title: Electrochemical fluorescence switching from a patternable poly(1,3,4-oxadiazole) thin film.
abstract: A highly soluble poly(1,3,4-oxadiazole) (POD) substituted with long alkyl chains was examined for electrochemical fluorescence switching. The high solubility of the polymers enabled a simple fabrication of an electrochemical cell, which showed reversible fluorescence switching between dark (n-doping) and bright (neutral) states with a maximum on/off ratio of 2.5 and a cyclability longer than 1000 cycles. Photochemical cleavage of the oxadiazole in POD allowed photo-patterning of the POD film upon exposure to UV source. The patterned POD films displayed patterned image reversibly under a step potential of +1.8/-1.8 V.
authors.affiliation: Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea.
authors.forename: Seogjae
authors.initials: S
authors.lastname: Seo
authors.forename: Yuna
authors.initials: Y
authors.lastname: Kim
authors.forename: Jungmok
authors.initials: J
authors.lastname: You
authors.forename: Bhimrao D
authors.initials: BD
authors.lastname: Sarwade
authors.forename: Prakash P
authors.initials: PP
authors.lastname: Wadgaonkar
authors.forename: Shamal K
authors.initials: SK
authors.lastname: Menon
authors.forename: Arvind S
authors.initials: AS
authors.lastname: More
authors.forename: Eunkyoung
authors.initials: E
authors.lastname: Kim
mesh_terms: D004563:Electrochemistry / Q000295:instrumentation* / Q000379:methods; D005453:Fluorescence; D010069:Oxadiazoles / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D010069:Oxadiazoles; D011108:Polymers