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The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor

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Main Authors: Parameshwara, S., Renukappa, N. M., Sundara Rajan, J.
Other Authors: parameshwara_nie@yahoo.co.in
Format: Article
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2019
Subjects:
Rubrene
Organic field effect transistor
Dielectric surface modification
Rapid heat treatment
Crystallinity
Field effect mobility
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/58773
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spelling my.unimap-587732019-03-06T08:44:07Z The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor Parameshwara, S. Renukappa, N. M. Sundara Rajan, J. parameshwara_nie@yahoo.co.in Rubrene Organic field effect transistor Dielectric surface modification Rapid heat treatment Crystallinity Field effect mobility Link to publisher's homepage at http://ijneam.unimap.edu.my In this work, bottom gate top contact structured organic field-effect transistors (OFETs) were fabricated using Rubrene as active material and SiO2 as the dielectric on n-type silicon wafer by thermal evaporation method. The effect of dielectric surface modification and abrupt heat treatment on the crystallinity of Rubrene thin film and its influence on the performance of OFETs were investigated. The surface morphologies and the crystal structure of Rubrene films were characterized using differential scanning calorimetry, X-ray diffraction (XRD) and atomic force microscopy. It is observed that the dielectric surface affects the crystalline structure of Rubrene thin film as well as the electrical performance of the OFETs. Thermal transition of Rubrene from amorphous state to highly crystalline state was observed after abrupt heat treatment. It is observed that highly crystalline Rubrene thin films can be obtained by carefully deploying the rapid heat treatment method followed by surface treatment. The electrical properties of the OFETs such as field effect mobility, threshold voltage and current on/off ratio are evaluated using the V-I characteristics and the results are compared with the published data. Improvements in the performance of OFET are evident due to the improved crystallization and highly ordered structure of Rubrene molecules. 2019-03-06T08:42:47Z 2019-03-06T08:42:47Z 2019-01 Article International Journal of Nanoelectronics and Materials, vol.12(1), 2019, pages 105-122 1985-5761 (Printed) 1997-4434 (Online) http://dspace.unimap.edu.my:80/xmlui/handle/123456789/58773 http://ijneam.unimap.edu.my en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Rubrene
Organic field effect transistor
Dielectric surface modification
Rapid heat treatment
Crystallinity
Field effect mobility
spellingShingle Rubrene
Organic field effect transistor
Dielectric surface modification
Rapid heat treatment
Crystallinity
Field effect mobility
Parameshwara, S.
Renukappa, N. M.
Sundara Rajan, J.
The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor
description Link to publisher's homepage at http://ijneam.unimap.edu.my
author2 parameshwara_nie@yahoo.co.in
author_facet parameshwara_nie@yahoo.co.in
Parameshwara, S.
Renukappa, N. M.
Sundara Rajan, J.
format Article
author Parameshwara, S.
Renukappa, N. M.
Sundara Rajan, J.
author_sort Parameshwara, S.
title The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor
title_short The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor
title_full The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor
title_fullStr The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor
title_full_unstemmed The Effect of Dielectric Surface Modification and Heat-treatment on the Performance of Rubrene based Organic Field-effect Transistor
title_sort effect of dielectric surface modification and heat-treatment on the performance of rubrene based organic field-effect transistor
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2019
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/58773
_version_ 1643805991602487296
score 13.160551

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