Size effect on AlxGa1-xN/GaN nanowire at low temperature and high magnetic field

by Chen, Chi-hon

Abstract (Summary)
We measured the electronic properties of Two Dimensional Electron Gas in AlxGa1-xN/GaN ¡]x=0.18¡^heterostructures at low temperature and high magnetic field by Shubnikov-de Hass(SdH) for different width. First, we measurement the electronic properties by Ven der Pauw at 300 K and 77 K. For the series sample¡Awe found that 80 nm,100 nm,900 nm sample have PPC (positive persistent photoconductivity effect) properties. The other samples did not change carrier concentration obviously for long illumination time.
Bibliographical Information:

Advisor:Ikai Lo; Ming-Kwei Lee; Jih-Chen Chiang

School:National Sun Yat-Sen University

School Location:China - Taiwan

Source Type:Master's Thesis

Keywords:ppc effect


Date of Publication:07/18/2008

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