Effect of sapphire-substrate thickness on the curvature of thick GaN films grown by hydride vapor phase epitaxy

Paskova T, Becker L, Böttcher T, Hommel D, Paskov P, Monemar B (2007)


Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2007

Journal

Publisher: American Institute of Physics (AIP)

Pages Range: 1-4

Article Number: 123507

Journal Issue: 102

DOI: 10.1063/1.2817955

Abstract

The effect of sapphire-substrate thickness on the curvature and stress in thick hydride vapor phase
epitaxial GaN films was studied by high-resolution x-ray diffraction at variable temperatures. The
curvature was found to have the maximum value for comparable thicknesses of the film and the
substrate, while the stress at the film surface decreases with increasing film thickness and increases
with increasing substrate thickness, which is in very good agreement with the simulation results.
The curvature at the growth temperature was found to be strongly influenced by the value of the
intrinsic tensile strain, which is determined by the film/substrate thickness ratio.

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How to cite

APA:

Paskova, T., Becker, L., Böttcher, T., Hommel, D., Paskov, P., & Monemar, B. (2007). Effect of sapphire-substrate thickness on the curvature of thick GaN films grown by hydride vapor phase epitaxy. Journal of Applied Physics, 102, 1-4. https://dx.doi.org/10.1063/1.2817955

MLA:

Paskova, Tania, et al. "Effect of sapphire-substrate thickness on the curvature of thick GaN films grown by hydride vapor phase epitaxy." Journal of Applied Physics 102 (2007): 1-4.

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