Covalently Bonded Polyaniline-TiO2 Hybrids: A Facile Approach to Highly Stable Anodic Electrochromic Materials with Low Oxidation Potentials

被引：119

作者：

Xiong, Shanxin ^{[1
]}

Phua, Si Lei ^{[2
]}

Dunn, Bruce S. ^{[3
]}

Ma, Jan ^{[1
,2
]}

Lu, Xuehong ^{[1
,2
]}

机构：

[1] Nanyang Technol Univ, Temasek Labs, Singapore 637553, Singapore

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[3] Univ Calif Los Angeles, Dept Mat Sci & Engn, Calif NanoSci Inst, Los Angeles, CA 90095 USA

来源：

CHEMISTRY OF MATERIALS | 2010年 / 22卷 / 01期

关键词：

CONJUGATED POLYMER; THIN-FILMS; CONTRAST;

D O I：

10.1021/cm903058c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this article, we report the synthesis, structures, morphologies, and electrochromic properties of covalently bonded polyaniline (PANI)-TiO2 hybrids. The hybrids were synthesized via a sol-gel process, followed by oxidative polymerization, using it bifunctional compound to bridge the two phases. In comparison with PANI, the hybrids show significant enhancement in optical contrast and coloration efficiency. Furthermore, when covalently bonded to PANI, the TiO2 nanodomains can act as electron acceptors, reducing the oxidation potential and band gap of PANI, and improving the long-term electrochromic stability.

引用

页码：255 / 260

页数：6

共 27 条

[1] Revisiting the origin of open circuit voltage in nanocrystalline-TiO2/polymer heterojunction solar cells [J].

Al-Dmour, H. ;

Taylor, D. M. .

APPLIED PHYSICS LETTERS, 2009, 94 (22)

[2]

ALGI F, 2009, J ELECTROANAL CHEM, V615, P75

[3] AN ELECTROCHROMIC WINDOW BASED ON A MODIFIED POLYPYRROLE NICKEL-OXIDE COMBINATION [J].

AVINO, C ;

PANERO, S ;

SCROSATI, B .

JOURNAL OF MATERIALS CHEMISTRY, 1993, 3 (12) :1259-1261

[4] Electrochromic and photoconductive polymer nanoparticles [J].

Baek, Jehoon ;

Kim, Yuna ;

Oh, Hyunjin ;

Kim, Eunkyoung .

CURRENT APPLIED PHYSICS, 2009, 9 :S110-S113

[5] Charge transfer reductive doping of nanostructured TiO2 thin film's as a way to improve their photoelectrocatalytic performance [J].

Berger, Thomas ;

Lana-Villarreal, Teresa ;

Monllor-Satoca, Damian ;

Gomez, Roberto .

ELECTROCHEMISTRY COMMUNICATIONS, 2006, 8 (11) :1713-1718

[6] Hybrid polymer-metal oxide thin films for photovoltaic applications [J].

Boucle, Johann ;

Ravirajan, Punniamoorthy ;

Nelson, Jenny .

JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (30) :3141-3153

[7] Donor acceptor type neutral state green polymer bearing pyrrole as the donor unit [J].

Celebi, Selin ;

Balan, Abidin ;

Epik, Bugra ;

Baran, Derya ;

Toppare, Levent .

ORGANIC ELECTRONICS, 2009, 10 (04) :631-636

[8] Nanostructured tungsten oxide-poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) hybrid films:: Synthesis, electrochromic response, and durability characteristics [J].

Deepa, M. ;

Srivastava, A. K. ;

Sood, K. N. ;

Murugan, A. V. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (11) :D703-D710

[9] Electrochemical formation of Ir oxide/polyaniline composite films [J].

Elzanowska, H. ;

Miasek, E. ;

Birsss, V. I. .

ELECTROCHIMICA ACTA, 2008, 53 (06) :2706-2715

[10] Photovoltaic characterization of hybrid solar cells using surface modified TiO2 nanoparticles and poly(3-hexyl)thiophene [J].

Gunes, Serap ;

Marjanovic, Nenad ;

Nedeljkovic, Jovan M. ;

Sariciftci, Niyazi Serdar .

NANOTECHNOLOGY, 2008, 19 (42)

← 1 2 3 →