Electrochromic-Hybrid energy storage material consisting of triphenylamine and dithienothiophene

Sebahat Topal, Ozgecan Savlug Ipek, Esma Sezer, Turan Ozturk*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


Conductive polymers are considered to be promising material for energy storage applications. Herein, a microporous hybrid energy storage material made of triphenylamine and dithienothiophene, having smart function charge property controlled by color change, is reported. Its polymer film having orange color switched to blue when a voltage is applied to charge the polymer film by oxidation. The film was obtained by potantiodynamic method, and its polymerization mechanism was explained using density functional theory (DFT) calculations. The hybrid energy storage material showed a high specific capacity of 54 mA h g−1, a high capacitance of 242F g−1 at 0.5 A g−1 and a high energy density of 43 W h kg−1 at current density of 10 A g−1. Symmetric energy storage device worked at a high voltage (3 V) and lit a red lamp for several seconds. Its combined electrochromic, high optical contrast of 60% and energy storage properties make the microporous polymer an efficient candidate for smart electronic applications, where energy capacity is monitored by simple visual color change.

Original languageEnglish
Article number133868
JournalChemical Engineering Journal
Publication statusPublished - 15 Apr 2022

Bibliographical note

Publisher Copyright:
© 2021 Elsevier B.V.


We thank The Higher Education Council of Turkey (YOK) and TUBITAK for grants to Sebahat Topal (Ph.D., 100/2000 YOK, and TUBITAK 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 of Turkey (UHeM) under grant number (Sebahat Topal project: editmb).

FundersFunder number
Higher Education Council of Turkey
National Center for High Performance Computing of Turkey
TUBITAKBIDEP 2211A, 100/2000 YOK
Ulusal Yüksek Başarımlı Hesaplama Merkezi, Istanbul Teknik Üniversitesi
Istanbul Teknik Üniversitesi42325


    • Conducting polymer
    • Dithienothiophene
    • Electrochromic
    • Energy storage
    • Hybrid electrode
    • Triphenylamine


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