Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1

Conductive homoepitaxial Si-doped β-Ga2O3 films were fabricated by pulsed laser deposition with an as-deposited 2323 S cm−1 conductivity (resistivity = 4.3 × 10−4 Ω-cm, carrier concentration = 2.24 × 1020 cm−3, mobility = 64.5 cm2 V−1 s−1, and electrical activation efficiency = 77%). High quality ho...

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Main Authors: Hyung Min Jeon, Kevin D. Leedy, David C. Look, Celesta S. Chang, David A. Muller, Stefan C. Badescu, Vladimir Vasilyev, Jeff L. Brown, Andrew J. Green, Kelson D. Chabak
Format: Article
Language:English
Published: AIP Publishing LLC 2021-10-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/5.0062056
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author Hyung Min Jeon
Kevin D. Leedy
David C. Look
Celesta S. Chang
David A. Muller
Stefan C. Badescu
Vladimir Vasilyev
Jeff L. Brown
Andrew J. Green
Kelson D. Chabak
author_facet Hyung Min Jeon
Kevin D. Leedy
David C. Look
Celesta S. Chang
David A. Muller
Stefan C. Badescu
Vladimir Vasilyev
Jeff L. Brown
Andrew J. Green
Kelson D. Chabak
author_sort Hyung Min Jeon
collection DOAJ
description Conductive homoepitaxial Si-doped β-Ga2O3 films were fabricated by pulsed laser deposition with an as-deposited 2323 S cm−1 conductivity (resistivity = 4.3 × 10−4 Ω-cm, carrier concentration = 2.24 × 1020 cm−3, mobility = 64.5 cm2 V−1 s−1, and electrical activation efficiency = 77%). High quality homoepitaxial films deposited on commercial (010) Fe-compensated β-Ga2O substrates were determined by high-resolution transmission electron microscopy and x-ray diffraction. The β-Ga2O3 films have ∼70% transparency from 3.7 eV (335 nm) to 0.56 eV (2214 nm). The combination of high conductivity and transparency offers promise for numerous ultrawide bandgap electronics and optoelectronic applications.
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spelling doaj.art-fff04251cec24e788445f8f34248763d2022-12-21T21:48:45ZengAIP Publishing LLCAPL Materials2166-532X2021-10-01910101105101105-810.1063/5.0062056Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1Hyung Min Jeon0Kevin D. Leedy1David C. Look2Celesta S. Chang3David A. Muller4Stefan C. Badescu5Vladimir Vasilyev6Jeff L. Brown7Andrew J. Green8Kelson D. Chabak9Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Ohio 45433, USAAir Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Ohio 45433, USAAir Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Ohio 45433, USAResearch Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USASchool of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USAAir Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Ohio 45433, USAAir Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Ohio 45433, USAKBR, Beavercreek, Ohio 45431, USAAir Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Ohio 45433, USAAir Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Ohio 45433, USAConductive homoepitaxial Si-doped β-Ga2O3 films were fabricated by pulsed laser deposition with an as-deposited 2323 S cm−1 conductivity (resistivity = 4.3 × 10−4 Ω-cm, carrier concentration = 2.24 × 1020 cm−3, mobility = 64.5 cm2 V−1 s−1, and electrical activation efficiency = 77%). High quality homoepitaxial films deposited on commercial (010) Fe-compensated β-Ga2O substrates were determined by high-resolution transmission electron microscopy and x-ray diffraction. The β-Ga2O3 films have ∼70% transparency from 3.7 eV (335 nm) to 0.56 eV (2214 nm). The combination of high conductivity and transparency offers promise for numerous ultrawide bandgap electronics and optoelectronic applications.http://dx.doi.org/10.1063/5.0062056
spellingShingle Hyung Min Jeon
Kevin D. Leedy
David C. Look
Celesta S. Chang
David A. Muller
Stefan C. Badescu
Vladimir Vasilyev
Jeff L. Brown
Andrew J. Green
Kelson D. Chabak
Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1
APL Materials
title Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1
title_full Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1
title_fullStr Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1
title_full_unstemmed Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1
title_short Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1
title_sort homoepitaxial β ga2o3 transparent conducting oxide with conductivity σ 2323 s cm 1
url http://dx.doi.org/10.1063/5.0062056
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