razeghi, M. and Rogalski, A, J. Appl. Phys. 79, 7433 (1996).CrossRefGoogle Scholar
2. Gil, B., Group III Nitride Semiconductor Compounds: Physics and Application, (Clarendon Press, Oxford, 1998).Google Scholar
3. Grandjean, N., Massies, J., Vennéguès, P., Leroux, M., Demangeot, F., Renucci, M., and Frandon, J., J. Appl. Phys. 83, 1379 (1998).CrossRefGoogle Scholar
4. Omnès, F., Marenco, N., Beaumont, B., Mierry, Ph. de, Monroy, E., Calle, F., and Muñoz, E., J. Appl. Phys. 86, 5286 (1999).CrossRefGoogle Scholar
5. Tan, W.S., Hill, G., Houston, P.A., Low, M.W., Parbrook, P.J., and Airey, R.J. (Electron Devices for Microwave and Optoelectronic Applications, 10th IEEE International Symposium, 2002) pp. 130135.Google Scholar

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Solar Blind (Al,Ga)N Metal-Semiconductor-Metal Devices for High Performance Flame Detection
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