Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 112, Issue 46, Pages 14138-14143Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1509958112
Keywords
transparent conductor; solution shearing; PEDOT:PSS
Categories
Funding
- Department of Energy (DOE), Bridging Research Interactions through collaborative Development Grants in Energy (BRIDGE) program [DE-FOA-0000654-1588]
- Stanford Global Climate and Energy Program
- Tomkat Center for Sustainable Energy
- National Science Foundation [DMR-1303178]
- DOE, Laboratory Directed Research and Development [DE-AC02-76SF00515]
- Swedish Knut and Alice Wallenberg Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1303178] Funding Source: National Science Foundation
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With consumer electronics transitioning toward flexible products, there is a growing need for high-performance, mechanically robust, and inexpensive transparent conductors (TCs) for optoelectronic device integration. Herein, we report the scalable fabrication of highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) thin films via solution shearing. Specific control over deposition conditions allows for tunable phase separation and preferential PEDOT backbone alignment, resulting in record-high electrical conductivities of 4,600 +/- 100 S/cm while maintaining high optical transparency. High-performance solution-sheared TC PEDOT: PSS films were used as patterned electrodes in capacitive touch sensors and organic photovoltaics to demonstrate practical viability in optoelectronic applications.
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