期刊
SYNTHETIC METALS
卷 161, 期 13-14, 页码 1159-1165出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2011.03.024
关键词
PEDOT; Conducting thin film; Flexible electrode; Vapor phase polymerization
资金
- Center for Advanced Microelectronics Manufacturing (CAMM) at Binghamton University, DARPA, NASA through the Center for Autonomous Solar Power (CASP) at Binghamton University [HR0011101002]
- Advanced Diagnostic Laboratory at Binghamton University
Recently, conducting polymer thin films have been investigated as transparent electrodes in photovoltaic devices and organic light emitting diodes. Due to its relatively high conductivity and excellent transmission in the visible region, poly (3, 4-ethyelenedioxythiophene) (PEDOT) has been shown to be a viable option for such applications. Herein described is a method for the vapor phase polymerization (VPP) of transparent PEDOT thin film electrodes on flexible polyethylene naphthalate (PEN) substrates and the comparison of this VPP method with two current approaches to PEDOT deposition: solution-based in situ polymerization and spin coating a dispersion of PEDOT:PSS. Electrical conductivities and UV-vis transmittances were measured for films produced by each of these methods, with VPP PEDOT showing both the highest conductivity (approx. 600 S/cm) and transmittance (>94% at 550 nm). The surface morphologies of the films were compared using AFM and SEM imaging. The stability of these PEDOT films, stored under ambient conditions, was investigated by monitoring the conductivity and transmittance of the thin films over time. (C) 2011 Elsevier B.V. All rights reserved.
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