Improvements of surface morphology and electrical transport properties of single-crystalline In2O3(111) thin films by postgrowth annealing

We have grown single-crystalline In2O3 films on yttria-stabilized zirconia (001) and (111) substrates by reactive electron beam evaporation, and investigated the effects of ex situ postgrowth annealing in oxygen atmosphere on the surface morphology and electrical transport properties. For the (111)-...

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Published in:Japanese Journal of Applied Physics 2019-03, Vol.58 (3), p.030909
Main Authors: Fujita, Yuichi, Matsuzaki, Yasufumi, Kon, Shintaro, Yasukawa, Yukiko, Koizumi, Hiroki, Yanagihara, Hideto, Saito, Hidekazu
Format: Article
Language:English
Subjects:
Annealing
Carrier density
Crystal structure
Crystallinity
Electron beams
Electron mobility
Flat surfaces
Hall effect
Indium oxides
Morphology
Single crystals
Substrates
Thin films
Transport properties
Yttria-stabilized zirconia
Yttrium oxide
Zirconium dioxide
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container_issue 3
container_start_page 030909
container_title Japanese Journal of Applied Physics
container_volume 58
creator Fujita, Yuichi
Matsuzaki, Yasufumi
Kon, Shintaro
Yasukawa, Yukiko
Koizumi, Hiroki
Yanagihara, Hideto
Saito, Hidekazu
description We have grown single-crystalline In2O3 films on yttria-stabilized zirconia (001) and (111) substrates by reactive electron beam evaporation, and investigated the effects of ex situ postgrowth annealing in oxygen atmosphere on the surface morphology and electrical transport properties. For the (111)-oriented film, we observed a flat surface in atomic scale as well as high Hall mobility up to 130 cm2 V−1 s−1 with carrier density of 2.3 × 1019 cm−3 at room temperature. The results indicate that the postgrowth annealing is effective in fabricating high-quality In2O3 film.
doi_str_mv 10.7567/1347-4065/aafdec
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source IOPscience journals; Institute of Physics:Jisc Collections:IOP Publishing Read and Publish 2024-2025 (Reading List)
subjects Annealing
Carrier density
Crystal structure
Crystallinity
Electron beams
Electron mobility
Flat surfaces
Hall effect
Indium oxides
Morphology
Single crystals
Substrates
Thin films
Transport properties
Yttria-stabilized zirconia
Yttrium oxide
Zirconium dioxide
title Improvements of surface morphology and electrical transport properties of single-crystalline In2O3(111) thin films by postgrowth annealing
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