3 rd International Conference on Light and Light-based Technologies , Ankara, Türkiye, 25 - 27 Mayıs 2022, ss.77
Aerosol Jet Printing (AJP) is emerging technology
for manufacturing printed electronics due to its high process speed, low
material consumption and neither masking nor vacuuming required. This technique
allows to printing lines or curves with different inks on various substrates. Gold,
silver, copper, platinum, ruthenate, polyamide, UV acrylics, organic
semiconductors, enzymes and proteins can be selected to main substance of inks
for developing different applications, including; active and
passive electronic components, actuators, sensors with this technique. Process parameters like sheath
gas flow, atomizer flow, ink temperature and printing speed affect the printing
quality. Therefore, system must be optimized for printing high electrical
conductive electrodes. Width, thickness and geometry of interdigital electrodes
highly affect the device efficiency. For example, to product high efficiency
solar panel needs to qualified metallization process and this technique could allow
this [6]. In this study, interdigital electrodes in different geometry were
developed and printed on various substrates. Electrodes were printed through
ultrasonic atomizer header to Polyimide, PET, Si, Glass and Ge substrates. The
widths, thicknesses and electrical resistances of these printed electrodes were
measured and compared with each other. Line widths of these electrodes are in the
range of 15-80 µm, thicknesses are in the range of 1-2 µm, and electrical resistances
are in the range of 0.5 - 0.9 ohms.