Experimental and Theoretical Analysis of Resonant Tunneling Through a-Si:H/a-Si1−xCx:H Double-Barrier in p-i-n Structure

1989 ◽  
Vol 149 ◽  
Author(s):  
Yeu-Long Jiang ◽  
Huey-Liang Hwang
Keyword(s):  
Glow Discharge ◽  
Theoretical Analysis ◽  
Quantum Well ◽  
Quantum Transport ◽  
Resonant Tunneling ◽  
Barrier Structure ◽  
Middle Section ◽  
Applied Bias ◽  
Double Barrier ◽  
Double Barrier Structure

ABSTRACTa-Si:H/a-Si1−x Cx:H double-barrier structure imbedded in the i layer were fabricated by glow discharge. By using the built-in field in the i layer and the external applied bias, the effects of photo-excited carriers driven by electric field in the i layer tunneling through the double-barrier quantum well were examined. Distinct current bumps are distinctly observed when the quantum well structure is imbedded in the middle section of the i layer. A simple theoretical analysis was developed to study the quantum transport behavior.

THE WIDTH RATIO OF TWO BARRIERS IN RESONANT TUNNELING

2003 ◽  
Vol 17 (03) ◽  
pp. 105-109 ◽  
Author(s):  
MASATO OHMUKAI
Keyword(s):  
Transmission Coefficient ◽  
Resonant Tunneling ◽  
Width Ratio ◽  
Total Width ◽  
Barrier Width ◽  
Barrier Structure ◽  
Double Barrier ◽  
Two Parameters ◽  
Double Barrier Structure ◽  
Two Barriers

Numerical calculations by a transfer matrix method have been performed to obtain the transmission coefficient of rectangular double barrier structures. The dependence of the well width, barrier width and the barrier height was systematically investigated. When the width ratio of the two barriers was varied on condition that a total width was fixed, the transmission coefficient at a resonance is varied while that at a valley region is not. It is concluded that the resonant tunneling is characterized by two parameters: total width and the width ratio. Our results clarify the transition of transmission spectrum from a single barrier to a double barrier structure.

Influence on Characteristics of RTD Due to Variation of Different Parameters and Material Properties

2017 ◽  
Vol 26 (04) ◽  
pp. 1740022 ◽  
Author(s):  
Banasree Das ◽  
Manas Kumar Parai
Keyword(s):  
Simple Model ◽  
Electronic Transport ◽  
Material Properties ◽  
Resonant Tunneling ◽  
Barrier Structure ◽  
Double Barrier ◽  
Tunneling Diode ◽  
Silvaco Atlas ◽  
Double Barrier Structure ◽  
Peak To Valley Ratio

In this paper, novel features offered by Resonant Tunneling Diode (RTD) are reviewed by simulating it under different conditions. GaAs/AlGaAs based RTD is used as the reference one to obtain the characteristics due to parametric variations. To fulfil this purpose a simple model of resonant electronic transport through a double-barrier structure is developed. I-V characteristics are studied by varying barrier parameters and well width. Different peak and valley currents are measured under these conditions. For the same set of parameters both symmetric and asymmetric cases are considered. Different materials of lower effective mass are also taken into consideration to improve Peak to Valley Ratio (PVR). The Indium (In) based materials are considered to compare the characteristics obtained from the conventional GaAs based RTD structure. All these proposed structures are simulated using Silvaco Atlas software.

Resonant Tunneling Effect in Si/SiO2 Double Barrier Structure

2001 ◽  
Author(s):  
Yasuhiko Ishikawa ◽  
Takuma Ishihara ◽  
Masanori Iwasaki ◽  
Michiharu Tabe
Keyword(s):  
Resonant Tunneling ◽  
Tunneling Effect ◽  
Barrier Structure ◽  
Double Barrier ◽  
Resonant Tunneling Effect ◽  
Double Barrier Structure

InAs/GaSb superlattice resonant tunneling diode photodetector with InAs/AlSb double barrier structure

2019 ◽  
Vol 114 (5) ◽  
pp. 053509 ◽  
Author(s):  
Biying Nie ◽  
Jianliang Huang ◽  
Chengcheng Zhao ◽  
Wenjun Huang ◽  
Yanhua Zhang ◽  
...  
Keyword(s):  
Resonant Tunneling ◽  
Resonant Tunneling Diode ◽  
Barrier Structure ◽  
Double Barrier ◽  
Tunneling Diode ◽  
Double Barrier Structure

Photo-Assisted Resonant Tunneling Through Localized States in AlAs/GaAs Double-Barrier Structure With Undoped Spacer Layers

1997 ◽  
Vol 484 ◽  
Author(s):  
H. Y. Chu ◽  
K. -S. Lee ◽  
H. -H. Park ◽  
E. -H. Lee
Keyword(s):  
Laser Power ◽  
Resonant Tunneling ◽  
Localized States ◽  
Barrier Structure ◽  
Double Barrier ◽  
Localization Effect ◽  
Photocurrent Measurement ◽  
Double Barrier Structure ◽  
Undoped Gaas

AbstractWe report on the evidence of photo-assisted resonant tunneling through localized states in AlAs/GaAs double-barrier structures (DBSs) with undoped GaAs spacers. In the photocurrent measurement, additional peaks were observed at voltages lower than that of resonance and were enhanced with the laser power. This behavior was more pronounced as the thickness of spacer layers in the DBS increased. These results are attributed to the resonant tunneling of electrons through the localized states, they are induced in the neighboring barriers, by the photoexcited carriers in spacers. We discuss the localization effect of photoexcited carriers on the resonant tunneling.

EFFECT OF MULTIPLE SCATTERING IN A QUANTUM WELL

1993 ◽  
Vol 07 (06) ◽  
pp. 379-388 ◽  
Author(s):  
HANYU SHENG ◽  
SOO-JIN CHUA ◽  
JUHA SINKKONEN
Keyword(s):  
Quantum Well ◽  
Free Path ◽  
Multiple Scattering ◽  
Born Approximation ◽  
Mean Free Path ◽  
Barrier Structure ◽  
Scattering Parameter ◽  
Double Barrier ◽  
Coherent Wave ◽  
Double Barrier Structure

This paper gives a potentially useful application to quantum well of the theory of scattering in the Born approximation. The simple formulae for multiple scattering in a quantum well of double barrier structure are derived. The multiple scattering parameter is the complex mean free path. We show that the amplitude of the coherent wave will be exponentially attenuated and the phase of the wave will be delayed because of the scattering.

Sign in / Sign up

Export Citation Format

Share Document