“…Such conductive material can be used for fabrication of printed circuit boards, thin film transistors, RFID tags, solar cells, transparent conductive electrodes, touch screens, flexible displays and electrochromic devices [1][2][3][4][5][6]. Different materials can be utilized as the components of conductive inks such as molten metals, conductive polymers, carbon nanotubes, organometallic compounds and metallic nanoparticles (NPs) [1][2][3][4][5][6][7]. Among them, metallic NPs, which have a low melting point and high conductivity, are most promising for the fabrication of conductive inks.…”