Copper nanoparticles for conductive inks by water and polyol synthesis

The three main papers for this are

in situ monitoring of flash light sintering of copper nanoparticle ink for printed electronics
Hwang, Chung, Kim
Nanotachnology 23 (2012) doi: 10.1088/0957-4484/23/48/485205
Microwave assisted polyol synthesis of Cu nanoparticles
Blosi, Albonetti, Dondi, Martelli, Baldi
Journal of Nanoperticle Research (2011) 13:127-138
doi: 10.1007/s11051-010-0010-7
One step green route to narrowly dispersed copper nanocrystals
Wu, Mosher, Zeng
Journal of Nanoperticle Research (2006) 8:965-969
doi: 10.1007/s11051-005-9065-2
so if you want to read up and follow this stuff by all means do. If not you can just follow the recipes and make you own copper nanoparticles for inkjet printing of electronics.