Hisaaki Tanaka, Shun-ichiro Ito, Toru Matsui, T. Takenobu
{"title":"Facile and controllable chemical doping of conducting polymers with an ionic liquid dopant","authors":"Hisaaki Tanaka, Shun-ichiro Ito, Toru Matsui, T. Takenobu","doi":"10.35848/1882-0786/ad2f66","DOIUrl":null,"url":null,"abstract":"\n A facile method for chemical doping of conducting polymers is demonstrated with an ionic liquid containing FeCl4\n - anions as the oxidizing agents. A drop of the ionic liquid on the film of a typical semicrystalline polymer immediately changed the room temperature conductivity to 500 S/cm. The highly conductive state originated from both the high doping level and the high crystallinity of the doped film, as confirmed by optical absorption and X-ray diffraction measurements, respectively. Furthermore, the doping level was continuously controlled by the gate voltage of the ionic-liquid-gated transistor structure through an electrochemical dedoping process.\n \n","PeriodicalId":8093,"journal":{"name":"Applied Physics Express","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Express","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.35848/1882-0786/ad2f66","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
A facile method for chemical doping of conducting polymers is demonstrated with an ionic liquid containing FeCl4
- anions as the oxidizing agents. A drop of the ionic liquid on the film of a typical semicrystalline polymer immediately changed the room temperature conductivity to 500 S/cm. The highly conductive state originated from both the high doping level and the high crystallinity of the doped film, as confirmed by optical absorption and X-ray diffraction measurements, respectively. Furthermore, the doping level was continuously controlled by the gate voltage of the ionic-liquid-gated transistor structure through an electrochemical dedoping process.
期刊介绍:
Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).