Scalable Paper Supercapacitors for Printed Wearable ElectronicsShow others and affiliations
2022 (English)In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 14, no 50, p. 55850-Article in journal (Refereed) Published
Abstract [en]
Printed paper-based electronics offers solutions to rising energy concerns by supplying flexible, environmentally friendly, low-cost infrastructure for portable and wearable electronics. Herein, we demonstrate a scalable spray-coating approach to fabricate tailored paper poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/cellulose nanofibril (CNF) electrodes for all-printed supercapacitors. Layer-by-layer spray deposition was used to achieve high-quality electrodes with optimized electrode thickness. The morphology of these electrodes was analyzed using advanced X-ray scattering methods, revealing that spray-coated electrodes have smaller agglomerations, resulting in a homogeneous film, ultimately suggesting a better electrode manufacturing method than drop-casting. The printed paper-based supercapacitors exhibit an areal capacitance of 9.1 mF/cm2, which provides enough energy to power electrochromic indicators. The measured equivalent series resistance (ESR) is as low as 0.3 ω, due to improved contact and homogeneous electrodes. In addition, a demonstrator in the form of a self-powered wearable wristband is shown, where a large-area (90 cm2) supercapacitor is integrated with a flexible solar cell and charged by ambient indoor light. This demonstration shows the tremendous potential for sequential coating/printing methods in the scaling up of printed wearables and self-sustaining systems. © 2022 The Authors.
Place, publisher, year, edition, pages
American Chemical Society , 2022. Vol. 14, no 50, p. 55850-
Keywords [en]
GISAXS, GIWAXS, nanocellulose, PEDOT:PSS, spray coating, supercapacitors, wearable electronics, Cellulose, Coatings, Conducting polymers, Costs, Electric resistance, Flexible electronics, Paper, Styrene, Wearable technology, X ray scattering, Energy, Ethylenedioxythiophenes, Gi-SAXS, Low-costs, Nano-cellulose, Poly(3, 4-ethylenedioxythiophene):poly(styrene sulphonate), Poly(styrene sulfonate), Printed papers, Supercapacitor
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:ri:diva-62364DOI: 10.1021/acsami.2c15514Scopus ID: 2-s2.0-85144553303OAI: oai:DiVA.org:ri-62364DiVA, id: diva2:1723930
Note
Funding details: Strategiske Forskningsråd, DSF; Funding details: Horizon 2020 Framework Programme, H2020, 862095; Funding details: European Commission, EC; Funding details: Deutsches Elektronen-Synchrotron, DESY; Funding details: Stiftelsen för Strategisk Forskning, SSF; Funding details: Knut och Alice Wallenbergs Stiftelse; Funding details: Wallenberg Wood Science Center, WWSC; Funding text 1: The authors would like to thank DPP AB for the patterned current collectors and Robert Brooke for the production of current collectors. The authors acknowledge Epishine AB for designing a custom-made wearable solar cell module, especially Elin Andenberg and Dr. Jonas Bergqvist. Printed electrochromic displays are kindly provided by RISE Bio- and Organic Electronics, Norrköping. Financing was provided by the Swedish Foundation for Strategic Research, Knut and Alice Wallenberg Foundation (Wallenberg Wood Science Center), the Önnesjö Foundation, and the EU SYMPHONY project (H2020, grant number 862095). The authors thank the Synchrotron Light Source PETRA III and the beamline P03 at Deutsches Elektronen-Synchrotron (DESY) for beam time allocation. C.J.B. and S.V.R. acknowledge the kind financial support from the DESY Strategic Fund (DSF) “Investigation of processes for spraying and spray coating of hybrid cellulose-based nanostructures”. DESY is a member of the Helmholtz Association (HGF).
2023-01-042023-01-042023-06-09Bibliographically approved