{"title":"Highly Transparent and Flexible Multi‐Walled Carbon Nanotubes‐Polyimide Films with Enhanced Electrical Performance as Promising Electrodes","authors":"Yoonju Oh, Seunghyun Song, Man Li, Joonho Bae","doi":"10.1002/mren.202400001","DOIUrl":null,"url":null,"abstract":"Transparent and light films with high electrical conductivity are preferred for flexible electronic applications. In this work, a film exhibiting high transparency, electrical conductivity, and flexibility is produced using a polyimide (PI) substrate and multi‐walled carbon nanotubes (MWCNTs) through spray coating. Cost‐effective MWCNTs are used instead of other electrically conductive materials, including silver nanowire (AgNW) ink, SWCNTs, and other carbon materials. The average sheet resistance of the prepared MWCNT‐PI film is 520.2 Ω/□ (infinite for the bare PI film), which is lower than the sheet resistances of the SWCNT‐PI film reported by another group. This could be attributed to the increase in electrical conductivity of the highly transparent PI film due to the use of MWCNTs. The transparency of the MWCNT‐PI film is 71.834% at 550 nm. When MWCNTs and PI are combined, MWCNTs protrude from the surface of the PI film, creating networks and increasing electrical conductivity. Atomic force microscopy analysis revealed that MWCNT networks formed on the surface of the MWCNT‐PI film. This study suggests the possibility that MWCNTs can also be used as carbon materials for flexible and highly transparent films. Ω/□This article is protected by copyright. All rights reserved","PeriodicalId":18052,"journal":{"name":"Macromolecular Reaction Engineering","volume":null,"pages":null},"PeriodicalIF":1.8000,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Macromolecular Reaction Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1002/mren.202400001","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Transparent and light films with high electrical conductivity are preferred for flexible electronic applications. In this work, a film exhibiting high transparency, electrical conductivity, and flexibility is produced using a polyimide (PI) substrate and multi‐walled carbon nanotubes (MWCNTs) through spray coating. Cost‐effective MWCNTs are used instead of other electrically conductive materials, including silver nanowire (AgNW) ink, SWCNTs, and other carbon materials. The average sheet resistance of the prepared MWCNT‐PI film is 520.2 Ω/□ (infinite for the bare PI film), which is lower than the sheet resistances of the SWCNT‐PI film reported by another group. This could be attributed to the increase in electrical conductivity of the highly transparent PI film due to the use of MWCNTs. The transparency of the MWCNT‐PI film is 71.834% at 550 nm. When MWCNTs and PI are combined, MWCNTs protrude from the surface of the PI film, creating networks and increasing electrical conductivity. Atomic force microscopy analysis revealed that MWCNT networks formed on the surface of the MWCNT‐PI film. This study suggests the possibility that MWCNTs can also be used as carbon materials for flexible and highly transparent films. Ω/□This article is protected by copyright. All rights reserved
期刊介绍:
Macromolecular Reaction Engineering is the established high-quality journal dedicated exclusively to academic and industrial research in the field of polymer reaction engineering.