An Ag-grid/graphene hybrid structure for large-scale, transparent, flexible heaters

Nanoscale
Junmo KangDoyoung Byun

Abstract

Recently, carbon materials such as carbon nanotubes and graphene have been proposed as alternatives to indium tin oxide (ITO) for fabricating transparent conducting materials. However, obtaining low sheet resistance and high transmittance of these carbon materials has been challenging due to the intrinsic properties of the materials. In this paper, we introduce highly transparent and flexible conductive films based on a hybrid structure of graphene and an Ag-grid. Electrohydrodynamic (EHD) jet printing was used to produce a micro-scale grid consisting of Ag lines less than 10 μm wide. We were able to directly write the Ag-grid on a large-area graphene/flexible substrate due to the high conductivity of graphene. The hybrid electrode could be fabricated using hot pressing transfer and EHD jet printing in a non-vacuum, maskless, and low-temperature environment. The hybrid electrode offers an effective and simple route for achieving a sheet resistance as low as ∼4 Ω per square with ∼78% optical transmittance. Finally, we demonstrate that transparent flexible heaters based on the hybrid conductive films could be used in a vehicle or a smart window system.

References

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Citations

Aug 20, 2015·Nanoscale·Kukjoo KimJang-Ung Park
Sep 10, 2015·ACS Applied Materials & Interfaces·Zhi YangJinyou Shao
May 14, 2016·ACS Applied Materials & Interfaces·Ritu GuptaGiridhar U Kulkarni
Oct 18, 2016·ACS Nano·Morteza Amjadi, Metin Sitti
Jan 13, 2017·ACS Applied Materials & Interfaces·Daniel LordanAidan J Quinn
Jan 26, 2017·ACS Applied Materials & Interfaces·Haibo DingZhongze Gu
Mar 23, 2017·ACS Applied Materials & Interfaces·Ritu GuptaAmy Marconnet
Jun 18, 2019·Advanced Materials·Zhi Hong ChenJianguo Guan
Jan 11, 2018·Advanced Materials·Dongdong LiWei Huang
Jul 16, 2020·Soft Robotics·Ye TianTian-Ling Ren
Aug 24, 2019·Nanomaterials·Francisco J RomeroNoel Rodriguez
Oct 27, 2017·ACS Applied Materials & Interfaces·In Kyu MoonJungwoo Oh
Apr 11, 2019·ACS Applied Materials & Interfaces·Luhe LiHyung Woo Lee
Apr 10, 2019·ACS Applied Materials & Interfaces·Hyun Gu KimHan-Bo-Ram Lee

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