Journal
CRYSTENGCOMM
Volume 19, Issue 1, Pages 88-92Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ce02103d
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Funding
- National Key Research Program of China [2016YFB0402401]
- Jilin Provincial Science and Technology Department [20140520117JH]
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Large lattice mismatched heterostructures In0.78Ga0.22As/GaAs were grown with a low-temperature (LT) InGaAs buffer. Misfit dislocation arrays were observed at the LT-buffer/GaAs interfaces. Transmission electron microscopy (TEM) was used to investigate the microstructures of the heterointerfaces. The relationship between misfit dislocations and strain relaxation at the interface was analysed. It was found that strain redistribution gives rise to the discrepancy of interfacial structure and misfit strain relaxation for different samples. The experimental results are in favor of the conclusion and confirm the analysis we proposed.
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