Version 1
: Received: 22 September 2024 / Approved: 22 September 2024 / Online: 24 September 2024 (03:51:12 CEST)
How to cite:
Shur, M.; Simin, G.; Hussain, K.; Mamun, A.; Chandrashekar, M.; Khan, A. Quantum Channel Extreme Bandgap AlGaN HEMT. Preprints2024, 2024091693. https://doi.org/10.20944/preprints202409.1693.v1
Shur, M.; Simin, G.; Hussain, K.; Mamun, A.; Chandrashekar, M.; Khan, A. Quantum Channel Extreme Bandgap AlGaN HEMT. Preprints 2024, 2024091693. https://doi.org/10.20944/preprints202409.1693.v1
Shur, M.; Simin, G.; Hussain, K.; Mamun, A.; Chandrashekar, M.; Khan, A. Quantum Channel Extreme Bandgap AlGaN HEMT. Preprints2024, 2024091693. https://doi.org/10.20944/preprints202409.1693.v1
APA Style
Shur, M., Simin, G., Hussain, K., Mamun, A., Chandrashekar, M., & Khan, A. (2024). Quantum Channel Extreme Bandgap AlGaN HEMT. Preprints. https://doi.org/10.20944/preprints202409.1693.v1
Chicago/Turabian Style
Shur, M., MVS Chandrashekar and Asif Khan. 2024 "Quantum Channel Extreme Bandgap AlGaN HEMT" Preprints. https://doi.org/10.20944/preprints202409.1693.v1
Abstract
— An extreme bandgap Al0.64Ga0.36N quantum channel HEMT with Al0.87Ga0.13N top and back barriers grown by MOCVD over bulk AlN substrate demonstrated a critical breakdown field of 11.37 MV/cm, higher than 9.8 MV/cm expected for the channel Al0.64Ga0.36N material. We show that the fraction of this increase is due to the quantization of the 2D electron gas. The polarization field maintains electron quantization in the quantum channel even at low sheet densities in contrast to conventional HEMT designs. An additional increase in the breakdown field is due to quantum-enabled real space transfer of energetic electrons into high-Al barrier layers in high electric fields. These results show the advantages of quantum channel design for achieving record high breakdown voltages and enabling superior power HEMT devices.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
