Characterization of Plasma‐Polymerized Thiophene Thin Films and Nanoparticles Synthesized by a Double‐Discharge Technique

Abstract

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.magnified image

Polyfluorene Thin Films Synthesized by a Novel Plasma Polymerization Method

“…The agglomeration of nano sized particulates leading to an irregular surface at R2 is an indication of a gas phase dominated plasma polymerization. A similar morphology was obtained at our earlier work when a liquid thiophene monomer was vaporized and feed to the reactor [19].…”

“…The details of the experimental setup of the plasma system are given in [17][18][19]. A part of the system, shown in Fig.…”

Plasma deposition of organic polymer films for solar cell applications

“…There are only a few studies in the literature that used plasma deposited polymeric materials for electronic applications. [16][17][18][19][20][21] The majority of these studies were focused on the conducting properties of doped films. Investigations into semiconducting properties of plasma deposited organic films has been rare.…”

Electrochemical polymerization of 2‐thiophen‐3‐yl‐malonic acid for biosensor application

“…Among the conducting polymers, the polythiophene and its derivatives have been synthesized and characterized in the last 15 years 4, 5. Among which, polythiophene is regarded as one of the most technologically promising conducting polymer because of its easy of preparation, low cost, high environment and thermal stability, relatively stable electrical conductivity and its special properties 6–8. As an illustration, polythiophene and its derivatives do not easily suffer ring opening reactions when compared to polyfurans and polypyrrols 9.…”

“…Moreover, polythiophene derivatives are particularly important since they can solve serious problems of solubility and processability of polythiophene 10–12. As a result polythiophene family has been used in a lot of applications including light emitting diodes (LED), thin‐film transistors (TFT), solar cells, and sensors, etc 8. Especially, the position‐3 in the thiophene group can modify polymer properties such as thermal stability, high electrical conductivity, biosensor and optoelectronic properties 13, 14.…”