Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Akintunde I. Akinwande"'
Autor:
Robert Hay, Ranajoy Bhattacharya, Winston Chern, Girish Rughoobur, Akintunde I. Akinwande, Jim Browning
Publikováno v:
Applied Sciences, Vol 13, Iss 23, p 12807 (2023)
Vacuum transistors (VTs) are promising candidates in electronics due to their fast response and ability to function in harsh environments. In this study, several oscillator and logic gate circuit simulations using VTs are demonstrated. Silicon-gated
Externí odkaz:
https://doaj.org/article/d29568243fd34db68d5d2144d1d41fd0
Autor:
Pao-Chuan Shih, Girish Rughoobur, Zachary Engel, Habib Ahmad, William Alan Doolittle, Akintunde I. Akinwande, Tomas Palacios
Publikováno v:
IEEE Electron Device Letters. 43:1351-1354
Publikováno v:
IEEE Electron Device Letters. 42:422-425
Field emitters are attracting much attention recently because of their potential for high-frequency and harsh-environment applications. Although silicon is the most studied semiconductor for field emitters, III-Nitrides are also very promising thanks
Autor:
Prashant Patil, Stephen L. Buchwald, Akintunde I. Akinwande, Zhaohong Lu, Neil Gershenfeld, Girish Rughoobur, Klavs F. Jensen, Yiming Mo
Publikováno v:
Science. 368:1352-1357
Cutting it close for radical coupling In principle, electrochemistry is an ideal method for radical coupling: One precursor oxidized at the anode pairs up with a counterpart that has been reduced at the cathode. The trouble is that either or both cou
Autor:
Isaac Wolstenholme, Akintunde I. Akinwande, Adam M. Darr, Ranajoy Bhattacharya, Mason Cannon, Andong Yue, Winston Chern, Jim Browning, Nedeljko Karaulac, Rushmita Bhattacharjee, Liz Gaffney, Girish Rughoobur, Gerardo Herrera, John McClarin, Allen L. Garner
Publikováno v:
2021 IEEE International Conference on Plasma Science (ICOPS).
High power magnetrons and crossed-field amplifiers (CFA) are advantageous in terms of power density and efficiency. However, electron beam stability in the crossed-field gap in terms of magnetic field tilt 1 , current density, and AC modulation of th
Publikováno v:
2021 34th International Vacuum Nanoelectronics Conference (IVNC).
We present a layout-independent fabrication process for silicon field emitter arrays (FEAs) that improves the scalability of emission current with array size. Using this process, we were able to fabricate and measure FEAs with different array sizes r
Autor:
Akintunde I. Akinwande, Jim Browning, Winston Chern, Ranajoy Bhattacharya, Girish Rughoobur, Nedeljko Karaulac, Mason Cannon, Rushmita Bhattacharjee
Publikováno v:
2021 34th International Vacuum Nanoelectronics Conference (IVNC).
Specially designed silicon gated field emitter array (SiGFEA) tips are used as large current electron sources for crossed-field device experiments. Thirty-six discrete field emitter arrays, each made of 100×100 tips, are integrated in to a single di
Publikováno v:
2021 34th International Vacuum Nanoelectronics Conference (IVNC).
We present the emission characteristics from a single Si emitter with integrated nanowire, obtained at different pressures by the influx of gases. This is enabled by a nanopositioning stage and a sharp tungsten anode. We compared emission characteris
Publikováno v:
2021 34th International Vacuum Nanoelectronics Conference (IVNC).
We demonstrate the lifetime and breakdown mechanisms in dense (1012 m−2) self-aligned double-gated Si field emitter arrays. We perform measurements at relatively low currents of 10 nA for over 300 hrs but found that increasing the current to 50 nA
Autor:
Nedeljko Karaulac, Akintunde I. Akinwande, Winston Chern, Girish Rughoobur, Ranajoy Bhattacharya, Mason Canon, Jim Browning
Publikováno v:
2021 34th International Vacuum Nanoelectronics Conference (IVNC).
Ultra violet (UV) light assisted residual gas desorption was performed on silicon gated field emitter array (Si-GFEAs) with 1000×1000 tips. These GFEAs can be used as vacuum nano-transistors. Here, Si-GFEAs with tips are studied experimentally in no