نتایج جستجو برای: negative differential resistance ndr

تعداد نتایج: 1150770  

2016
T. Roy L. Liu Sergio C. de la Barrera B. Chakrabarti Z. R. Hesabi Randall M. Feenstra G. Gu E. M. Vogel S. de la Barrera C. A. Joiner R. M. Feenstra

Large area chemical vapor deposited graphene and hexagonal boron nitride was used to fabricate graphene – hexagonal boron nitride – graphene symmetric field effect transistors. Gate control of the tunneling characteristics is observed similar to previously reported results for exfoliated graphene – hexagonal boron nitride – graphene devices. Density-of-states features are observed in the tunnel...

آصف پور, محمدتقی, صاحب سرا, پیمان,

In this paper, we used green's function approach in microscopic theory to investigate a resonant tunneling diode (RTD). We introduced the detailed Hamiltonian for each part of the photovoltaic p-i-n system, then by calculating the green's function components in tight-binding approximation, we calculate local density of states and current-voltage characteristic of the p-i-n structure. Our result...

2014
T. Roy L. Liu S. de la Barrera B. Chakrabarti Z. R. Hesabi C. A. Joiner R. M. Feenstra G. Gu E. M. Vogel

Large area chemical vapor deposited graphene and hexagonal boron nitride was used to fabricate graphene – hexagonal boron nitride – graphene symmetric field effect transistors. Gate control of the tunneling characteristics is observed similar to previously reported results for exfoliated graphene – hexagonal boron nitride – graphene devices. Density-of-states features are observed in the tunnel...

2012
Hamilton Varela

This experimental thesis deals with self-organization phenomena in electrochemical systems. Two aspects are considered. On the one hand, the impact of a periodic variation of the applied voltage on a bistable electrochemical system is investigated. On the other hand, the interaction of an oscillatory reaction kinetics with a spatial coupling via the electric field of the electrolyte (migration ...

2015
Rossella Loria Giulia Bon Valentina Perotti Enzo Gallo Ilaria Bersani Paola Baldassari Manuela Porru Carlo Leonetti Selene Di Carlo Paolo Visca Maria Felice Brizzi Andrea Anichini Roberta Mortarini Rita Falcioni

We used whole genome microarray analysis to identify potential candidate genes with differential expression in BRAFV600E vs NRASQ61R melanoma cells. We selected, for comparison, a peculiar model based on melanoma clones, isolated from a single tumor characterized by mutually exclusive expression of BRAFV600E and NRASQ61R in different cells. This effort led us to identify two genes, SEMA6A and M...

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