Thin film field-effect transistor with ZnO:Li ferroelectric channel

An n-type channel transparent thin film field-effect transistor (FET) using a top-gate configuration on a sapphire substrate is presented. ZnO:Li film was used as a channel, and MgF2 film as a gate insulator. Measurements showed that ZnO:Li films are ferroelectrics with spontaneous polarization [For...

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Main Authors: Armen Poghosyan, Ruben Hovsepyan, Hrachya Mnatsakanyan
Format: Article
Language:English
Published: World Scientific Publishing 2025-02-01
Series:Journal of Advanced Dielectrics
Subjects:
Online Access:https://www.worldscientific.com/doi/10.1142/S2010135X24500097
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author Armen Poghosyan
Ruben Hovsepyan
Hrachya Mnatsakanyan
author_facet Armen Poghosyan
Ruben Hovsepyan
Hrachya Mnatsakanyan
author_sort Armen Poghosyan
collection DOAJ
description An n-type channel transparent thin film field-effect transistor (FET) using a top-gate configuration on a sapphire substrate is presented. ZnO:Li film was used as a channel, and MgF2 film as a gate insulator. Measurements showed that ZnO:Li films are ferroelectrics with spontaneous polarization [Formula: see text]–5[Formula: see text][Formula: see text]C/cm2 and coercive field [Formula: see text]–10[Formula: see text]kV/cm. The dependences of drain–source current on drain–source voltage at various gate–source voltages in two antiparallel [Formula: see text] states were measured and the values of field-effect mobility and threshold voltage were determined for two [Formula: see text] states are as follows: (a) [Formula: see text][Formula: see text]cm2/Vs, [Formula: see text][Formula: see text]V; (b) [Formula: see text][Formula: see text]cm2/Vs, [Formula: see text][Formula: see text]V. Thus, [Formula: see text] switching leads to a change in FET channel parameters. Results can be used to create a bistable or, more precisely, digital FET.
format Article
id doaj-art-cb530918bc7a427f862619a109e40553
institution Kabale University
issn 2010-135X
2010-1368
language English
publishDate 2025-02-01
publisher World Scientific Publishing
record_format Article
series Journal of Advanced Dielectrics
spelling doaj-art-cb530918bc7a427f862619a109e405532025-01-06T00:55:11ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682025-02-01150110.1142/S2010135X24500097Thin film field-effect transistor with ZnO:Li ferroelectric channelArmen Poghosyan0Ruben Hovsepyan1Hrachya Mnatsakanyan2Institute for Physical Research, Ashtarak 0203, ArmeniaInstitute for Physical Research, Ashtarak 0203, ArmeniaInstitute for Physical Research, Ashtarak 0203, ArmeniaAn n-type channel transparent thin film field-effect transistor (FET) using a top-gate configuration on a sapphire substrate is presented. ZnO:Li film was used as a channel, and MgF2 film as a gate insulator. Measurements showed that ZnO:Li films are ferroelectrics with spontaneous polarization [Formula: see text]–5[Formula: see text][Formula: see text]C/cm2 and coercive field [Formula: see text]–10[Formula: see text]kV/cm. The dependences of drain–source current on drain–source voltage at various gate–source voltages in two antiparallel [Formula: see text] states were measured and the values of field-effect mobility and threshold voltage were determined for two [Formula: see text] states are as follows: (a) [Formula: see text][Formula: see text]cm2/Vs, [Formula: see text][Formula: see text]V; (b) [Formula: see text][Formula: see text]cm2/Vs, [Formula: see text][Formula: see text]V. Thus, [Formula: see text] switching leads to a change in FET channel parameters. Results can be used to create a bistable or, more precisely, digital FET.https://www.worldscientific.com/doi/10.1142/S2010135X24500097Transparent field-effect transistorZnO thin filmsferroelectric semiconductor channeltransparent electronics
spellingShingle Armen Poghosyan
Ruben Hovsepyan
Hrachya Mnatsakanyan
Thin film field-effect transistor with ZnO:Li ferroelectric channel
Journal of Advanced Dielectrics
Transparent field-effect transistor
ZnO thin films
ferroelectric semiconductor channel
transparent electronics
title Thin film field-effect transistor with ZnO:Li ferroelectric channel
title_full Thin film field-effect transistor with ZnO:Li ferroelectric channel
title_fullStr Thin film field-effect transistor with ZnO:Li ferroelectric channel
title_full_unstemmed Thin film field-effect transistor with ZnO:Li ferroelectric channel
title_short Thin film field-effect transistor with ZnO:Li ferroelectric channel
title_sort thin film field effect transistor with zno li ferroelectric channel
topic Transparent field-effect transistor
ZnO thin films
ferroelectric semiconductor channel
transparent electronics
url https://www.worldscientific.com/doi/10.1142/S2010135X24500097
work_keys_str_mv AT armenpoghosyan thinfilmfieldeffecttransistorwithznoliferroelectricchannel
AT rubenhovsepyan thinfilmfieldeffecttransistorwithznoliferroelectricchannel
AT hrachyamnatsakanyan thinfilmfieldeffecttransistorwithznoliferroelectricchannel