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Synthesis of sub-10-nm Sn nanoparticles from Sn(II) 2-ethylhexanoate by a modified polyol process and preparation of AgSn film by melting of the Sn nanoparticles
- Source :
- Thin Solid Films. 562:211-217
- Publication Year :
- 2014
- Publisher :
- Elsevier BV, 2014.
-
Abstract
- Ultrafine Sn nanoparticles (NPs) (diameter < 10 nm) exhibiting a remarkable depression in their melting point were synthesized at room temperature by a modified polyol process. For the synthesis, low-grade Sn(II) 2-ethylhexanoate and sodium borohydride were used as the precursor and reducing agent in a diethylene glycol medium. Further, polyvinyl pyrrolidone was used as a capping agent during the synthesis. The synthesized crystalline Sn NPs showed an average diameter of 7.98 nm and an extremely low melting point of 128 °C. To test the applicability of the synthesized ultrafine Sn NPs to practical systems, an Ag-based composite ink containing the Sn NPs was prepared. The ink was easily sintered through local liquid-phase sintering by melting of the ultrafine Sn NPs added as a metal binder. Therefore, despite the low-temperature (170 °C) sintering with a short duration (~ 15 min), the composite ink exhibited excellent sheet resistance.
- Subjects :
- chemistry.chemical_classification
Materials science
Reducing agent
Composite number
Metals and Alloys
Diethylene glycol
Sintering
Nanoparticle
Surfaces and Interfaces
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Sodium borohydride
chemistry.chemical_compound
chemistry
Polyol
Materials Chemistry
Melting point
Composite material
Nuclear chemistry
Subjects
Details
- ISSN :
- 00406090
- Volume :
- 562
- Database :
- OpenAIRE
- Journal :
- Thin Solid Films
- Accession number :
- edsair.doi...........e45b1fd7359e4c4b7c6f41c0a04d23f5