Gold nanoparticles are an effective option for formulating inkjet-based conductive inks, for printing various patterns and creating sensing devices on affordable and biodegradable substrates, like commercial photo papers. Customizing gold nanoparticle ink formulations is still difficult since the ink needs to have certain physical, chemical, and rheological characteristics in order to have the right jettable behavior and printable qualities. To allow for a smooth and optimum flow through the nozzles, it should display a well-controlled viscoelastic response. It should also cure right away to help the deposited feature retain its shape. Testing inkjet process capabilities with gold nanoparticle ink formulations demonstrates the possibilites of printing these materials.
