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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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Design Parameters for Subwavelength Transparent Conductive Nanolattices
Juan J Diaz Leon1, Eyal Feigenbaum, Nobuhiko P Kobayashi1
1Baskin School of Engineering, University of California , Santa Cruz, California 95064, United States.
ACS Applied Materials & Interfaces
|September 30, 2017
Summary
Highly ordered metal nanolattices fabricated using block copolymers offer a new design for transparent electrodes. Simulations show these ordered networks require shorter nanowires for high conductivity and transparency, with defined defect tolerance.
Area of Science:
- Materials Science
- Nanotechnology
- Optoelectronics
Background:
- Directed assembly of block copolymers enables fabrication of ordered metal nanowire meshes (nanolattices) over large areas.
- These nanolattices are promising alternatives to traditional random metal nanowire networks for transparent electrodes.
Purpose of the Study:
- To explore design parameters for ordered metal nanolattices as transparent conductive electrodes.
- To elucidate relationships between nanowire dimensions, defects, conductivity, and transmissivity.
- To investigate the introduction of optical and electrical anisotropy in nanolattices.
Main Methods:
- Optical and electrical simulations were employed to analyze nanolattice performance.
- Key parameters investigated include nanowire dimensions, defect density, and network ordering.
- Anisotropy was explored through simulation of varying nanolattice configurations.
Main Results:
- Ordered nanolattices significantly reduce the required nanowire length for high conductivity and transmissivity compared to random networks.
- The study quantifies the nanolattice's tolerance to defects under various design constraints.
- Optical and electrical anisotropy can be controllably introduced, expanding design possibilities.
Conclusions:
- Ordered metal nanolattices represent a tunable platform for advanced transparent electrode design.
- Simulation-driven optimization can guide the fabrication of high-performance nanolattice electrodes.
- The potential for anisotropy opens new avenues for specialized applications in flexible electronics and displays.
