Surface characterization, electrochromic and capacitive properties of poly(N-(4-(4-thieno[3,2-b]thiophen-3-yl-phenyl)phenyl)-N-phenylbenzenamine) film

Sebahat Topal, Esma Sezer, Mehmet S. Eroglu, Turan Ozturk*

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Özet

N-(4-(4-thieno [3,2-b]thiophen-3-yl-phenyl)phenyl)-N-phenylbenzenamine (TTpTPA), synthesized by Suzuki cross-coupling reaction, was electropolymerized in DCM/CAN (4/1 v/v) mixture, containing 0.1 M Bu4NPF6. Charge storage property of the polymer, investigated by electrochemical impedance spectroscopy measurements at different potentials, suggested that the highest capacitance value could be obtained at its anodic peak potentials. Double layer and low-frequency capacitances were found to be CDL = 369 Fg-1 and CLF = 447 Fg-1 at EDC = 1.23 V. These values are in good agreement with the results obtained from equivalent circuit model. Electrochromic properties of the corresponding polymer, PolyTTpTPA, were investigated by spectroelectrochemical measurements, which indicated that while the polymer had a gold-orange color in its neutral state with an absorption maximum of 378 nm, it became blue in its oxidized state with an absorption maximum of 850 nm. Chronocoulometric measurement of the film exhibited a residence time of 10 s, indicating a fast response time and stable photoelectrochemical behavior, which are the most important parameters for electrochromic applications. In addition, hydrophobic property of the film, having a contact angle measurement of 115°, is a good advantage for electronic applications for outdoor and wet areas. This work demonstrates that reversible capacitive current property and porous structure of PolyTTpTPA, supported by SEM and AFM images, make it a good candidate for electrochromic and capacitor devices.

Orijinal dilİngilizce
Makale numarası122954
DergiPolymer
Hacim209
DOI'lar
Yayın durumuYayınlandı - 17 Kas 2020

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© 2020 Elsevier Ltd

Finansman

We thank The Higher Education Council of Turkey (YOK) and TUBITAK for grants to Sebahat Topal (Ph.D., 100/2000 YOK, and TUBİTAK BIDEP 2211A ), and Istanbul Technical University Research Fund (Project number 42325 ) and Unsped Global Lojistik for financial supports. We are indebted to National Center for High Performance Computing (UYBHM) for the computational chemistry studies (Sebahat Topal project: editmb). We also thank to Prof. Dr. Mine Yurtsever of ITU for her discussion on computational studies. We thank The Higher Education Council of Turkey (YOK) and TUBITAK for grants to Sebahat Topal (Ph.D. 100/2000 YOK, and TUBİTAK BIDEP 2211A), and Istanbul Technical University Research Fund (Project number 42325) and Unsped Global Lojistik for financial supports. We are indebted to National Center for High Performance Computing (UYBHM) for the computational chemistry studies (Sebahat Topal project: editmb). We also thank to Prof. Dr. Mine Yurtsever of ITU for her discussion on computational studies.

FinansörlerFinansör numarası
Higher Education Council of Turkey
UYBHM
YOK
International Technological University
Türkiye Bilimsel ve Teknolojik Araştirma KurumuBIDEP 2211A, 100/2000 YOK
Istanbul Teknik Üniversitesi42325
Sheikh Bahaei National High Performance Computing Center, Isfahan University of Technology

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