1 research outputs found
Systematic Comparison between Half and Full Dielectric Barrier Discharges Based on the Low Temperature Plasma Probe (LTP) and Dielectric Barrier Discharge for Soft Ionization (DBDI) Configurations
Dielectric
barrier discharge (DBD)-based analytical applications
have experienced rapid development in recent years. DBD designs and
parameters and the application they are used for can vary considerably.
This leads to a diverse field with many apparently unique systems
that are all based on the same physical principle. The most significant
changes among DBDs used for chemical analysis are in how the discharge
electrodes are separated from the ignited discharge gas. While the
official definition of a DBD states that at least one electrode has
to be covered by a dielectric to be considered a DBD, configurations
with both electrodes covered by dielectric layers can also be realized.
The electrode surface plays a major role in several plasma-related
technical fields, surface treatment or sputtering processes, for example,
and has hence been studied in great detail. Analytical DBDs are often
operated at low power and atmospheric pressure, making a direct transfer
of insight and know-how gained from the aforementioned well-studied
fields complicated. This work focuses on comparing two DBD configurations:
the low temperature plasma probe (LTP) and the dielectric barrier
discharge for soft ionization (DBDI). The LTP is representative of
a DBD with one covered electrode and the DBDI of a design in which
both electrodes are covered. These two configurations are well suited
for a systematic comparison due to their similar geometric designs
based on a dielectric capillary