Flexible Electrochromic Devices Based on Optoelectronically Active Polynorbornene Layer and Ultratransparent Graphene Electrodes

被引：46

作者：

Lian, Wei-Ren ^{[1
]}

Huang, Ying-Chi ^{[1
]}

Liao, Yi-An ^{[2
]}

Wang, Kun-Li ^{[3
]}

Li, Lain-Jong ^{[4
]}

Su, Ching-Yuan ^{[4
]}

Liaw, Der-Jang ^{[1
]}

Lee, Kueir-Rarn ^{[5
]}

Lai, Juin-Yih ^{[5
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 10607, Taiwan

[2] Natl Yang Ming Univ, Sch Med, Fac Med, Taipei 112, Taiwan

[3] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei 10608, Taiwan

[4] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan

[5] ChuYuan Univ, Dept Chem Engn, R&D Ctr Membrane Technol, Chungli 32023, Taiwan

来源：

MACROMOLECULES | 2011年 / 44卷 / 24期

关键词：

OPENING METATHESIS POLYMERIZATION; ALTERNATING CONJUGATED POLYMER; TRANSPARENT; FILMS; PHASE; OXIDE;

D O I：

10.1021/ma201689e

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Novel electrochromic polynorbornenes poly(NBPYTPAM) and poly(HNBPYTPAM), containing electroactive chromophores, were prepared via ring-opening metathesis polymerization (ROMP) from a new norbornene derivative (NBPYTPAM) using Grubbs' catalyst and followed by hydrogen reduction. The glass transition temperatures (T-g) of poly(NBPYTPAM) and hydrogenated poly(HNBPYTPAM) were 190 and 175 degrees C, respectively. The cyclic voltammogram of the poly(HNBPYTPAM) film cast onto flexible graphene-coated polyethylene terephthalene (PET) substrates exhibited two reversible oxidation redox couples at 1.0 and 1.9 V. Flexible electrochromic devices were fabricated from the electroactive polymers and graphene-coated PET substrates. The electrochromic characteristics of poly(HNBPYTPAM) showed excellent stability and reversibility, with multistaged color changes from its yellow neutral form to green and then to dark-blue.

引用

页码：9550 / 9555

页数：6

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