Illumination and annealing characteristics of two-dimensional electron gas systems in metal-organic vapor-phase epitaxy grown [Al.sub.x][Ga.sub.1-x]N/AlN/GaN heterostructures

Authors :: Biyikli, N.
Ozgur, U.
X. Ni
Y. Fu
Morkoc, H.
Kurdak, C.
Source :: Journal of Applied Physics. Nov 15, 2006, Vol. 100 Issue 10, p103702-1, 6 p.
Publication Year :: 2006
Abstract: The persistent photoconductivity (PPC) effect in [Al.sub.x][Ga.sub.1-x]N/AlN/GaN heterostructures with was studied with two different Al compositions. The PPC effect became fairly weak for illumination wavelengths longer than approximately 530nm and showed a more complex response with an initial negative photoconductivity in the infrared region.

Subjects :: Hall effect -- Research
Aluminum nitride -- Optical properties
Aluminum nitride -- Electric properties
Photoconductivity -- Research
Gallium compounds -- Electric properties
Gallium compounds -- Optical properties
Physics

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