Silver and Gold Nanoparticles for Printed Electronics
The silicon era which started almost sixty years ago has a new competitor in applications where silicon is too expensive, fragile, and slow to market. For these applications a new disruptive technology is emerging in the form of printable electronics and electronic components using metallic inks. This ability to use inks and conventional printing techniques will have a revolutionary impact on human life by printing circuits on flexible substrates and making every print unique by using digital printing techniques. It can also be used to print transistors, displays, interconnects, sensors, touch-screens and many other printed products.
Printed circuit technology will be used in creating flat panel displays for TVs, printable electronic backplanes for TFT (Thin-Film Transistors), flexible circuits for OLED displays, and RFID (Radio- Frequency Identification) antennas. It will be used for short run electronics, disposable devices (smart cards, disposable displays, E-books), and electronic components (antennas, sensors etc.).
The printed electronic industry requires inks. UT Dots produce high quality, inexpensive, low temperature sintering nanosilver inks in large quantities. This will open doors for the large scale production of printable electronics in a cost effective process. Our silver nanoink passed the 90 degree adhesive test, showed high conductivity (~ 50% of bulk silver) after sintering at temperatures >180 C. At lower temperatures, ~ 130 C, the resistivity of 10x of bulk silver can be achieved.
High Quality Nanoparticles for the Growing Nanotechnology Industry
The Quantum Size Effect
Particles with small dimensions between 1 to 100 nanometers have generated great scientific and commercial interest due to their small sizes.
For particle sizes below approximately 10 nm, the following properties are observed:
• A decrease in the material’s melting point
• A change in the wavelengths of the light absorbed and/or emitted by the particle
For Printed Electronics