Low power stretchable active-matrix red, green, blue (RGB) electrochromic device array of poly(3-methylthiophene)/Prussian blue
- Authors
- Kim, Dong Sik; Park, Heun; Hong, Soo Yeong; Yun, Junyeong; Lee, Geumbee; Lee, Jin Ho; Sun, Lianfang; Zi, Goangseup; Ha, Jeong Sook
- Issue Date
- 31-3월-2019
- Publisher
- ELSEVIER
- Keywords
- Poly(3-methylthiophene); Prussian blue; Electrochromic device; Active-matrix display; Stretchable electronics
- Citation
- APPLIED SURFACE SCIENCE, v.471, pp.300 - 308
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 471
- Start Page
- 300
- End Page
- 308
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/66583
- DOI
- 10.1016/j.apsusc.2018.12.032
- ISSN
- 0169-4332
- Abstract
- We report the fabrication of a stretchable array of active-matrix (AM) electrochromic devices (ECDs). The ECD is made of poly(3-methylthiophene) and Prussian blue electrodes with a mixed gel electrolyte of acetonitrile, poly (methyl methacrylate), propylene carbonate, and lithium perchlorate. The ECD displays can express red, green, or blue (RGB) depending on the applied voltage and has a high stability in air. It exhibits low power consumption levels of 331 and 378 mu W cm(-2) (10 s duration) at -1.0 and 1.0 V, respectively, and a high coloration efficiency of 201.6 cm(2) C-1 at 1.0 V. A 4 x 4 AM ECD array is integrated on a deformable Ecoflex substrate via a dry transfer method using patterned liquid metal interconnections. The display shows a mechanical stability under bending and biaxial stretching by 30%. Finite element method analysis of the strain distribution also confirms that strain is not applied to the ECDs, guaranteeing stable operation of the array under deformation. Furthermore, a stretchable 6 x 6 AM ECD array for higher resolution display also exhibits mechanical stability under 30% biaxial stretching. This work demonstrates the high potential of our stretchable ECD array in low power-consuming displays for stretchable electronics, wearable devices, and electronic skin.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
- College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.