Hybrid copper complex-derived conductive patterns printed on polyimide substrates

Flash light sintered copper precursor/nanoparticle pattern with high electrical conductivity and low porosity for printed electronics

“…Continuously, the copper(II) oxide in copper(II) nitrate trihydrate was reduced to copper(I) oxide, and the copper(I) oxide in copper(II) nitrate trihydrate and copper nanoparticles was reduced to pure copper with the assistance of intermediate alcohol deduced from PVP by flash light irradiation (see chemical formulas (9), (10)) [25,26].…”

Copper conductive patterns through spray-pyrolysis of copper-diethanolamine complex solution

“…In this work, copper formate was used as the copper-ion precursor. Copper formate can be thermally decomposed to yield metallic copper and simultaneously generate hydrogen (H 2 ) gas, as shown in (1) [ 34 ]. This facilitates the reduction of Cu 2+ from copper formate to Cu(0), and prevents the oxidation of copper during annealing process.…”

Low temperature sintering process of copper fine particles under nitrogen gas flow with Cu2+-alkanolamine metallacycle compounds for electrically conductive layer formation

“…The most important advantage of CuF is its self-reduction ability, as it forms copper and releases hydrogen gas during the decomposition. 27,28 Moreover, alkanolamines also show reduction abilities. 9 This facilitates the reduction of Cu 2+ from CuF to Cu(0), and prevents the oxidation of copper during sintering and reduces surface oxides from the commercially available ne copper particles.…”