PEDOT:PSS/Bacterial Cellulose-based soft actuator under triangle and square wave: Deflection, response and fidelity

Najathulla, Bhagavathi Chalil and Deshpande, Atul Suresh and Khandelwal, Mudrika (2022) PEDOT:PSS/Bacterial Cellulose-based soft actuator under triangle and square wave: Deflection, response and fidelity. Synthetic Metals, 286. pp. 1-7. ISSN 0379-6779

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Poly(3,4-ethylene dioxythiophene) polystyrene sulfonate (PEDOT:PSS) is a preferred conducting polymer owing to its high conductivity and processability. PEDOT: PSS on the application of a potential bias can transact ions with surrounding electrolyte causing a volume change. This reversible volume change is exploited to prepare a bilayer actuator with bacterial cellulose as the substrate. The actuation response is compared for two waveforms – square wave and triangular wave. A large deflection of 5.2 mm per voltage applied was observed for the square wave with a maximum voltage of 1.5 V and a dwell time of 20 s. An in-house developed method based on a smartphone camera was used to track and measure the deflection. Effect of voltage and frequency are also reported to get insights into the mechanism of actuation. This electro-chemo-mechanical soft actuator can have potential applications in biomimetic soft robotics. © 2022

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IITH Creators:
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Khandelwal, Mudrika
Item Type: Article
Additional Information: The authors are grateful to the Indian Institute of Technology, Hyderabad for providing the necessary research facilities to conduct this work. The JEOL JSM-7800F scanning electron microscope used in this work was obtained from the funding given by the Department of Science and Technology under DST-FIST program (Grant no. SR/FST/ETI-421/2016 ). We are also thankful to Dr. Ranjith Ramadurai, Professor, Dept. of Materials Science and Metallurgical Engineering, IIT Hyderabad for fruitful discussions.
Uncontrolled Keywords: Bacterial cellulose; Bilayer actuator; Conjugated polymer; Poly(3,4-ethylenedioxy thiophene):Polystyrene sulfonate (PEDOT:PSS); Soft actuator
Subjects: Others > Metallurgy Metallurgical Engineering
Materials Engineering > Materials engineering
Divisions: Department of Material Science Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 28 Jun 2022 10:14
Last Modified: 29 Jun 2022 09:47
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