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Title: Vacuum thermal evaporation of polyaniline doped with camphor sulfonic acid

Abstract

Intrinsically conducting polymers belong to a class of organic polymers with intriguing electronic and physical properties specifically for electro-optical applications. Significant interest into doped polyaniline (PAni) can be attributed to its high conductivity and environmental stability. Poor dissolution in most solvents has thus far hindered the successful integration of PAni into commercial applications, which in turn, has led to the investigations of various deposition and acidic doping methods. Physical vapor deposition methods, including D.C. magnetron sputtering and vacuum thermal evaporation, have shown exceptional control over physical film properties (thickness and morphology). However, resulting films are less conductive than films deposited by conventional methods (i.e., spin and drop casting) due to interruption of the hyperconjugation of polymer chains. Specifically, vacuum thermal evaporation requires a postdoping process, which results in incorporation of impurities and oxidation of surface moieties. In this contribution, thermally evaporated films, sequentially doped by vacuum evaporation of an organic acid (camphorsulfonic acid, CSA) is explored. Spectroscopic evidence confirms the successful doping of PAni with CSA while physical characterization (atomic force microscopy) suggests films retain good morphology and are not damaged by the doping process. The procedure presented herein also combines other postpreparation methods in an attempt to improve conductivitymore » and/or substrate adhesion.« less

Authors:
; ; ; ;  [1]
  1. Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716 (United States)
Publication Date:
OSTI Identifier:
22392182
Resource Type:
Journal Article
Journal Name:
Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films
Additional Journal Information:
Journal Volume: 33; Journal Issue: 3; Other Information: (c) 2015 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0734-2101
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ATOMIC FORCE MICROSCOPY; CAMPHOR; CASTING; DOPED MATERIALS; FILMS; MAGNETRONS; MORPHOLOGY; ORGANIC POLYMERS; PHYSICAL VAPOR DEPOSITION; SULFONIC ACIDS; VACUUM EVAPORATION

Citation Formats

Boyne, Devon, Menegazzo, Nicola, Pupillo, Rachel C., Rosenthal, Joel, and Booksh, Karl S., E-mail: kbooksh@udel.edu. Vacuum thermal evaporation of polyaniline doped with camphor sulfonic acid. United States: N. p., 2015. Web. doi:10.1116/1.4916990.
Boyne, Devon, Menegazzo, Nicola, Pupillo, Rachel C., Rosenthal, Joel, & Booksh, Karl S., E-mail: kbooksh@udel.edu. Vacuum thermal evaporation of polyaniline doped with camphor sulfonic acid. United States. doi:10.1116/1.4916990.
Boyne, Devon, Menegazzo, Nicola, Pupillo, Rachel C., Rosenthal, Joel, and Booksh, Karl S., E-mail: kbooksh@udel.edu. Fri . "Vacuum thermal evaporation of polyaniline doped with camphor sulfonic acid". United States. doi:10.1116/1.4916990.
@article{osti_22392182,
title = {Vacuum thermal evaporation of polyaniline doped with camphor sulfonic acid},
author = {Boyne, Devon and Menegazzo, Nicola and Pupillo, Rachel C. and Rosenthal, Joel and Booksh, Karl S., E-mail: kbooksh@udel.edu},
abstractNote = {Intrinsically conducting polymers belong to a class of organic polymers with intriguing electronic and physical properties specifically for electro-optical applications. Significant interest into doped polyaniline (PAni) can be attributed to its high conductivity and environmental stability. Poor dissolution in most solvents has thus far hindered the successful integration of PAni into commercial applications, which in turn, has led to the investigations of various deposition and acidic doping methods. Physical vapor deposition methods, including D.C. magnetron sputtering and vacuum thermal evaporation, have shown exceptional control over physical film properties (thickness and morphology). However, resulting films are less conductive than films deposited by conventional methods (i.e., spin and drop casting) due to interruption of the hyperconjugation of polymer chains. Specifically, vacuum thermal evaporation requires a postdoping process, which results in incorporation of impurities and oxidation of surface moieties. In this contribution, thermally evaporated films, sequentially doped by vacuum evaporation of an organic acid (camphorsulfonic acid, CSA) is explored. Spectroscopic evidence confirms the successful doping of PAni with CSA while physical characterization (atomic force microscopy) suggests films retain good morphology and are not damaged by the doping process. The procedure presented herein also combines other postpreparation methods in an attempt to improve conductivity and/or substrate adhesion.},
doi = {10.1116/1.4916990},
journal = {Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films},
issn = {0734-2101},
number = 3,
volume = 33,
place = {United States},
year = {2015},
month = {5}
}