One-Pot Synthesis of Functionalised rGO/AgNPs Hybrids as Pigments for Highly Conductive Printing Inks
Vassiliki Belessi,
Apostolos Koutsioukis,
Dimitra Giasafaki,
Theodora Philippakopoulou,
Vassiliki Panagiotopoulou,
Christina Mitzithra,
Sotiria Kripotou,
Georgios Manolis,
Theodore Steriotis,
Georgia Charalambopoulou,
Vasilios Georgakilas
Affiliations
Vassiliki Belessi
Department of Graphic Design and Visual Communication, Graphic Arts Technology Study Direction, University of West Attica, Egaleo, 12243 Athens, Greece
Apostolos Koutsioukis
Department of Materials Science, University of Patras, 26504 Rio, Greece
Dimitra Giasafaki
National Centre for Scientific Research “Demokritos”, Agia Paraskevi, 15341 Athens, Greece
Theodora Philippakopoulou
Department of Graphic Design and Visual Communication, Graphic Arts Technology Study Direction, University of West Attica, Egaleo, 12243 Athens, Greece
National Centre for Scientific Research “Demokritos”, Agia Paraskevi, 15341 Athens, Greece
Sotiria Kripotou
Laboratory of Electronic Devices and Materials, Department of Electrical and Electronic Engineering, University of West Attica, Egaleo, 12244 Athens, Greece
Georgios Manolis
National Centre for Scientific Research “Demokritos”, Agia Paraskevi, 15341 Athens, Greece
Theodore Steriotis
National Centre for Scientific Research “Demokritos”, Agia Paraskevi, 15341 Athens, Greece
Georgia Charalambopoulou
National Centre for Scientific Research “Demokritos”, Agia Paraskevi, 15341 Athens, Greece
Vasilios Georgakilas
Department of Materials Science, University of Patras, 26504 Rio, Greece
This work provides a method for the development of conductive water-based printing inks for gravure, flexography and screen-printing incorporating commercial resins that are already used in the printing industry. The development of the respective conductive materials/pigments is based on the simultaneous (in one step) reduction of silver salts and graphene oxide in the presence of 2,5-diaminobenzenesulfonic acid that is used for the first time as the common in-situ reducing agent for these two reactions. The presence of aminophenylsulfonic derivatives is essential for the reduction procedure and in parallel leads to the enrichment of the graphene surface with aminophenylsulfonic groups that provide a high hydrophilicity to the final materials/pigments.
