Morphological changes in electrochemically deposited poly(3,4-ethylenedioxythiophene) films during overoxidation

被引：30

作者：

Ujvari, M. ^{[1
]}

Gubicza, J. ^{[2
]}

Kondratiev, V. ^{[3
]}

Szekeres, K. J. ^{[1
]}

Lang, G. G. ^{[1
]}

机构：

[1] Eotvos Lorand Univ, Inst Chem, Dept Phys Chem, Lab Electrochem & Electroanal Chem, H-1117 Budapest, Hungary

[2] Eotvos Lorand Univ, Inst Phys, Dept Mat Phys, H-1117 Budapest, Hungary

[3] St Petersburg State Univ, Dept Chem, St Petersburg 198504, Russia

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2015年 / 19卷 / 04期

基金：

匈牙利科学研究基金会; 俄罗斯基础研究基金会;

关键词：

Overoxidation of PEDOT; Crystalline phase; Scanning electron microscopy; X-ray diffraction; Sensors; CONDUCTING POLYMERS; POLYPYRROLE; PEDOT; STABILITY; IMPEDANCE; ELECTRON; DOPAMINE;

D O I：

10.1007/s10008-015-2746-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrochemical and morphological properties of thin poly(3,4-ethylenedioxy-thiophene) (PEDOT) films deposited on gold were investigated in aqueous sulfuric acid solutions. X-ray diffraction and electron microscopy were used for monitoring the morphological changes and structure evolution caused by overoxidation. The diffraction peaks of PEDOT became sharper and more intensive during the subsequent oxidation cycles. This indicates that besides the degradation of the PEDOT film, its crystallinity was gradually improved with increasing the number of oxidation cycles. These changes may result in the appearance of novel properties that may be advantageous for specific applications.

引用

页码：1247 / 1252

页数：6

共 41 条

[21] Electrocatalytic oxidation of hydrazine at overoxidized polypyrrole film modified glassy carbon electrode
Majidi, Mir Reza
Jouyban, Abolghasem
Asadpour-Zeynali, Karim
[J]. ELECTROCHIMICA ACTA, 2007, 52 (21) : 6248 - 6253
[22] The Morphology of Poly(3,4-Ethylenedioxythiophene)
Martin, David C.
Wu, Jinghang
Shaw, Charles M.
King, Zachary
Spanninga, Sarah A.
Richardson-Burns, Sarah
Hendricks, Jeffrey
Yang, Junyan
[J]. POLYMER REVIEWS, 2010, 50 (03) : 340 - 384
[23] A polymer/semiconductor write-once read-many-times memory
Möller, S
Perlov, C
Jackson, W
Taussig, C
Forrest, SR
[J]. NATURE, 2003, 426 (6963) : 166 - 169
[24] Morphological and Spectroscopic Studies of Electrochemically Deposited Poly(3,4-ethylenedioxythiophene) (PEDOT) Hole Extraction Layer for Organic Photovoltaic Device (OPVd) Fabrication
Nasybulin, Eduard
Wei, Shu
Cox, Marshall
Kymissis, Ioannis
Levon, Kalle
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (10) : 4307 - 4314
[25] Poppendieck W, 2009, IFMBE PROC, V22, P2409
[26] Nano world: A Novel Path for Modern Drug Discovery
Ranjan, Nishka
Reddy, A. H. Manjunatha
[J]. MECHANICAL DESIGN AND POWER ENGINEERING, PTS 1 AND 2, 2014, 490-491 : 123 - 128
[27] Improvement of the electrosynthesis and physicochemical properties of poly(3,4-ethylenedioxythiophene) using a sodium dodecyl sulfate micellar aqueous medium
Sakmeche, N
Aeiyach, S
Aaron, JJ
Jouini, M
Lacroix, JC
Lacaze, PC
[J]. LANGMUIR, 1999, 15 (07) : 2566 - 2574
[28] Is there an immortal memory?
Scott, JC
[J]. SCIENCE, 2004, 304 (5667) : 62 - 63
[29] Simon DT, 2009, NAT MATER, V8, P742, DOI [10.1038/nmat2494, 10.1038/NMAT2494]
[30] Copper-modified poly(3,4-ethylenedioxythiophene) layers for selective determination of dopamine in the presence of ascorbic acid: I. Role of the polymer layer thickness
Stoyanova, Aneliya
Tsakova, Vessela
[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2010, 14 (11) : 1947 - 1955

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