Facile Synthesis of Silver Nanoparticles Useful for Fabrication of High-Conductivity Elements for Printed Electronics
Yuning LiMaterials Design and Integration Laboratory, Xerox Research Centre of Canada, Mississauga, Ontario, Canada L5K 2L1Yiliang WuMaterials Design and Integration Laboratory, Xerox Research Centre of Canada, Mississauga, Ontario, Canada L5K 2L1Beng S. OngMaterials Design and Integration Laboratory, Xerox Research Centre of Canada, Mississauga, Ontario, Canada L5K 2L1
2005en
ABI
Abstract
A facile synthesis of stable silver nanoparticles having a particle size of <10 nm is described. The synthesis involved reduction of silver acetate with a substituted hydrazine, such as PhNHNH2, in the presence of a 1-alkylamine, such as C16H33NH2, in toluene at 25-60 degrees C. Spin-coated thin films or printed electronic features of alkylamine-stabilized silver nanoparticles could be easily converted at 120-160 degrees C into highly conductive films or elements with conductivity of 2-4 x 104 S cm-1. Organic thin-film transistors with printed silver source/drain electrodes of this nature exhibited field-effect transistor properties which are similar to those of the devices using vacuum-deposited silver electrodes.
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