High optical and switching performance electrochromic devices based on a zinc oxide nanowire with poly(methyl methacrylate) gel electrolytes

Journal Article · Mon Nov 10 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4901443· OSTI ID:22391971

Chun, Young Tea; Chu, Daping ^[1]; Neeves, Matthew; Placido, Frank ^[2]; Smithwick, Quinn ^[3]

---

1. Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA (United Kingdom)
2. Thin Film Centre, University of the West of Scotland, Paisley PA1 2BE (United Kingdom)
3. Disney Research, 521 Circle Seven Drive, Glendale, Los Angeles, California 91201 (United States)

High performance electrochromic devices have been fabricated and demonstrated utilizing a solid polymer electrolyte and zinc oxide (ZnO) nanowire (NW) array counter electrode. The poly(methyl methacrylate) based polymer electrolyte was spin coated upon hydrothermally grown ZnO NW array counter electrodes, while electron beam evaporated NiO{sub x} thin films formed the working electrodes. Excellent optical contrast and switching speeds were observed in the fabricated devices with active areas of 2 cm{sup 2}, exhibiting an optical contrast of 73.11% at the wavelength of 470 nm, combined with a fast switching time of 0.2 s and 0.4 s for bleaching and coloration, respectively.

• OSTI ID: 22391971
• Journal Information: Applied Physics Letters, Vol. 105, Issue 19; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BLEACHING
COLORATION
ELECTROCHROMISM
ELECTRODES
ELECTROLYTES
ELECTRON BEAMS
METHACRYLIC ACID ESTERS
NANOWIRES
NICKEL OXIDES
POLYMERS
THIN FILMS
ZINC OXIDES