Transmissive-to-black fast electrochromic switching from a long conjugated pendant group and a highly dispersed polymer/SWNT

Handle URI:
http://hdl.handle.net/10754/627285
Title:
Transmissive-to-black fast electrochromic switching from a long conjugated pendant group and a highly dispersed polymer/SWNT
Authors:
Zhang, Qiang; Tsai, Chou-Yi; Abidin, Taufik; Jiang, Jyh-Chiang ( 0000-0002-4225-5250 ) ; Shie, Wan-Ru; Li, Lain-Jong ( 0000-0002-4059-7783 ) ; Liaw, Der-Jang ( 0000-0003-2870-2330 )
Abstract:
In this study, a novel conjugated polymer, denoted as ECPblack, is synthesized. ECPblack demonstrated a unique electrochromic behavior with an ultrahigh contrast ratio (over 80%) in most of the visible regions, boasting an ultrahigh integrated contrast ratio of 71.8% between 380 nm and 880 nm. The long conjugated pendant group (pyrene) in ECPblack enhances the absorption in the blue region in its second oxidized state and results in transmissive-to-black electrochromic switching between the neutral state and the oxidized state. The transmissive-to-black electrochromic switching polymer with an ultrahigh contrast ratio could be especially attractive for applications in electronic displays. In addition, when polytriarylamine/nanotube (SWNT/P2) dispersion is doped in ECPblack, the response time of its electrochemical and electrochromic behaviors is further reduced. The electrochromic switching and bleaching time of SWNT/P2/ECPblack decreased by 73% and 80%, respectively. The improvement is caused by the phase separation of the rigid SWNT and the flexible polymer, which generates a rough surface morphology and provides more pathways for faster diffusion of counterions (ClO4-). The polymer/SWNT doping technique provides a simple way to accelerate ion diffusion in anodically coloring materials.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program
Citation:
Zhang Q, Tsai C-Y, Abidin T, Jiang J-C, Shie W-R, et al. (2018) Transmissive-to-black fast electrochromic switching from a long conjugated pendant group and a highly dispersed polymer/SWNT. Polymer Chemistry 9: 619–626. Available: http://dx.doi.org/10.1039/c7py01863k.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Polymer Chemistry
Issue Date:
3-Jan-2018
DOI:
10.1039/c7py01863k
Type:
Article
ISSN:
1759-9954; 1759-9962
Sponsors:
We acknowledge the financial support of the Ministry of Science and Technology, Taiwan. We would like to thank Dr Prof. Yap Seong Shan's (Multimedia University, MMU - Cyberjaya Campus: Selangor, Malaysia) help to proofread the manuscript. We also thank Dr Prof. Bing-Joe Hwang's (National Taiwan University of Science and Technology, NTUST) for the electrochemical impedance spectroscopy measurement in this work.
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2018/PY/C7PY01863K#!divAbstract
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Qiangen
dc.contributor.authorTsai, Chou-Yien
dc.contributor.authorAbidin, Taufiken
dc.contributor.authorJiang, Jyh-Chiangen
dc.contributor.authorShie, Wan-Ruen
dc.contributor.authorLi, Lain-Jongen
dc.contributor.authorLiaw, Der-Jangen
dc.date.accessioned2018-03-11T06:54:15Z-
dc.date.available2018-03-11T06:54:15Z-
dc.date.issued2018-01-03en
dc.identifier.citationZhang Q, Tsai C-Y, Abidin T, Jiang J-C, Shie W-R, et al. (2018) Transmissive-to-black fast electrochromic switching from a long conjugated pendant group and a highly dispersed polymer/SWNT. Polymer Chemistry 9: 619–626. Available: http://dx.doi.org/10.1039/c7py01863k.en
dc.identifier.issn1759-9954en
dc.identifier.issn1759-9962en
dc.identifier.doi10.1039/c7py01863ken
dc.identifier.urihttp://hdl.handle.net/10754/627285-
dc.description.abstractIn this study, a novel conjugated polymer, denoted as ECPblack, is synthesized. ECPblack demonstrated a unique electrochromic behavior with an ultrahigh contrast ratio (over 80%) in most of the visible regions, boasting an ultrahigh integrated contrast ratio of 71.8% between 380 nm and 880 nm. The long conjugated pendant group (pyrene) in ECPblack enhances the absorption in the blue region in its second oxidized state and results in transmissive-to-black electrochromic switching between the neutral state and the oxidized state. The transmissive-to-black electrochromic switching polymer with an ultrahigh contrast ratio could be especially attractive for applications in electronic displays. In addition, when polytriarylamine/nanotube (SWNT/P2) dispersion is doped in ECPblack, the response time of its electrochemical and electrochromic behaviors is further reduced. The electrochromic switching and bleaching time of SWNT/P2/ECPblack decreased by 73% and 80%, respectively. The improvement is caused by the phase separation of the rigid SWNT and the flexible polymer, which generates a rough surface morphology and provides more pathways for faster diffusion of counterions (ClO4-). The polymer/SWNT doping technique provides a simple way to accelerate ion diffusion in anodically coloring materials.en
dc.description.sponsorshipWe acknowledge the financial support of the Ministry of Science and Technology, Taiwan. We would like to thank Dr Prof. Yap Seong Shan's (Multimedia University, MMU - Cyberjaya Campus: Selangor, Malaysia) help to proofread the manuscript. We also thank Dr Prof. Bing-Joe Hwang's (National Taiwan University of Science and Technology, NTUST) for the electrochemical impedance spectroscopy measurement in this work.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2018/PY/C7PY01863K#!divAbstracten
dc.titleTransmissive-to-black fast electrochromic switching from a long conjugated pendant group and a highly dispersed polymer/SWNTen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalPolymer Chemistryen
dc.contributor.institutionDepartment of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, , Taiwanen
kaust.authorLi, Lain-Jongen
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