Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Abdollah Eslami Majd"'
Effect of fabrication process on contact resistance and channel in graphene field effect transistors
Autor:
Babak Khosravi Rad, Amir Hossein Mehrfar, Zahra Sadeghi Neisiani, Mahdi Khaje, Abdollah Eslami Majd
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Contact resistance, as one of the main parameters that limits the performance of graphene-based transistors, is highly dependent on the metal-graphene contact fabrication processes. These processes are investigated and the corresponding resi
Externí odkaz:
https://doaj.org/article/872f4b794ece4dfb91c73990cc1db5c5
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract In the present study, by adding graphene to a photoconductive photodetector with a niobium pentoxide (Nb2O5) absorber layer and exploiting the photogating effect, the responsivity of the photodetector is significantly improved. In this photo
Externí odkaz:
https://doaj.org/article/ba87d7b4d9cf46e088385b7dd69377de
Publikováno v:
Journal of Russian Laser Research. 43:162-168
Publikováno v:
Applied Optics. 62:4213
Photoconductive detectors that use intrinsic absorbent materials include a wide range of detectors. In this paper, a photoconductive detector is fabricated using a titanium dioxide (TiO2) thin film. The mechanism of the photodetector is changed to th
Autor:
Masoud Saeed, Abdollah Eslami Majd, Hajar Alirezaee, Seyyed Mohammad Reza Darbani, M. Sharifian
Publikováno v:
IEEE Transactions on Plasma Science. 48:576-580
In this article, a photocurrent model is used to investigate terahertz (THz) generation in two-color laser-induced preformed air microplasma. Comprehensive 2-D numerical particle-in-cell (PIC) simulations are done to understand the most important mec
Publikováno v:
Applied Optics. 62:1160
In this paper, by adding graphene to the platinum silicide (PtSi) photodetector and using the photogating effect, the responsivity is significantly improved in the PtSi photodetector. In this photodetector, the PtSi layer detects the light, and the g
Publikováno v:
Optik. 175:126-137
Many methods based on the histogram equalization have been introduced for the use in contrast enhancement. However, a technique that can produce proper natural enhancement simultaneously in images with brightness ranges of dark, medium, and bright, h
Autor:
Abdollah Eslami Majd, Ali Reza Niknam, Masoud Saeed, M. Sharifian, Seyyed Mohammad Reza Darbani, Hajar Alirezaee
Publikováno v:
The European Physical Journal Plus. 135
Based on the photocurrent model, terahertz (THz) radiation generation in three-color (fundamental ($$\omega $$), second-harmonic ($$2\omega $$), and third-harmonic ($$3\omega $$)) laser-induced air plasma is studied using particle in cell simulation.
Publikováno v:
Ceramics International. 43:8356-8363
This paper is focused on the clarification of the behaviour of various atomic, ionic, and TiOγ (A3Φ – X3Δ, Δν =0) diatomic transition lines as well as the continuum radiations in laser-induced titanium plasma plume by a pair of NdFeB. Dependin
Publikováno v:
Thin Solid Films. 636:464-473
In this work, the results of computational single-shot laser pulse irradiation of gold/chromium metal film using two-temperature model are presented. The optical properties of first Au layer are studied based on critical point model and temperature-d