Asymmetry of the Defect Structure of Semipolar GaN Grown on Si(001)


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Abstract

The defect structure of a thick (~15 μm) semipolar gallium nitride (GaN) layer grown by hydride–chloride vapor phase epitaxy on a Si(001) substrate with buffer layers has been studied by transmission electron microscopy. The asymmetry of the defect structure of GaN epilayer has been revealed and analyzed. The influence of this asymmetry on the rate of decrease in the density of threading dislocations in the growing epitaxial layer is discussed.

About the authors

A. E. Kalmykov

Ioffe Physical Technical Institute

Email: aemyasoedov88@gmail.com
Russian Federation, St. Petersburg, 194021

A. V. Myasoedov

Ioffe Physical Technical Institute

Author for correspondence.
Email: aemyasoedov88@gmail.com
Russian Federation, St. Petersburg, 194021

L. M. Sorokin

Ioffe Physical Technical Institute

Email: aemyasoedov88@gmail.com
Russian Federation, St. Petersburg, 194021

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