Copper inks for printed electronics: a review

Abstract

Conductive inks have attracted tremendous attention due to their better adaptability and the convenience of being fabrication on a large scale. As a new type of conductive ink, copper-based ink...

Copper particle-free ink with enhanced performance for inkjet-printed flexible UWB antennas

“…Copper nanoparticle inks, copper nanowire inks and copper particle-free inks have been developed for the printing of conductive structures. 22,23…”

“…Copper nanoparticle inks, copper nanowire inks and copper particle-free inks have been developed for the printing of conductive structures. 22,23 When compared to copper nano ink, copper particle-free ink is beneficial for inkjet printing technology since the metal copper exists in the ionic form in the ink and avoids the nozzle clogging issue that often occurs during the printing of copper nano ink. 24 Such inks are generally made from organic copper salts, amine complex agents and solvents, with or without additives.…”

Photonic sintering of copper for rapid processing of thick film conducting circuits on FTO coated glass

“…Copper potentially offers an alternative to silver in printed circuity which is the basic fundamental part of any electrical/electronic device 1 . While silver has excellent conductivity, is stable in organic suspensions and has good lifetime it is not only more expensive but also subject to fluctuations in price.…”

“…While silver has excellent conductivity, is stable in organic suspensions and has good lifetime it is not only more expensive but also subject to fluctuations in price. There is increasing interest in the use of copper as a potential printed conductive material with several options being explored including copper precursors, copper salts, copper oxide particles, nano copper and micro copper formulations 1 , 2 . Of these, copper particulate inks provide many favourable characteristics with similar rheology and printing behaviour to their silver particle counterparts.…”

Seedless wet synthesis of copper-twinned nanocrystals

“…Copper (Cu) is an earth-abundant and inexpensive metal. It possesses excellent optical, 7 electrical, 8 antibacterial, 9 and catalytic 10 properties, which are well related to the LSPR effect. However, since the predicted SPR absorption band of Cu largely overlaps with its inter-band transitions, the surface plasmon was strongly damped.…”