Ordered Thin Films of Polyheterocycles Electrochemical Polymerization and Langmuir-Blodgett Film Formation
Abstract
The intrinsic anisotropy in electrical and optical properties of conjugated polymeric systems are of fundamental importance in a number of potential technological applications of this class of materials, such as in nonlinear optical systems. Focusing on conjugated polymers at the molecular level has led to considerable advances in the last few years in the synthesis of materials with controlled and predictable ordering. In this paper, we discuss some recent work using synchrotron radiation spectroscopy and surface FT IR spectroscopy to study the ordering of thin films of pyrroles and polypyrroles made by electrochemical oxidation and Langmuir-Blodgett film techniques. The electrochemical growth processes of thin films of polyheterocycles complexed with a variety of anions have been the subject of several studies. The electrochemical growth technique affords many degress of freedom to influence the growth process, which can lean to materials with widely varying electrical, optical and structural properties. In this paper we will discuss how ordering of electrochemically grown thin films can be studied with Near Edge x-ray Absorption Fine Structure (NEXAFS) techniques using synchrotron radiation and also with grazing incidence FT IR spectroscopy. We also report recent results with Langmuir-Blodgett films of 3-hexadecylpyrrole.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 03, 1988
- Accession Number
- ADA200809
Entities
People
- L. Samuelsen
- S. Tripathy
- T. A. Skotheim
- T. Inagaki
- Xuezong Yang