Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation

In this paper, current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation has been calculated and compared with the results when there is no electromagnetic radiation. For calculating current -voltage characteristic, it is required to calculate the transmission coef...

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Main Author: N Hatefi Kargan
Format: Article
Language:English
Published: Isfahan University of Technology 2013-09-01
Series:Iranian Journal of Physics Research
Subjects:
Online Access:http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-621&slc_lang=en&sid=1
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author N Hatefi Kargan
author_facet N Hatefi Kargan
author_sort N Hatefi Kargan
collection DOAJ
description In this paper, current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation has been calculated and compared with the results when there is no electromagnetic radiation. For calculating current -voltage characteristic, it is required to calculate the transmission coefficient of electrons from the well and barrier structures of this device. For calculating the transmission coefficient of electrons at the presence of electromagnetic radiation, Finite Difference Time Domain (FDTD) method has been used and when there is no electromagnetic radiation Transfer Matrix Method (TMM) and finite diffirence time domain method have been used. The results show that the presence of electromagnetic radiation causes resonant states other than principal resonant state (without presence of electromagnetic radiation) to appear on the transmition coefficient curve where they are in distances from the principal peak and from each other. Also, the presence of electromagnetic radiation causes peaks other than principal peak to appear on the current-voltage characteristics of the device. Under electromagnetic radiation, the number of peaks on the current-voltage curve is smaller than the number of peaks on the current-voltage transmission coefficient. This is due to the fact that current-voltage curve is the result of integration on the energy of electrons, Thus, the sharper and low height peaks on the transmission coefficient do not appear on the current-voltage characteristic curve.
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spelling doaj.art-a7684841b3fc49e4882d037169210f2e2022-12-22T01:38:49ZengIsfahan University of TechnologyIranian Journal of Physics Research1682-69572013-09-011318591Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiationN Hatefi KarganIn this paper, current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation has been calculated and compared with the results when there is no electromagnetic radiation. For calculating current -voltage characteristic, it is required to calculate the transmission coefficient of electrons from the well and barrier structures of this device. For calculating the transmission coefficient of electrons at the presence of electromagnetic radiation, Finite Difference Time Domain (FDTD) method has been used and when there is no electromagnetic radiation Transfer Matrix Method (TMM) and finite diffirence time domain method have been used. The results show that the presence of electromagnetic radiation causes resonant states other than principal resonant state (without presence of electromagnetic radiation) to appear on the transmition coefficient curve where they are in distances from the principal peak and from each other. Also, the presence of electromagnetic radiation causes peaks other than principal peak to appear on the current-voltage characteristics of the device. Under electromagnetic radiation, the number of peaks on the current-voltage curve is smaller than the number of peaks on the current-voltage transmission coefficient. This is due to the fact that current-voltage curve is the result of integration on the energy of electrons, Thus, the sharper and low height peaks on the transmission coefficient do not appear on the current-voltage characteristic curve.http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-621&slc_lang=en&sid=1tunneling dioderesonant tunnelingtransmission coefficientnegative differential resistance
spellingShingle N Hatefi Kargan
Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation
Iranian Journal of Physics Research
tunneling diode
resonant tunneling
transmission coefficient
negative differential resistance
title Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation
title_full Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation
title_fullStr Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation
title_full_unstemmed Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation
title_short Current-voltage characteristic of a resonant tunneling diode under electromagnetic radiation
title_sort current voltage characteristic of a resonant tunneling diode under electromagnetic radiation
topic tunneling diode
resonant tunneling
transmission coefficient
negative differential resistance
url http://ijpr.iut.ac.ir/browse.php?a_code=A-10-1-621&slc_lang=en&sid=1
work_keys_str_mv AT nhatefikargan currentvoltagecharacteristicofaresonanttunnelingdiodeunderelectromagneticradiation