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Characterization of Plasma‐Polymerized Thiophene Thin Films and Nanoparticles Synthesized by a Double‐Discharge Technique
Author(s) -
Goktas Hilal,
Ince Fatma Gul
Publication year - 2009
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200800077
Subject(s) - x ray photoelectron spectroscopy , materials science , thin film , glow discharge , nanoparticle , polymerization , plasma polymerization , analytical chemistry (journal) , plasma , phase (matter) , chemical engineering , nanotechnology , polymer , composite material , chemistry , organic chemistry , physics , quantum mechanics , engineering
PTH nanoparticles and thin films were synthesized via a plasma polymerization technique using a double‐discharge system. This system has a fast filamentary discharge formed from the superposition of an ordinary low‐pressure dc glow discharge and a high‐current pulsed one. The samples were characterized by SEM, TEM, XPS, UV‐vis and FT‐IR spectroscopy. We found that superposing two discharges allows to control the morphology of the films. In the high‐temperature region, smooth and uniform thin films were produced, whereas gas‐phase polymerization resulted in films with grains of irregular shape. However, the films produced in the gas‐phase region exhibited highly thiophenic structures and could be dispersed in DCM, giving nanoparticles of 30 to 50 nm diameter.