Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Mehrdad Shaygan"'
Publikováno v:
Advances in Condensed Matter Physics, Vol 2015 (2015)
While attributes such as small dimensions, low power consumption, fast sensor response, and a wide range of detection give one-dimensional nanostructures excellent potential to revolutionize sensor and detector industries, challenges to achieving uni
Externí odkaz:
https://doaj.org/article/7d6c4b9920c244a2a7e4b32ef59c3a4c
Autor:
Enrique G. Marin, Mehrdad Shaygan, Gianluca Fiori, Mohamed Saeed Elsayed, Zhenxing Wang, Daniel Neumaier, Burkay Uzlu, Giuseppe Iannaccone, Martin Otto, Mário Ribeiro, Renato Negra
Publikováno v:
ACS Applied Electronic Materials
In this work, a novel one-dimensional geometry for metal-insulator-graphene (1D-MIG) diode with low capacitance is demonstrated. The junction of the 1D-MIG diode is formed at the 1D edge of Al2O3-encapsulated graphene with TiO2 that acts as barrier m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ce0479c66688e5580994f5207bfe6e7
https://doi.org/10.1021/acsaelm.9b00122
https://doi.org/10.1021/acsaelm.9b00122
Publikováno v:
IEEE Electron Device Letters. 39:1104-1107
In this letter, we present for the first time a mixer circuit based on Metal–Insulator–Graphene (MIG) diodes fabricated with large-scale monolayer graphene grown by chemical vapor deposition. A small-signal model extracted from the diode physical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3d794b0f3543dfa3e152022e0fa4b8a
https://doi.org/10.1109/led.2018.2838451
https://doi.org/10.1109/led.2018.2838451
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 66:2018-2024
In this paper, we report the design, fabrication, and demonstration of a compact, V-band, zero-bias, and linear-in-dB power detector based on our in-house metal–insulator–graphene diode fabricated on a glass substrate. The presented circuit is op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dcb18b124a64578bdcd837235c62de0
https://doi.org/10.1109/tmtt.2018.2792439
https://doi.org/10.1109/tmtt.2018.2792439
Publikováno v:
2019 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP).
This paper presents the recent development of graphene-based frequency-conversion mixers for high-frequency applications. The presented circuits are realised employing metal-insulator-graphene (MIG) diodes that are integrated alongside with a monolit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddac4dce1c6bac1ed04c24173896ea5e
https://doi.org/10.1109/imws-amp.2019.8880143
https://doi.org/10.1109/imws-amp.2019.8880143
Publikováno v:
2019 IEEE MTT-S International Microwave Symposium (IMS).
In this paper, we demonstrate the design, fabrication, and characterisation of the first frequency doubler circuit employing graphene diodes. Exploiting the nonlinearity reported for state-of-the-art graphene diodes, a fully integrated, balanced micr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10c21f49c6b333b6fb6d53deba89625d
https://doi.org/10.1109/mwsym.2019.8700987
https://doi.org/10.1109/mwsym.2019.8700987
Autor:
Michael, Munther, Mehrdad, Shaygan, Alba, Centeno, Daniel, Neumaier, Amaia, Zurutuza, Kasra, Momeni, Keivan, Davami
Publikováno v:
Nanotechnology. 30(18)
The superior intrinsic mechanical properties of graphene have been widely studied and utilized to enhance the mechanical properties of various composite materials. However, it is still unclear how heterostructures incorporating graphene behave, and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::2a401b5df655423f4200c27358dc459e
https://pubmed.ncbi.nlm.nih.gov/30630140
https://pubmed.ncbi.nlm.nih.gov/30630140
Autor:
Sarah Riazimehr, Satender Kataria, Jose M. Gonzalez-Medina, Stefan Wagner, Mehrdad Shaygan, Stephan Suckow, Francisco G. Ruiz, Olof Engström, Andres Godoy, Max C. Lemme
Publikováno v:
ACS Photonics
Graphene / silicon (G/Si) heterostructures have been studied extensively in the past years for applications such as photodiodes, photodetectors and solar cells, with a growing focus on efficiency and performance. Here, a specific contact pattern sche
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a83acec3ec2ed178b7a614202fdb588f
Publikováno v:
Journal of Materials Chemistry C. 4:2040-2046
The fabrication and characterization of a field effect transistor using a radial core/shell structure based on ZnTe nanowires is reported here. The electronic and photoconductive performance of the devices is successfully controlled by tuning the she
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81d2c42b92280ad91d36ad249f199e50
https://doi.org/10.1039/c5tc03999a
https://doi.org/10.1039/c5tc03999a
Autor:
Mohamed Saeed, Chun-Yu Fan, Ahmed Hamed, Muh-Dey Wei, Renato Negra, Mehrdad Shaygan, Daniel Neumaie, Zhenxing Wang
Publikováno v:
2018 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO).
In this paper, a metal-insulator-graphene (MIG) diode is designed, fabricated, and modelled. The MIG diode is realized on a 50 μm- Kapton substrate based on graphene material grown by chemical vapor deposition (CVD) and TiO 2 as a barrier material.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02c8ba01e6d5e7991a2da164b7a71299
https://doi.org/10.1109/nemo.2018.8503157
https://doi.org/10.1109/nemo.2018.8503157