Effect of metal powder packing on the conductivity of nanometal ink.
The power of nanotechnology is realized in its application in numerous areas. One such area is undoubtedly the use of metallic nanoparticles as a direct write application. An effort in this area has resulted in a conductive ink whose conductivity approaches 60-70% that of the bulk copper. Such an ink has been developed by reducing silver, gold, and copper nano-sized powders by a wet method and followed by a heat treatment at less than 400 degrees C. The conductivity of the resulting ink product was found to be very much affected by how various sizes of metal powders are packed when particles were dried and packed on various substrates. The effect of packing and various kinds of metal powders on the eventual conductivity of the final product of the ink has been described and discussed in this paper.
Center for Accelerated Applications at the Nanoscale, South Dakota School of Mines and Technology, Rapid City, SD 57701, USA.
Nam-Soo
NS
Kim
Anthony K
AK
Amert
Stephen M
SM
Woessner
Shawn
S
Decker
Sun-Mee
SM
Kang
Kenneth N
KN
Han
D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D007281:Ink; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D011208:Powders; D011327:Printing / Q000379:methods*; D013499:Surface Properties
D046911:Macromolecular Substances; D008670:Metals; D011208:Powders