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Growth dynamics of selective-area-grown rutile-type SnO2 on TiO2 (110) substrate
MDR Open Deposited
We demonstrated selective-area growth of r-SnO2 on a SiO2-masked r-TiO2 (110) substrate. The heteroepitaxy on a window started with a Volmer–Weber mode to grow islands with {100}-, {1-10}-, and {011}-faceted sidewalls, whose growth shapes were consistent with the rutile structure’s equilibrium shape. The islands coalesced each other to make a flat (110) top surface on a striped window, and lateral overgrowth started after the complete coverage of the window. Cross-sectional transmission-electron-microscopy observation of the stripe revealed that misfit dislocations propagated perpendicularly to the facet planes by the image force effect and that the dislocation density reduced substantially in the wing regions.
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- 28/03/2023
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- © 2023 The Japan Society of Applied Physics
This is an author-created, un-copyedited version of an article accepted for publication/published in Applied Physics Express. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.35848/1882-0786/acc82b.
- © 2023 The Japan Society of Applied Physics
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