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Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh
Published on: June 23, 2017
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Uniformly embedded silver nanomesh as highly bendable transparent conducting electrode
Hak-Jong Choi1, Soyoung Choo, Pil-Hoon Jung
1Department of Materials Science and Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 136-713, Korea.
Nanotechnology
|January 16, 2015
Summary
Highly bendable, transparent silver (Ag) nanomesh electrodes were fabricated on a 6-inch wafer scale. Embedding the Ag nanomesh in a polyethylene terephthalate (PET) substrate significantly enhances its stability under bending stress.
Area of Science:
- Materials Science
- Nanotechnology
- Electrical Engineering
Background:
- Development of flexible and transparent conductive electrodes is crucial for next-generation electronic devices.
- Existing electrode materials often face challenges with mechanical stability and large-scale fabrication.
Purpose of the Study:
- To develop highly bendable and transparent silver (Ag) nanomesh electrodes using scalable fabrication methods.
- To investigate the impact of fabrication techniques on the mechanical stability of Ag nanomeshes on polyethylene terephthalate (PET) substrates.
Main Methods:
- Fabrication of Ag nanomeshes with 7.5 and 10 μm pitch sizes via metal nanotransfer printing and embossing on a 6-inch wafer scale.
- Comparison of transferred Ag nanomesh versus embedded Ag nanomesh in PET substrates.
- Evaluation of optical transmittance (at 550 nm) and electrical sheet resistance.
Main Results:
- Achieved high optical transmittance (approx. 85%) and low sheet resistance (<10 Ω sq(-1)).
- Demonstrated superior bending stability for Ag nanomeshes embedded within the PET substrate compared to transferred ones.
- Successful large-scale (6-inch wafer) fabrication of the Ag nanomesh electrodes.
Conclusions:
- Embedding Ag nanomeshes in PET substrates offers a significant improvement in bending stability.
- The developed fabrication process enables the scalable production of high-performance, flexible, and transparent conductive electrodes.
