Current–Voltage Characteristic and Electric Field Distribution in the Systems with N-TypeI–E Characteristic

1969 ◽  
Vol 33 (1) ◽  
pp. 137-147
Author(s):  
Yu. F. Sokolov
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Voltage Characteristic ◽  
Current Voltage Characteristic ◽  
Current Voltage

ELECTRIC FIELD-ASSISTED RELAXATION OF THE CHARGE DENSITY WAVES IN K0.3MoO3

2007 ◽  
Vol 21 (27) ◽  
pp. 1863-1867 ◽  
Author(s):  
SONG YUE
Keyword(s):  
Electric Field ◽  
Charge Density ◽  
Charge Density Waves ◽  
Voltage Characteristic ◽  
Metastable States ◽  
Threshold Field ◽  
Density Waves ◽  
Current Voltage Characteristic ◽  
Current Voltage ◽  
Ohmic Conductivity

The evolution of the current-voltage characteristic in K 0.3 MoO 3 was observed intuitively with the presence of current cycling. No variation of the ohmic conductivity was distinguished, while the threshold field for the charge density waves depinning exhibited distinct enhancement with the current cycling. These results were attributed to the electric field-assisted metastable states' relaxation of the charge density waves.

Conductivity of impurity graphene nanoribbons and gate electric field

2017 ◽  
Vol 31 (36) ◽  
pp. 1750340
Author(s):  
Natalia Konobeeva ◽  
Mikhail Belonenko
Keyword(s):  
Electric Field ◽  
Graphene Nanoribbons ◽  
Constant Electric Field ◽  
Tight Binding ◽  
Tunneling Current ◽  
Graphene Nanoribbon ◽  
Voltage Characteristic ◽  
Current Voltage Characteristic ◽  
Tight Binding Approximation ◽  
Current Voltage

In this paper, we investigate the influence of a gate electric field on the tunneling current for the contact of impurity graphene nanoribbon with a metal or quantum dots. Based on the Hamiltonian for graphene in the tight-binding approximation, the density of states is calculated, which allows us to obtain a tunneling current. We analyze the effect of the field magnitude on the detecting possibility of an impurity in the graphene nanoribbon. A sufficient change of current–voltage characteristic (CVC) of the contact is observed, with an increase in the constant electric field applied parallel to the nanoribbon plane.

Effect of Void Shape in Polymeric Insulator on the Electric Field Distribution

2017 ◽  
Vol 5 (3) ◽  
pp. 96
Author(s):  
I. Made Yulistya Negara ◽  
Dimas Anton Asfani ◽  
Daniar Fahmi ◽  
Yusrizal Afif
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Void Shape

Tuning the Localized Surface Plasmon Resonance of Al-Al2O3 Nanosphere Towards NIR Region by Gold Coating

2020 ◽  
Vol 12 ◽  
Author(s):  
Jyoti Katyal ◽  
Shivani Gautam
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Dielectric Layer ◽  
Electric Field Distribution ◽  
Active Material ◽  
Visible Region ◽  
Field Enhancement ◽  
Localized Surface Plasmon ◽  
Sers Substrate ◽  
Al Nanoparticles

Background: A relatively narrow LSPR peak and a strong inter band transition ranging around 800 nm makes Al strongly plasmonic active material. Usually, Al nanoparticles are preferred for UV-plasmonic as the SPR of small size Al nanoparticles locates in deep UV-UV region of the optical spectrum. This paper focused on tuning the LSPR of Al nanostructure towards infrared region by coating Au layer. The proposed structure has Au as outer layer which prevent the further oxidation of Al nanostructure. Methods: The Finite Difference Time Domain (FDTD) and Plasmon Hybridization Theory has been used to evaluated the LSPR and field enhancement of single and dimer Al-Al2O3-Au MDM nanostructure. Results: It is observed that the resonance mode show dependence on the thickness of Al2O3 layer and also on the composition of nanostructure. The Au layered MDM nanostructure shows two peak of equal intensities simultaneously in UV and visible region tuned to NIR region. The extinction spectra and electric field distribution profiles of dimer nanoparticles are compared with monomer to reveal the extent of coupling. The dimer configuration shows higher field enhancement ~107 at 1049 nm. By optimizing the thickness of dielectric layer the MDM nanostructure can be used over UV-visible-NIR region. Conclusion: The LSPR peak shows dependence on the thickness of dielectric layer and also on the composition of nanostructure. It has been observed that optimization of size and thickness of dielectric layer can provide two peaks of equal intensities in UV and Visible region which is advantageous for many applications. The electric field distribution profiles of dimer MDM nanostructure enhanced the field by ~107 in visible and NIR region shows its potential towards SERS substrate. The results of this study will provide valuable information for the optimization of LSPR of Al-Al2O3-Au MDM nanostructure to have high field enhancement.

Sign in / Sign up

Export Citation Format

Share Document