title: Neutral color tuning of polymer electrochromic devices using an organic dye.
abstract: Herein, we present a facile, one-step method to color tune electrochromic devices (ECDs) that switch between two neutral colors via in situ electrochemical polymerization of electroactive monomers in the presence of a small molecule organic yellow dye using all commercially available materials. These devices exhibited photopic contrasts of ca. 30% without background correction when assembled on flexible PET-ITO substrates. In addition, devices exhibited switching speeds as low as 1 second, color uniformity, and stability. Large defect free ECDs of 100 cm(2) were fabricated exceeding the active switch area required for goggles, lenses, and small display applications.
authors.affiliation: Department of Chemistry, 55 N. Eagleville Road, University of Connecticut, Storrs, CT 06269, USA. g.sotzing@uconn.edu.
authors.forename: Yumin
authors.initials: Y
authors.lastname: Zhu
authors.forename: Michael T
authors.initials: MT
authors.lastname: Otley
authors.forename: Amrita
authors.initials: A
authors.lastname: Kumar
authors.forename: Mengfang
authors.initials: M
authors.lastname: Li
authors.forename: Xiaozheng
authors.initials: X
authors.lastname: Zhang
authors.forename: Chris
authors.initials: C
authors.lastname: Asemota
authors.forename: Gregory A
authors.initials: GA
authors.lastname: Sotzing