386 citations · 1.7k across the 26 of their papers we have counts for
26 papers
Edge emission from 265~nm UV-C LEDs grown by MBE on bulk AlN
Shivali Agrawal, Hsin-Wei S. Huang, Debaditya Bhattacharya +6
UV-C LEDs pseudomorphically grown by MBE on bulk AlN substrates emitting at 265 nm are demonstrated. High current density up to 800 A/cm, 5 orders of on/off ratio, and low diff…
Improved operating voltage in InGaN-capped AlGaN-based DUV LEDs on bulk AlN substrates
H-W S. Huang, S. Agrawal, D. Bhattacharya +2
Better wall plug efficiency of deep-ultraviolet light emitting diodes (DUV-LEDs) requires simultaneous low resistivity p-type and n-type contacts, which is a challenging problem. I…
Ultrawide bandgap semiconductor heterojunction p-n diodes with distributed polarization doped p-type AlGaN layers on bulk AlN substrates
Shivali Agrawal, Len van Deurzen, Jimy Encomendero +7
Ultrawide bandgap heterojunction p-n diodes with polarization-induced AlGaN p-type layers are demonstrated using plasma-assisted molecular beam epitaxy on bulk AlN substrates. Curr…
Accumulation and removal of Si impurities on arising from ambient air exposure
J. P. McCandless, C. A. Gorsak, V. Protasenko +5
Here we report that the source of Si impurities commonly observed on (010) is from exposure of the surface to air. Moreover, we find that a 15 minute HF (49%) treatment…
Defeating Broken Symmetry with Doping: Symmetric Resonant Tunneling in Noncentrosymetric Heterostructures
Jimy Encomendero, Vladimir Protasenko, Debdeep Jena +1
Resonant tunneling transport in polar heterostructures is intimately connected to the polarization fields emerging from the geometric Berry-phase. In these structures, quantum conf…
Fighting Broken Symmetry with Doping: Toward Polar Resonant Tunneling Diodes with Symmetric Characteristics
Jimy Encomendero, Vladimir Protasenko, Farhan Rana +2
The recent demonstration of resonant tunneling transport in nitride semiconductors has led to an invigorated effort to harness this quantum transport regime for practical applicati…