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Andrew D. Koehler
Andrew D. Koehler
Verified email at nrl.navy.mil
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Year
Ultrawide‐bandgap semiconductors: research opportunities and challenges
JY Tsao, S Chowdhury, MA Hollis, D Jena, NM Johnson, KA Jones, ...
Advanced Electronic Materials 4 (1), 1600501, 2018
14592018
Diamond on III-nitride device
FJ Kub, TJ Anderson, VD Wheeler, AD Koehler, KD Hobart
US Patent 10,002,958, 2018
4142018
Editors' Choice—Review—Theory and Characterization of Doping and Defects in β-Ga2O3
MJ Tadjer, JL Lyons, N Nepal, JA Freitas, AD Koehler, GM Foster
ECS Journal of Solid State Science and Technology 8 (7), Q3187-Q3194, 2019
2372019
Vertical GaN junction barrier Schottky rectifiers by selective ion implantation
Y Zhang, Z Liu, MJ Tadjer, M Sun, D Piedra, C Hatem, TJ Anderson, ...
IEEE Electron Device Letters 38 (8), 1097-1100, 2017
1802017
A (001) β-Ga2O3 MOSFET with+ 2.9 V threshold voltage and HfO2 gate dielectric
MJ Tadjer, NA Mahadik, VD Wheeler, ER Glaser, L Ruppalt, AD Koehler, ...
ECS Journal of Solid State Science and Technology 5 (9), P468, 2016
1642016
Substrate-dependent effects on the response of AlGaN/GaN HEMTs to 2-MeV proton irradiation
TJ Anderson, AD Koehler, JD Greenlee, BD Weaver, MA Mastro, JK Hite, ...
IEEE Electron Device Letters 35 (8), 826-828, 2014
992014
GaN-On-Diamond HEMT Technology With TAVG = 176°C at PDC,max = 56 W/mm Measured by Transient Thermoreflectance Imaging
MJ Tadjer, TJ Anderson, MG Ancona, PE Raad, P Komarov, T Bai, ...
IEEE Electron Device Letters 40 (6), 881-884, 2019
972019
III-nitride P-channel field effect transistor with hole carriers in the channel
FJ Kub, TJ Anderson, AD Koehler, KD Hobart
US Patent 9,006,791, 2015
962015
On the radiation tolerance of AlGaN/GaN HEMTs
BD Weaver, TJ Anderson, AD Koehler, JD Greenlee, JK Hite, DI Shahin, ...
ECS Journal of Solid State Science and Technology 5 (7), Q208, 2016
922016
Phase Control of Crystalline Ga2O3 Films by Plasma-Enhanced Atomic Layer Deposition
VD Wheeler, N Nepal, DR Boris, SB Qadri, LO Nyakiti, A Lang, A Koehler, ...
Chemistry of Materials 32 (3), 1140-1152, 2020
832020
Effect of reduced extended defect density in MOCVD grown AlGaN/GaN HEMTs on native GaN substrates
TJ Anderson, MJ Tadjer, JK Hite, JD Greenlee, AD Koehler, KD Hobart, ...
IEEE Electron Device Letters 37 (1), 28-30, 2015
742015
Electrical characterization of ALD HfO2 high-k dielectrics on (2¯ 01) β-Ga2O3
DI Shahin, MJ Tadjer, VD Wheeler, AD Koehler, TJ Anderson, CR Eddy, ...
Applied Physics Letters 112 (4), 2018
722018
Atomic Layer Epitaxy AlN for Enhanced AlGaN/GaN HEMT Passivation
AD Koehler, N Nepal, TJ Anderson, MJ Tadjer, KD Hobart, CR Eddy, ...
Electron Device Letters, IEEE 34 (9), 1115-1117, 2013
702013
Nanocrystalline diamond integration with III-nitride HEMTs
TJ Anderson, KD Hobart, MJ Tadjer, AD Koehler, EA Imhoff, JK Hite, ...
ECS Journal of Solid State Science and Technology 6 (2), Q3036, 2016
592016
Degradation mechanisms of 2 MeV proton irradiated AlGaN/GaN HEMTs
JD Greenlee, P Specht, TJ Anderson, AD Koehler, BD Weaver, ...
Applied physics letters 107 (8), 2015
502015
Vertical GaN junction barrier Schottky diodes
AD Koehler, TJ Anderson, MJ Tadjer, A Nath, BN Feigelson, DI Shahin, ...
ECS Journal of Solid State Science and Technology 6 (1), Q10, 2016
482016
Impact of surface passivation on the dynamic ON-resistance of proton-irradiated AlGaN/GaN HEMTs
AD Koehler, TJ Anderson, MJ Tadjer, BD Weaver, JD Greenlee, ...
IEEE Electron Device Letters 37 (5), 545-548, 2016
452016
Enhancement mode AlGaN/GaN MOS high-electron-mobility transistors with ZrO2 gate dielectric deposited by atomic layer deposition
TJ Anderson, VD Wheeler, DI Shahin, MJ Tadjer, AD Koehler, KD Hobart, ...
Applied Physics Express 9 (7), 071003, 2016
442016
Proton radiation-induced void formation in Ni/Au-gated AlGaN/GaN HEMTs
AD Koehler, P Specht, TJ Anderson, BD Weaver, JD Greenlee, MJ Tadjer, ...
IEEE Electron Device Letters 35 (12), 1194-1196, 2014
432014
Large-signal RF performance of nanocrystalline diamond coated AlGaN/GaN high electron mobility transistors
DJ Meyer, TI Feygelson, TJ Anderson, JA Roussos, MJ Tadjer, ...
IEEE Electron Device Letters 35 (10), 1013-1015, 2014
432014
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