Ramasubramanian, B., Reddy, V. S., Ye, Z., Peng, G. W., Le, Y., Ramakrishna, S., & Chellappan, V. (2024). Flexible Nanocarbon Electrodes for Holistically Engineered Solar Cell and Battery Integrated Piezoresistive Sensor. Energy Technology. Portico. https://doi.org/10.1002/ente.202400991
Abstract:
Herein, a sustainable graphitic carbon derived from waste polystyrene plastics (PS‐G) has been developed and a proof of concept for the integration of organic solar cells, Al‐ion batteries, and piezoresistive sensors based on PS‐G electrodes has been provided. First, a flexible organic solar cell (OSC) with the PS‐G interfacial layer between the photoactive material and the Al metal has enhanced charge extraction mobility with a power conversion efficiency (PCE) of 3.5%. A new range of possibilities in metal:semiconductor:carbon:metal contact and interfacial tuning in OSCs are made possible by the fact that pure PS‐G without Al can successfully extract electrons with a PCE of 0.89%. Second, when used as the cathode in an Al–carbon battery, PS‐G demonstrates a specific capacity of 148 mAh g−1 at 50 mA g−1. At different current densities, PS‐G cathodes demonstrate high cycling stability (with 65% capacity retention over 100 cycles). Finally, the best of the fabricated OSCs and the Al–carbon batteries are then combined with a piezoresistive sensor that includes an active PS‐G electrode. The battery‐powered sensor has a resistance of 40–45 × 104 Ω while the solar‐powered sensor has a resistance of 32–35 × 104 Ω, when subjected to mechanical stimuli, with a tensile strength of 20 N.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the Agency for Science, Technology and Research (A*STAR) - Singapore International Graduate Award (SINGA)
Grant Reference no. : SING-2021-02-0819
Description:
This is the peer reviewed version of the following article: Ramasubramanian, B., Reddy, V. S., Ye, Z., Peng, G. W., Le, Y., Ramakrishna, S., & Chellappan, V. (2024). Flexible Nanocarbon Electrodes for Holistically Engineered Solar Cell and Battery Integrated Piezoresistive Sensor. Energy Technology. Portico. https://doi.org/10.1002/ente.202400991, which has been published in final form at https://doi.org/10.1002/ente.202400991. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.