In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage

article In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage published yes Neelima Mahato author Saurabh Singh author 12d625da-9cb3-11ed-9667-af09d37d3f0a0000-0003-2209-5269 T. V.M. Sreekanth author Kisoo Yoo author Jonghoon Kim author MaIb department We report on synthesis of highly crystalline polythiophene and its application in supercapacitor electrodes. The material exhibits a remarkably stable electrochemical behavior and an excellent device performance. The device delivers an electrode specific capacitance (Csp) of 129.13F g−1, Cell Csp of 32.28F g−1 at 0.5 A/g; energy, and power densities of ∼ 3 Wh kg−1 and 250 W kg -1, respectively at 0.5 A/g. Also, it exhibits an excellent retention of Cell Csp and coulombic efficiency up to ∼ 95 % over 10,000 continuous galvanostatic charge discharge (GCD) cycles indicating a remarkable performance by a standalone, pristine and undoped polythiophene. Electrochemical impedance spectroscopy (EIS) studies further suggest material’s stable capacitive behavior. The material’s enhanced electrochemical properties, stable behavior and outstanding performance in device application are attributed to the crystalline phases present in the polymer matrix achievable via a slow rate of synthesis; overall, an edge over other conventional synthesis methods. Elsevier2024 eng Materials Letters 0167-577X 1873-4979 00130002560000110.1016/j.matlet.2024.136483 365 Mahato, N., Singh, S., Sreekanth, T. V. M., Yoo, K., & Kim, J. (2024). In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage. Materials Letters. Elsevier. <a href="https://doi.org/10.1016/j.matlet.2024.136483">https://doi.org/10.1016/j.matlet.2024.136483</a> Mahato, Neelima, et al. “In-Situ Engineered Highly Crystalline Polythiophene Empowered Electrochemical Capacitor-I: Synthesis, Characterization, and Electrochemical Charge Storage.” Materials Letters, vol. 365, 136483, Elsevier, 2024, doi:<a href="https://doi.org/10.1016/j.matlet.2024.136483">10.1016/j.matlet.2024.136483</a>. N. Mahato, S. Singh, T. V. M. Sreekanth, K. Yoo, and J. Kim, “In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage,” Materials Letters, vol. 365. Elsevier, 2024. N. Mahato, S. Singh, T.V.M. Sreekanth, K. Yoo, J. Kim, Materials Letters 365 (2024). Mahato, Neelima, Saurabh Singh, T. V.M. Sreekanth, Kisoo Yoo, and Jonghoon Kim. “In-Situ Engineered Highly Crystalline Polythiophene Empowered Electrochemical Capacitor-I: Synthesis, Characterization, and Electrochemical Charge Storage.” Materials Letters. Elsevier, 2024. <a href="https://doi.org/10.1016/j.matlet.2024.136483">https://doi.org/10.1016/j.matlet.2024.136483</a>. Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. 2024. In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage. Materials Letters. 365, 136483. Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage. Materials Letters. 2024;365. doi:<a href="https://doi.org/10.1016/j.matlet.2024.136483">10.1016/j.matlet.2024.136483</a> 153482024-04-28T22:00:56Z2025-09-04T13:49:05Z