70 citations · 644 across the 34 of their papers we have counts for
9 papers · 1 filter
Roadmap on UV-C photodetectors: materials, applications and industry perspectives
Fabien Massabuau, Drew Riley, Paul Meredith +44
UV-C photodetectors are poised to play an increasingly important role in future photonic technologies, driven by the rapid emergence of UV-C light sources and new wide bandgap semi…
AlGaN/AlN Stranski-Krastanov quantum dots for highly efficient electron beam pumped emitters: The role of miniaturization and composition to attain far UV-C emission
Jesus Cañas, Anjali Harikumar, Stephen T. Purcell +6
Conventional ultraviolet (UV) lamps for disinfection emit radiation in the 255-270 nm range, which poses a high risk of causing cancer and cataracts. To address these concerns, sol…
Assessment of active dopants and p-n junction abruptness using in-situ biased 4D-STEM
Bruno C. da Silva, Zahra S. Momtaz, Eva Monroy +4
A key issue in the development of high-performance semiconductor devices is the ability to properly measure active dopants at the nanometer scale. 4D scanning transmission electron…
Decorrelation of internal quantum efficiency and lasing threshold in AlGaN-based separate confinement heterostructures for UV emission
Sergi Cuesta, Lou Denaix, Le Si Dang +1
In this paper, we study the internal quantum efficiency and lasing threshold of AlGaN/GaN separate confinement heterostructures designed for ultraviolet laser emission. We discuss…
Correlated and in-situ electrical transmission electron microscopy studies and related membrane fabrication
Maria Spies, Zahra Sadre-Momtaz, Jonas Lähnemann +5
Understanding the interplay between the structure, composition and opto-electronic properties of semiconductor nano-objects requires combining transmission electron microscopy (TEM…
Assessment of AlGaN/AlN superlattices on GaN nanowires as active region of electron-pumped ultraviolet sources
I. Dimkou, A. Harikumar, F. Donatini +9
In this paper, we describe the design and characterization of 400-nm-long (88 periods) AlxGa1-xN/AlN (0 < x < 0.1) quantum dot superlattices deposited on self-assembled GaN nanowir…