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Title: Theory of electron transport and emission from a semiconductor nanotip

Abstract

An sufficient mass based model accounting for the conduction band quantization in a high aspect ratio semiconductor nanotip is developed to describe injected electron transport and subsequent electron emission from the nanotip. A transfer matrix formalism is used to treat electron scattering induced by the variation in the tip diameter and in the electron emission. Numerical assessment of the scattering and emission probabilities is performed for the diamond parametrized nanotip model. Our scattering and emission models are further combined with a Monte Carlo (MC) approach to simulate electron transport through the nanotip. The MC simulations, additionally accounting for the electron-phonon scattering and externally applied electric field, are performed for a minimal nanotip model and an equivalent width diamond slab. An effect of the level quantization, electron scattering due to the nanotip diameter variation, and electron-phonon scattering on the nanotip emission properties are identified and compared with the case of a bulk slab.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1561079
Report Number(s):
LA-UR-19-20009
Journal ID: ISSN 0021-8979
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 125; Journal Issue: 21; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Accelerator Design, Technology, and Operations; Material Science

Citation Formats

Piryatinski, Andrei, Huang, Chengkun, and Kwan, Thomas J. T. Theory of electron transport and emission from a semiconductor nanotip. United States: N. p., 2019. Web. doi:10.1063/1.5088518.
Piryatinski, Andrei, Huang, Chengkun, & Kwan, Thomas J. T. Theory of electron transport and emission from a semiconductor nanotip. United States. doi:10.1063/1.5088518.
Piryatinski, Andrei, Huang, Chengkun, and Kwan, Thomas J. T. Mon . "Theory of electron transport and emission from a semiconductor nanotip". United States. doi:10.1063/1.5088518.
@article{osti_1561079,
title = {Theory of electron transport and emission from a semiconductor nanotip},
author = {Piryatinski, Andrei and Huang, Chengkun and Kwan, Thomas J. T.},
abstractNote = {An sufficient mass based model accounting for the conduction band quantization in a high aspect ratio semiconductor nanotip is developed to describe injected electron transport and subsequent electron emission from the nanotip. A transfer matrix formalism is used to treat electron scattering induced by the variation in the tip diameter and in the electron emission. Numerical assessment of the scattering and emission probabilities is performed for the diamond parametrized nanotip model. Our scattering and emission models are further combined with a Monte Carlo (MC) approach to simulate electron transport through the nanotip. The MC simulations, additionally accounting for the electron-phonon scattering and externally applied electric field, are performed for a minimal nanotip model and an equivalent width diamond slab. An effect of the level quantization, electron scattering due to the nanotip diameter variation, and electron-phonon scattering on the nanotip emission properties are identified and compared with the case of a bulk slab.},
doi = {10.1063/1.5088518},
journal = {Journal of Applied Physics},
number = 21,
volume = 125,
place = {United States},
year = {2019},
month = {6}
}

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