37 citations · 68 across the 6 of their papers we have counts for
6 papers
Selective-injection GaN Heterojunction Bipolar Transistors with 275 kA/cm Current Density
Zhanbo Xia, Chandan Joishi, Shahadat H. Sohel +4
We design and demonstrate selective injection GaN heterojunction bipolar transistors that utilize a patterned base for selective injection of electrons from the emitter. The design…
Selective injection AlGaN/GaN heterojunction bipolar transistors with patterned regrown base contacts
Chandan Joishi, Sheikh Ifatur Rahman, Zhanbo Xia +2
We demonstrate graded AlGaN/GaN heterojunction bipolar transistors (HBTs) with selective injection of minority carriers across a p-GaN base and patterned regrown base contacts. The…
Gallium Oxide Heterojunction Diodes for Improved High-Temperature Performance
Shahadat H. Sohel, Ramchandra Kotecha, Imran S Khan +4
-GaO based semiconductor devices are expected to have significantly improved high-power and high-temperature performance due to its ultra-wide bandgap of close to 5…
Deep-recessed -GaO delta-doped field effect transistors with in situ epitaxial passivation
Chandan Joishi, Zhanbo Xia, John S. Jamison +4
We introduce a deep-recessed gate architecture in -GaO delta-doped field effect transistors for improvement in DC-RF dispersion and breakdown properties. The device desi…
Lateral Heterojunction BaTiO3/AlGaN Diodes with >8MV/cm Breakdown Field
Towhidur Razzak, Hareesh Chandrasekar, Kamal Hussain +11
In this paper, we report enhanced breakdown characteristics of Pt/BaTiO3/Al0.58Ga0.42N lateral heterojunction diodes compared to Pt/Al0.58Ga0.42N Schottky diodes. BaTiO3, an extrem…
Compositionally graded contact layers for MOCVD grown high Al-content AlGaN transistors
Towhidur Razzak, Seongmo Hwang, Antwon Coleman +7
In this letter, we design and demonstrate an improved MOCVD grown reverse Al-composition graded contact layer to achieve low resistance contact to MOCVD grown ultra-wide bandgap (U…