K
Kevin D. Leedy
Researcher at Air Force Research Laboratory
Publications - 180
Citations - 4270
Kevin D. Leedy is an academic researcher from Air Force Research Laboratory. The author has contributed to research in topics: Thin film & Pulsed laser deposition. The author has an hindex of 31, co-authored 180 publications receiving 3443 citations. Previous affiliations of Kevin D. Leedy include University of Illinois at Urbana–Champaign & Air Force Institute of Technology.
Papers
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Journal ArticleDOI
Homoepitaxial β-Ga2O3 transparent conducting oxide with conductivity σ = 2323 S cm−1
Hyung Min Jeon,Kevin D. Leedy,David C. Look,David C. Look,Celesta S. Chang,David A. Muller,Stefan C. Badescu,Vladimir Vasilyev,Jeff L. Brown,Andrew J. Green,Kelson D. Chabak +10 more
TL;DR: In this article, a Si-doped β-Ga2O3 film was 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%).
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Toward high voltage radio frequency devices in β-Ga2O3
Neil Moser,Kyle J. Liddy,Ahmad E. Islam,Nicholas C. Miller,Kevin D. Leedy,Thaddeus J. Asel,Shin Mou,Andrew J. Green,Kelson D. Chabak +8 more
TL;DR: The path to achieving integrated RF and power conversion circuitry using the β-Ga2O3 material system is described with regard to the materials high Johnson's RF figure of merit.
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Influence of Copper on the Switching Properties of Hafnium Oxide-Based Resistive Memory
Benjamin D. Briggs,S.M. Bishop,Kevin D. Leedy,B. Butcher,Richard L. Moore,Steven W. Novak,Nathaniel C. Cady +6 more
TL;DR: In this article, the HfOx active layers in these devices were deposited by atomic layer deposition at 250 °C with tetrakis(dimethylamido)hafnium(IV) as the metal precursor and an O2 plasma as the reactant.
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Tungsten-doped vanadium dioxide thin film based tunable antenna
Eunsung Shin,Eunsung Shin,KuanChang Pan,Weisong Wang,Guru Subramanyam,Guru Subramanyam,Vladimir Vasilyev,Kevin D. Leedy,Tony Quach +8 more
TL;DR: In this paper, tungsten-doped VO2 thin films were synthesized by pulsed laser deposition (PLD) technique with a metallic vanadium target and W-wires which were simply attached on the surface of the target.
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Tunable short- to mid-infrared perfectly absorbing thin films utilizing conductive zinc oxide on metal
TL;DR: In this article, a simple thin-film perfect absorber structure is shown that can achieve greater than 99.9% absorption and is tunable throughout the short-wave and mid-wave infrared.