3 papers
cond-mat.mtrl-sci2026
Barrier-channel intermixing and 2-dimensional electron gas degradation in Al-rich Al(Ga)N/AlGaN high electron mobility transistor heterostructures
Pietro Pampili, Vitaly Z. Zubialevich, Badal Mondal +4
In this work, we report on recent results in understanding and addressing the issue of interface smearing in high-aluminium content AlGaN/AlGaN heterostructures. On the one hand, t…
cond-mat.mtrl-sci2025
Interplay of carrier density and mobility in Al-Rich (Al,Ga)N-Channel HEMTs: Impact on high-power device performance potential
Badal Mondal, Pietro Pampili, Jayjit Mukherjee +3
Despite considerable advancements, high electron mobility transistors (HEMTs) based on gallium nitride (GaN) channels remain largely limited to power applications below 650 V. For…
cond-mat.mtrl-sci2025
Theoretical study of the impact of carrier density screening on Urbach tail energies and optical polarization in (Al,Ga)N quantum well systems
Robert Finn, Michael O'Donovan, Thomas Koprucki +1
Aluminium Gallium Nitride ((Al,Ga)N) presents an ideal platform for designing ultra-violet (UV) light emitters across the entire UV spectral range. However, in the deep-UV spectral…