Valley current density activation energy and effective longitudinal optical phonon energy in triple well asymmetric resonant tunneling diode

1990 ◽  
Vol 57 (6) ◽  
pp. 575-577 ◽  
Author(s):  
C. R. Bolognesi ◽  
R. S. Mand ◽  
A. R. Boothroyd
2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Phyo Sandar Win ◽  
Hsu Myat Tin Swe ◽  
Hla Myo Tun

The research problem in this study is the longitudinal optical phonon energy on metal/semiconductor interface for high performance semiconductor device. The research solution is to make the software model with finite difference time domain (FDTD) solution for transmission and reflection pulse between metal and semiconductor interface for carrier dynamics effects. The objective of this study is to find the quantum mechanics understanding on interface engineering for fabricating the high performance device for future semiconductor technology development. The analysis was carried out with the help of MATLAB. The quantum mechanical spatial field on metal-semiconductor stripe structure have been analyzed by FDTD techniques. This emission reveals a characteristic polar radiation distribution of electric dipoles and a wavelength independent of the structure size or the direction of emission; consequently, it is attributed to thermally generate electric dipoles resonating with the longitudinal optical phonon energy. Phonon energy occur lattice vibration of material by the polarization of light, if the material has rigid structure reflect back the incident light. So, high reflective metal- semiconductor structure always use as photodectors devices in optical fiber communication. No lattice vibration material structure has no phonon effect, so this structure based devices can get high performance any other structure based devices. The transmission and reflection coefficient of metal-semiconductor GaN/Au layer structure compare with GaN/Ti and GaN/Pt structure. Parallel (P) and transverse (S) polarization of light incident on metal-semiconductor nanolayer structure with IR wavelength. Efficient use of the layer by layer (LbL) method to fabricate nanofilms requires meeting certain conditions and limitations that were revealed in the course of research on model systems.


2017 ◽  
Vol 38 (6) ◽  
pp. 064005 ◽  
Author(s):  
Zhiqiang Li ◽  
Hailin Tang ◽  
Haitao Liu ◽  
Yi Liang ◽  
Qian Li ◽  
...  

VLSI Design ◽  
1998 ◽  
Vol 6 (1-4) ◽  
pp. 83-86 ◽  
Author(s):  
J. P. Sun ◽  
G. I. Haddad

We perform a self-consistent calculation of resonant tunneling diode (RTD) I-V characteristics including optical phonon scattering. The self-consistency is obtained by solving the Schrödinger equation and Poisson’s equation iteratively with the Thomas-Fermi approximation used for the device contact regions. For evaluation of phonon-assisted current density, the optical phonon scattering in the quantum well is modeled using the optical model potential. Electron transverse momentum is also incorporated. The calculated current and electron wavefunction illustrate the optical model and effects of the phonon scattering on the current transport. The I-V characteristics we obtain from the model calculation are in good agreement with experimental results. This work manifests the importance of including self-consistency, optical phonon scattering, and electron transverse momentum in modeling realistic RTD structures.


2015 ◽  
Vol 36 (12) ◽  
pp. 1295-1298 ◽  
Author(s):  
K. J. P. Jacobs ◽  
B. J. Stevens ◽  
O. Wada ◽  
T. Mukai ◽  
D. Ohnishi ◽  
...  

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