Microscale Patterning of Electrochromic Polymer Films via Soft Lithography

Autor: Jae-Yeong Jung, Seokwon Joo, Da-Seul Kim, Kyoung-Hwan Kim, Tae Soup Shim, Soonmin Seo, Ju-Hyung Kim
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: International Journal of Polymer Science, Vol 2018 (2018)
Druh dokumentu: article
ISSN: 1687-9422
1687-9430
DOI: 10.1155/2018/6365096
Popis: We present a direct fabrication technique of patterned polymeric electrochromic (EC) devices via soft lithography, enabling both negative patterning and positive patterning of the polymer. For this work, elastomeric polydimethylsiloxane (PDMS) molds were employed as not only stamps for direct contact printing of polymer inks but also templates for dewetting of polymer solutions under mild experimental conditions. We performed both negative patterning and positive patterning of a prototypical EC polymer and investigated the EC device characteristics according to solvents, solution concentrations, and pattern types. Eventually, the complex patterns, which cannot be realized by conventional shadow masking processes, and large-area structures were successfully demonstrated. We anticipate that these results will be applied to the development of various patterned devices and circuits, which may lead to further applications.
Databáze: Directory of Open Access Journals
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