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Towhidur Razzak
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High Al-content AlGaN transistor with 0.5 A/mm current density and lateral breakdown field exceeding 3.6 MV/cm
S Bajaj, A Allerman, A Armstrong, T Razzak, V Talesara, W Sun, SH Sohel, ...
IEEE Electron Device Letters 39 (2), 256-259, 2017
562017
Linearity Improvement With AlGaN Polarization- Graded Field Effect Transistors With Low Pressure Chemical Vapor Deposition Grown SiNx Passivation
SH Sohel, MW Rahman, A Xie, E Beam, Y Cui, M Kruzich, H Xue, ...
IEEE Electron Device Letters 41 (1), 19-22, 2019
272019
X-band power and linearity performance of compositionally graded AlGaN channel transistors
SH Sohel, A Xie, E Beam, H Xue, JA Roussos, T Razzak, S Bajaj, Y Cao, ...
IEEE Electron Device Letters 39 (12), 1884-1887, 2018
242018
Al0. 75Ga0. 25N/Al0. 6Ga0. 4N heterojunction field effect transistor with fT of 40 GHz
H Xue, CH Lee, K Hussian, T Razzak, M Abdullah, Z Xia, SH Sohel, ...
Applied Physics Express 12 (6), 066502, 2019
232019
Polarization engineering of AlGaN/GaN HEMT with graded InGaN sub-channel for high-linearity X-band applications
SH Sohel, A Xie, E Beam, H Xue, T Razzak, S Bajaj, Y Cao, C Lee, W Lu, ...
IEEE Electron Device Letters 40 (4), 522-525, 2019
222019
BaTiO3/Al0.58Ga0.42N lateral heterojunction diodes with breakdown field exceeding 8 MV/cm
T Razzak, H Chandrasekar, K Hussain, CH Lee, A Mamun, H Xue, Z Xia, ...
Applied Physics Letters 116 (2), 023507, 2020
182020
Design of compositionally graded contact layers for MOCVD grown high Al-content AlGaN transistors
T Razzak, S Hwang, A Coleman, H Xue, SH Sohel, S Bajaj, Y Zhang, ...
Applied Physics Letters 115 (4), 043502, 2019
182019
RF operation in graded AlxGa1−xN (x = 0.65 to 0.82) channel transistors
T Razzak, S Hwang, A Coleman, S Bajaj, H Xue, Y Zhang, ...
Electronics Letters 54 (23), 1351-1353, 2018
182018
Al0.65Ga0.35N/Al0.4Ga0.6N Micro-Channel Heterojunction Field Effect Transistors With Current Density Over 900 mA/mm
H Xue, K Hussain, T Razzak, M Gaevski, SH Sohel, S Mollah, V Talesara, ...
IEEE Electron Device Letters 41 (5), 677-680, 2020
172020
All MOCVD grown Al0. 7Ga0. 3N/Al0. 5Ga0. 5N HFET: An approach to make ohmic contacts to Al-rich AlGaN channel transistors
H Xue, S Hwang, T Razzak, C Lee, GC Ortiz, Z Xia, SH Sohel, J Hwang, ...
Solid-State Electronics 164, 107696, 2020
172020
Demonstration of Wide Bandgap AlGaN/GaN Negative‐Capacitance High‐Electron‐Mobility Transistors (NC‐HEMTs) Using Barium Titanate Ferroelectric Gates
H Chandrasekar, T Razzak, C Wang, Z Reyes, K Majumdar, S Rajan
Advanced Electronic Materials 6 (8), 2000074, 2020
72020
Improved DC-RF dispersion with epitaxial passivation for high linearity graded AlGaN channel field effect transistors
SH Sohel, A Xie, E Beam, H Xue, T Razzak, S Bajaj, S Campbell, D White, ...
Applied Physics Express 13 (3), 036502, 2020
62020
Ultra-Wide Bandgap Alx1-xN Channel Transistors
T Razzak, S Rajan, A Armstrong
Wide Bandgap Semiconductor Electronics And Devices 63, 163, 2019
52019
Ultra-wide band gap materials for high frequency applications
T Razzak, H Xue, Z Xia, S Hwang, A Khan, W Lu, S Rajan
2018 IEEE MTT-S International Microwave Workshop Series on Advanced …, 2018
42018
Integration of high permittivity BaTiO3 with AlGaN/GaN for near-theoretical breakdown field kV-class transistors
MW Rahman, NK Kalarickal, H Lee, T Razzak, S Rajan
Applied Physics Letters 119 (19), 193501, 2021
32021
Hybrid BaTiO3/SiNx/AlGaN/GaN lateral Schottky barrier diodes with low turn-on and high breakdown performance
MW Rahman, H Chandrasekar, T Razzak, H Lee, S Rajan
Applied Physics Letters 119 (1), 013504, 2021
32021
High Current Density SmTiO3/SrTiO3 Field-Effect Transistors
H Chandrasekar, K Ahadi, T Razzak, S Stemmer, S Rajan
ACS Applied Electronic Materials 2 (2), 510-516, 2020
32020
Wide Bandgap Semiconductor Electronics and Devices
U Singisetti, T Razzak, Y Zhang
World Scientific, 2019
32019
Characterization of traps in InAlN by optically and thermally stimulated deep level defect spectroscopies
E Farzana, HM Foronda, CM Jackson, T Razzak, Z Zhang, JS Speck, ...
Journal of Applied Physics 124 (14), 145703, 2018
32018
Design of graded AlGaN channel transistors for improved large-signal linearity
SH Sohel, S Bajaj, T Razzak, DJ Meyer, S Rajan
Proc. Int. Conf. Compound Semiconductor Manuf. Technol., 1-4, 2018
22018
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