Uniaxial orientation of P3HT film prepared by soft friction transfer method
Abstract The realization of room-temperature processes is an important factor in the development of flexible electronic devices composed of organic materials. In addition, a simple and cost-effective process is essential to produce stable working devices and to enhance the performance of a smart mat...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Nature Publishing Group
2017-07-01
|
Series: | Scientific Reports |
Online Access: | https://doi.org/10.1038/s41598-017-05396-9 |
id |
doaj-7235b9d3c3cc4bb88fc2d936cc724245 |
---|---|
record_format |
Article |
spelling |
doaj-7235b9d3c3cc4bb88fc2d936cc7242452020-12-08T02:31:50ZengNature Publishing GroupScientific Reports2045-23222017-07-017111010.1038/s41598-017-05396-9Uniaxial orientation of P3HT film prepared by soft friction transfer methodMasayoshi Imanishi0Daisuke Kajiya1Tomoyuki Koganezawa2Ken-ichi Saitow3Department of Chemistry, Graduate School of Science, Hiroshima UniversityNatural Science Center for Basic Research and Development (N-BARD), Hiroshima UniversityJapan Synchrotron Radiation Research Institute (JASRI), SPring-8Department of Chemistry, Graduate School of Science, Hiroshima UniversityAbstract The realization of room-temperature processes is an important factor in the development of flexible electronic devices composed of organic materials. In addition, a simple and cost-effective process is essential to produce stable working devices and to enhance the performance of a smart material for flexible, wearable, or stretchable-skin devices. Here, we present a soft friction transfer method for producing aligned polymer films; a glass substrate was mechanically brushed with a velvet fabric and poly(3-hexylthiophene) (P3HT) solution was then spin-coated on the substrate. A P3HT film with a uniaxial orientation was obtained in air at room temperature. The orientation factor was 17 times higher than that of a film prepared using a conventional friction transfer technique at a high temperature of 120 °C. In addition, an oriented film with a thickness of 40 nm was easily picked up and transferred to another substrate. The mechanism for orientation of the film was investigated using six experimental methods and theoretical calculation, and was thereby attributed to a chemical process, i.e., cellulose molecules attach to the substrate and act as a template for molecular alignment.https://doi.org/10.1038/s41598-017-05396-9 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Masayoshi Imanishi Daisuke Kajiya Tomoyuki Koganezawa Ken-ichi Saitow |
spellingShingle |
Masayoshi Imanishi Daisuke Kajiya Tomoyuki Koganezawa Ken-ichi Saitow Uniaxial orientation of P3HT film prepared by soft friction transfer method Scientific Reports |
author_facet |
Masayoshi Imanishi Daisuke Kajiya Tomoyuki Koganezawa Ken-ichi Saitow |
author_sort |
Masayoshi Imanishi |
title |
Uniaxial orientation of P3HT film prepared by soft friction transfer method |
title_short |
Uniaxial orientation of P3HT film prepared by soft friction transfer method |
title_full |
Uniaxial orientation of P3HT film prepared by soft friction transfer method |
title_fullStr |
Uniaxial orientation of P3HT film prepared by soft friction transfer method |
title_full_unstemmed |
Uniaxial orientation of P3HT film prepared by soft friction transfer method |
title_sort |
uniaxial orientation of p3ht film prepared by soft friction transfer method |
publisher |
Nature Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2017-07-01 |
description |
Abstract The realization of room-temperature processes is an important factor in the development of flexible electronic devices composed of organic materials. In addition, a simple and cost-effective process is essential to produce stable working devices and to enhance the performance of a smart material for flexible, wearable, or stretchable-skin devices. Here, we present a soft friction transfer method for producing aligned polymer films; a glass substrate was mechanically brushed with a velvet fabric and poly(3-hexylthiophene) (P3HT) solution was then spin-coated on the substrate. A P3HT film with a uniaxial orientation was obtained in air at room temperature. The orientation factor was 17 times higher than that of a film prepared using a conventional friction transfer technique at a high temperature of 120 °C. In addition, an oriented film with a thickness of 40 nm was easily picked up and transferred to another substrate. The mechanism for orientation of the film was investigated using six experimental methods and theoretical calculation, and was thereby attributed to a chemical process, i.e., cellulose molecules attach to the substrate and act as a template for molecular alignment. |
url |
https://doi.org/10.1038/s41598-017-05396-9 |
work_keys_str_mv |
AT masayoshiimanishi uniaxialorientationofp3htfilmpreparedbysoftfrictiontransfermethod AT daisukekajiya uniaxialorientationofp3htfilmpreparedbysoftfrictiontransfermethod AT tomoyukikoganezawa uniaxialorientationofp3htfilmpreparedbysoftfrictiontransfermethod AT kenichisaitow uniaxialorientationofp3htfilmpreparedbysoftfrictiontransfermethod |
_version_ |
1724393605164957696 |