Loading...

Inkjet printing of MnO2 nanoflowers on surface-modified a4 paper for flexible all-solid-state microsupercapacitors

Sajedi Moghaddam, A ; Sharif University of Technology | 2023

0 Viewed
  1. Type of Document: Article
  2. DOI: 10.1021/acsami.2c08939
  3. Publisher: American Chemical Society , 2023
  4. Abstract:
  5. Printing technologies are gaining growing attention as a sustainable route for the fabrication of high-performance and flexible power sources such as microsupercapacitors (MSCs). Here, the inkjet printing method is utilized for the fabrication of manganese dioxide (MnO2)-based, flexible all-solid-state MSCs on surface-modified A4 paper substrate. The appropriate rheology of the formulated ethanol-based ink (Fromm number <10) and the proper dimensions of MnO2 nanoflowers (average size ∼600 nm) ensure a reliable inkjet printing process. Moreover, the underlying graphene/Ag nanowire pattern serves as a primer and highly conductive (Rs < 2 Ω sq-1) layer on top of the paper to facilitate the anchoring of MnO2 nanoflowers and rapid electron transportation. The resulting all-solid-state MSCs deliver a maximum areal capacitance of 0.68 mF cm-2 at a current density of 25 μA cm-2, reasonable durability (>80% of capacity remained after 3000 cycles), and remarkable foldability. Additionally, the inkjet-printed MSC devices deliver a superior areal energy density of 0.01 μWh cm-2 and also a power density of 1.19 μW cm-2. This study demonstrates the power of the inkjet printing method to produce MSCs on flexible substrates, which have great potential for flexible/wearable electronics. © 2023 American Chemical Society
  6. Keywords:
  7. Inkjet printing ; Microsupercapacitors ; MnO2 nanoflowers ; Paper-based devices ; Printed electronics
  8. Source: ACS Applied Materials and Interfaces ; Volume 15, Issue 3 , 2023 , Pages 3894-3903 ; 19448244 (ISSN)
  9. URL: https://pubs.acs.org/doi/10.1021/acsami.2c08939