| Titre : |
Near-IR sintering of conductive silver nanoparticle ink with in situ resistance measurement |
| Type de document : |
texte imprimé |
| Auteurs : |
David J. Keller, Auteur ; Krystopher S. Jochem, Auteur ; J. Suszynski, Auteur ; Lorraine F. Francis, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 1699-1705 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Argent
Conduction électrique
Encre -- Séchage sous rayonnement infrarouge
Encre électronique
FrittageLe frittage est un procédé de fabrication de pièces consistant à chauffer une poudre sans la mener jusqu’à la fusion. Sous l'effet de la chaleur, les grains se soudent entre eux, ce qui forme la cohésion de la pièce.
Impression jet d'encre
Nanoparticules
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Metal nanoparticle inks are excellent options for printing low-resistance metal conductors and electrical interconnects. However, after deposition, these inks require high-temperature annealing to sinter and increase conductivity. Infrared (IR) heaters are an efficient, roll-to-roll compatible method to apply thermal energy. Here, we characterize the effect of near-infrared (N-IR) heating on the structure and properties of printed silver nanoparticle ink (UTD Ag40x, UT Dots Inc.). A method was developed to measure the resistance and temperature of printed conductive inks as a function of exposure to the IR heater. The N-IR heater was found to sinter the Ag40x silver samples (lower the resistance of 7 mm printed lines to 1000 Ω) in 11.6 ± 1.5 min at maximum intensity with a large drop from the highest measured resistance (60 MΩ) to 1000 Ω in 1.2 ± 0.2 min. Decreasing the heater power increased the time to reach 1000 Ω (to 28.3 ± 2.0 min at 80%), but reducing from 60 MΩ to 1000 Ω still only took 1.9 ± 0.3 min. This suggests sintering progresses rapidly once initiated. SEM images of the ink before and after IR heating show microstructural changes associated with sintering and indicate the role of agglomerates and organic binders in impeding sintering. |
| Note de contenu : |
- EXPERIMENTAL METHODS AND MATERIALS : Aerosol jet printing of silver ink - IR sintering of silver ink - Temperature monitoring - Scanning electron microscopy of silver ink
- RESULTS AND DISCUSSION : Resistance measurements - Temperature changes during sintering - SEM characterization |
| DOI : |
10.1007/s11998-019-00268-5 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00268-5.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33423 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 6 (11/2019) . - p. 1699-1705
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