View : 19 Download: 0

Enhanced contrast of electrochromic full cell systems with nanocrystalline PEDOT-prussian blue

Title
Enhanced contrast of electrochromic full cell systems with nanocrystalline PEDOT-prussian blue
Authors
Kang J.-H.Paek S.-M.Choy Y.B.Hwang S.-J.Choy J.-H.
Ewha Authors
최진호황성주
SCOPUS Author ID
최진호scopus; 황성주scopus
Issue Date
2007
Journal Title
Journal of Nanoscience and Nanotechnology
ISSN
1533-4880JCR Link
Citation
vol. 7, no. 11, pp. 4131 - 4134
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Poly-(3,4-ethylenedioxythiophene) (PEDOT) is an ideal polymer for electrochromic (EC) devices due to its fast response time, high conductivity, and facile fabrication in a doped form except its demerit like an optical contrast limitation. In this study, we developed a simple way to overcome low coloration efficiency of PEDOT through fabricating a complementary PEDOT and prussian blue full cell system. Fundamental properties of EC displays, such as optical contrast, coloration efficiency, and switching speed, could be successfully optimized by controlling the deposition time and applied voltage during EDOT polymerization. In particular, UV transmittance spectra indicated that the optical contrast was enhanced up to 31∼99% at the wavelength of 600 nm. Scanning electron microscopy images showed that the optimized PEDOT and prussian blue films were deposited on ITO glass substrate with an uniform thickness of ∼180 nm and ∼190 nm, respectively. Moreover, according to the circuit analysis, the average response time of electric current for the optimized full cell system was about 400 ms. It is, therefore, concluded that such a full cell system could have high potential applications as smart windows and/or optical devices. Copyright © 2007 American Scientific Publishers All rights reserved.
DOI
10.1166/jnn.2007.106
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE