Journal
ADVANCED MATERIALS TECHNOLOGIES
Volume 6, Issue 10, Pages -Publisher
WILEY
DOI: 10.1002/admt.202100613
Keywords
flexible electronics; poly(3; 4-ethylenedioxythiophene)-tosylate; pyridine inhibitor; temperature gradient
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Funding
- National Research Foundation of Korea [NRF-2020R1A2C1005763]
- Bio & Medical Technology Development Program of the National Research Foundation (NRF) - Ministry of Science ICT [NRF-2017M3A9E2063256]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry Energy (MOTIE) [20194030202340]
- Electronics and Telecommunications Research Institute (ETRI) - Korean government [20ZS1200]
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This paper introduces a method of using selective temperature activation of monomer precursor to pattern polymers on a substrate, allowing for the fabrication of various surface morphologies. This approach demonstrates the potential for quickly and inexpensively developing prototype devices in the field of flexible electronics.
Flexible conducting polymers are an integral part of emerging flexible and functional electronics such as rollables, photovoltaics, and wearables. Patterning the polymers into various surface morphologies is essential to fabricating such devices. Introduced here is an approach of realizing the pattern by polymerizing a precursor solution into the shape of the desired pattern on substrate. Selective temperature activation of the monomer precursor containing an inhibitor leads to the formation of the polymer only on the area of the desired pattern, thereby accomplishing the pattern formation. Even multilevel and graduated patterns, not readily realizable with the conventional lithography, can be formed autonomously. Flexible electrode arrays, a foldable supercapacitor, and an electrochromic device are fabricated to demonstrate the utility of the patterning approach and to showcase development of prototype devices quickly and inexpensively.
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