3D printed polymer based flexible electrodes for reverse electrowetting on dielectric energy harvesting

Pashupati R. Adhikari; Nurul M. Islam; Yijie Jiang; Russell C. Reid; Ifana Mahbub

doi:10.1117/12.2627203

30 May 2022 3D printed polymer based flexible electrodes for reverse electrowetting on dielectric energy harvesting

Pashupati R. Adhikari, Nurul M. Islam, Yijie Jiang, Russell C. Reid, Ifana Mahbub

Proceedings Volume PC12090, Energy Harvesting and Storage: Materials, Devices, and Applications XII; PC1209005 (2022) https://doi.org/10.1117/12.2627203
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

This work presents 3D printed polymer-based flexible electrode substrates exhibiting high surface area and flexibility in reverse electrowetting-on-dielectric energy harvesting for powering patchable human health monitoring sensors. Composite electrode substrates are printed using polydimethylsiloxane (PDMS) polymer and carbon black in 20:1 ratio by weight to provide some mechanical strength to the electrodes. Thin film layers of titanium for current collection and aluminum oxide as dielectric are deposited on the substrates to complete the electrode fabrication process. Without applying any bias voltage, the AC current due to periodic variance in capacitance resulting from mechanical modulation of an electrolyte droplet between two electrodes is measured for a low frequency range that falls within human motion activities. Mechanical integrity of the electrodes are characterized in terms of stress-strain analysis demonstrating robustness of their longevity.

Conference Presentation

Citation Download Citation

Pashupati R. Adhikari, Nurul M. Islam, Yijie Jiang, Russell C. Reid, and Ifana Mahbub "3D printed polymer based flexible electrodes for reverse electrowetting on dielectric energy harvesting", Proc. SPIE PC12090, Energy Harvesting and Storage: Materials, Devices, and Applications XII, PC1209005 (30 May 2022); https://doi.org/10.1117/12.2627203

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