Electrical properties of silver paste prepared from nanoparticles and lead-free frit.
J Nanosci Nanotechnol
; 7(11): 3917-9, 2007 Nov.
Article
en En
| MEDLINE
| ID: mdl-18047088
ABSTRACT
Recently, PbO containing glass systems in commercial silver paste have been used due to their low glass transition temperature, good thermal and electrical properties. However, PbO is a hazardous material to both health and the environment. In this study, Pb-free silver paste was prepared by mixing commercial silver powder and silver nanoparticles. The commercial powder has an average particle size of 1.6 microm. The silver nanoparticles with particles size of 20-50 nm were synthesized by a chemical reduction method using surfactant. Pb-free frit was added into the mixed silver powder as the amounts of 3, 6 and 9 wt%. Using the obtained paste, thick films were fabricated by a screen printing on alumina substrate and the films were fired at temperature from 400 to 550 degrees C. The films had thickness of 6-11 microm and sheet resistivity of about 4-11 microomega cm.
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Base de datos:
MEDLINE
Asunto principal:
Plata
/
Cristalización
/
Nanotecnología
/
Nanoestructuras
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Vidrio
Idioma:
En
Revista:
J Nanosci Nanotechnol
Año:
2007
Tipo del documento:
Article