Electrochemical nano-architectures: Fabrication, growth mechanism, and application

AEI 4

Seungil Cho, chosi1@gmail.com, Rui Xiao, xiaorui9703@hotmail.com, Dong Hwa Choi, Ran Liu, ranliu@umd.edu, and Sang Bok Lee, slee@umd.edu. Department of Chemistry and Biochemistry, University of Maryland, Chemistry Building, College Park, ME 20742
Organic electronic devices such as organic FET and organic light emitting diodes have attracted much attention from both industry and academy with the potential of being flexible, thin, light weight, inexpensive, etc. The new emerging nanotechnologies allow the synthesis and characterization of various nanostructures, which can be the building components for such devices. Template synthesis is one of the most fascinating techniques to synthesize desired nanostructures because of its simplicity and diverse applicability. Various materials including metals, conducting polymers, and semiconductors could be fabricated chemically or electrochemically within the pores of a membrane. Even though the electrochemical method has advantages over the chemical method, its synthetic mechanism is not well understood. Here, we report various schemes to fabricate conducting-polymer or metallic nanostructures electrochemically. A synthetic mechanism is proposed to explain the growth of corresponding nanostructures. Finally, we demonstrated the applications of conducting polymer nanostructures to ultrafast flexible electrochromic devices.