A gas sensor was developed by depositing polythiophene nanofibers on the surface of ZnO/36° YX LiTaO3 layered
surface acoustic wave (SAW) transducer and tested towards different concentrations of hydrogen gas in synthetic air.
Polythiophene nanofibers were synthesized by using a template-free method through the introduction of an initiator into
the reaction mixture of a rapidly mixed reaction between the monomer (thiophene) and the oxidant. The yield of the
reaction was characterized using scanning electron microscopy (SEM) as well as Ultraviolet-visible (UV-vis) and
Fourier Transform Infrared (FTIR) spectroscopies. The frequency shift due to the sensor response was ~17 kHz towards
1% of H2. All tests were conducted at room temperature. The sensor performance was assessed over a two day period
and a high degree of repeatability was obtained.
Polyanisidine nanofibers gas sensor based on a ZnO/36° YX LiTaO3 surface acoustic wave (SAW) transducer was
developed and tested at different concentrations of hydrogen gas in synthetic air. Nanofibrous mats of polyanisidine were
synthesized without the need for templates or functional dopants by simply introducing an initiator into the reaction
mixture of a rapidly mixed reaction between the monomer (anisidine) and the oxidant. The polyanisidine nanofibers are
characterized using scanning electron microscopy (SEM) and Ultraviolet-Visible Spectroscopy (UV-vis). Polyanisidine
nanofibers were deposited onto the SAW transducer and exposed to different concentrations of hydrogen gas. The
frequency shift due to the sensor response was 294 kHz towards 1% of H2. All tests were conducted at room temperature
and the sensor performance was assessed for a two day period with a high degree of reproducibility obtained.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.