One step synthesis of uniform organic silver ink drawing directly on paper substrates

Abstract

A new uniform organic silver ink, for writing directly on paper, was synthesized by a one step method using ethanolamine as the complex agent of silver acetate and ethylene glycol (EG) and ethanol (EA) as a complex solvent. The patterns or lines drawn with the as-prepared organic silver ink easily formed a favorable conductive connection on a sulfuric paper substrate at 200 °C. Interestingly, the coffee ring and solvent contraction effects, which often go with the drawn lines by silver inks, could be effectively improved. The magnitude, intercontact of particles and residual organic species are mainly responsible for the conductivity of the silver patterns.