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Low‐temperature sintered conductive silver patterns obtained by inkjet printing for plastic electronics
Author(s) -
Scandurra Antonino,
Francesco Indelli Giuseppe,
Graziana Spartà Noemi,
Galliano Francesco,
Ravesi Sebastiano,
Pignataro Salvatore
Publication year - 2010
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.3229
Subject(s) - sintering , materials science , x ray photoelectron spectroscopy , electrical resistivity and conductivity , scanning electron microscope , inkwell , conductive ink , silver nanoparticle , metal , printed electronics , chemical engineering , characterization (materials science) , composite material , electrical conductor , coating , nanoscopic scale , carbon fibers , nanotechnology , metallurgy , nanoparticle , sheet resistance , layer (electronics) , composite number , electrical engineering , engineering
Silver metal patterns onto plastic substrates have been obtained by inkjet printing with commercial ink based on silver nanoscale particles. Morphological characterization by scanning electron microscopy of spin‐coating processed films indicates that a sintering treatment at 250 °C for 30 min is enough to sinterize the silver metal nanoparticles. X‐ray photoelectron spectroscopy characterization of sintered metal films shows that the sinterization is accompanied by a reduction of carbon surface concentration coming from carbon‐containing chemical compounds present in the ink formulation. After sintering at 250 °C for 30 min, the material shows typical electrical resistivity of 4.6 × 10 −6 Ωcm (i.e. about three times the value of bulk silver). Printed test structures show typical resistivity after sintering at 250 °C for 30 min in the range of 5–7 × 10 −6 Ωcm. Copyright © 2010 John Wiley & Sons, Ltd.