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- Title
SILVER MICRO- AND NANO-PARTICLES OBTAINED USING DIFFERENT GLYCOLS AS REDUCING AGENTS AND MEASUREMENT OF THEIR CONDUCTIVITY.
- Authors
MOUDIR, NAÏMA; MOULAÏ-MOSTEFA, NADJI; BOUKENNOUS, YACINE
- Abstract
Synthesis of silver micro- and nano-particles for the preparation of conductive pastes for the metallization of solar cells was realized by chemical reduction in the presence and absence of poly(vinyl-pyrrolidone) (PVP). Silver nitrate was used as a precursor in the presence of three polyols (ethylene glycol, di-ethylene glycol and propylene glycol) tested at experimental temperatures near their boiling points. Six samples were obtained by this protocol. Three silver powders obtained without the use of PVP has a metallic luster appearance; however, the samples produced using an excess of PVP were in the form of stable colloidal dispersions of silver nano-particles. Structural characterizations of samples using a scanning electron microscope and X-ray diffractometer showed good crystallinity and spherical morphology. From DSC and TGA analyses, it was observed that all the nano-silvers present in the colloidal suspension have the same thermal behavior.
- Subjects
SILVER nanoparticles; NANOSTRUCTURED materials synthesis; GLYCOLS; REDUCING agents; THERMAL conductivity; SOLAR cells; POVIDONE
- Publication
Chemical Industry & Chemical Engineering Quarterly, 2016, Vol 22, Issue 2, p227
- ISSN
1451-9372
- Publication type
Article
- DOI
10.2298/CICEQ150106036M