PMID- 28335500
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180216
LR  - 20181113
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 17
IP  - 3
DP  - 2017 Mar 19
TI  - Comparison of Two Types of Overoxidized PEDOT Films and Their Application in 
      Sensor Fabrication.
LID - 10.3390/s17030628 [doi]
LID - 628
AB  - Poly(3,4-ethylenedioxythiophene) (PEDOT) films were prepared by electro-oxidation 
      on Au microelectrodes in an aqueous solution. Electrolyte solutions and 
      polymerization parameters were optimized prior to overoxidation. The effect of 
      overoxidation time has been optimized by cyclic voltammetry (CV) and 
      electrochemical impedance spectroscopy (EIS), which results in the film 
      overoxidized for 45 s at 1.35 V presenting a strong adsorption. The other 
      one-step overoxidation film prepared by direct CV ranging from -0.6 V to 1.35 V 
      was polymerized for comparison. Scanning electron microscope (SEM) analysis and 
      Fourier transform infrared (FTIR) spectroscopy were used for monitoring 
      morphological changes and the evolution of functional groups. Both of them 
      indicate increased abundant oxygen functional groups and roughness, yet the 
      products exhibit dendritic morphology and piles of spherical protrusions, 
      respectively. Moreover, double-step overoxidized film showed better 
      electrochemical performance toward lead ion sensing. These characterizations 
      highlight some novel properties that may be beneficial for specific sensing 
      applications.
FAU - Hui, Yun
AU  - Hui Y
AD  - State Key Laboratory of Transducer Technology, Institute of Electronics Chinese 
      Academy of Sciences, Beijing 100190, China. huiyunccc@126.com.
AD  - School of Electronic, Electrical, and Communication Engineering, University of 
      Chinese Academy of Sciences, Beijing 100190, China. huiyunccc@126.com.
FAU - Bian, Chao
AU  - Bian C
AD  - State Key Laboratory of Transducer Technology, Institute of Electronics Chinese 
      Academy of Sciences, Beijing 100190, China. cbian@mail.ie.ac.cn.
FAU - Wang, Jinfen
AU  - Wang J
AD  - CAS Center for Excellence in Nanoscience, National Center for Nanoscience and 
      Technology, Beijing 100190, China. wangjinfen@nanoctr.cn.
FAU - Tong, Jianhua
AU  - Tong J
AD  - State Key Laboratory of Transducer Technology, Institute of Electronics Chinese 
      Academy of Sciences, Beijing 100190, China. jhtong@mail.ie.ac.cn.
FAU - Xia, Shanhong
AU  - Xia S
AD  - State Key Laboratory of Transducer Technology, Institute of Electronics Chinese 
      Academy of Sciences, Beijing 100190, China. shxia@mail.ie.ac.cn.
LA  - eng
PT  - Journal Article
DEP - 20170319
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
PMC - PMC5375914
OTO - NOTNLM
OT  - Au microelectrode
OT  - EIS
OT  - FTIR
OT  - SEM
OT  - overoxidized PEDOT
OT  - oxygenic functional groups
OT  - roughness
COIS- The authors declare no conflict of interest.
EDAT- 2017/03/25 06:00
MHDA- 2017/03/25 06:01
PMCR- 2017/03/01
CRDT- 2017/03/25 06:00
PHST- 2017/01/18 00:00 [received]
PHST- 2017/03/16 00:00 [revised]
PHST- 2017/03/17 00:00 [accepted]
PHST- 2017/03/25 06:00 [entrez]
PHST- 2017/03/25 06:00 [pubmed]
PHST- 2017/03/25 06:01 [medline]
PHST- 2017/03/01 00:00 [pmc-release]
AID - s17030628 [pii]
AID - sensors-17-00628 [pii]
AID - 10.3390/s17030628 [doi]
PST - epublish
SO  - Sensors (Basel). 2017 Mar 19;17(3):628. doi: 10.3390/s17030628.