Synthesis and ink-jet printing of highly luminescing silicon nanoparticles for printable electronics.
J Nanosci Nanotechnol
; 11(6): 5028-33, 2011 Jun.
Article
em En
| MEDLINE
| ID: mdl-21770139
ABSTRACT
The formation of stable colloidal dispersions of silicon nanoparticles (Si-NPs) is essential for the manufacturing of silicon based electronic and optoelectronic devices using cost-effective printing technologies. However, the development of Si-NPs based printable electronics has so far been hampered by the lack of long-term stability, low production rate and poor optical properties of Si-NPs ink. In this paper, we synthesized Si-NPs in a gas phase microwave plasma reactor with very high production rate, which were later treated to form a stable colloidal dispersion. These particles can be readily dispersed in a variety of organic solvents and the dispersion is stable for months. The particles show excellent optical properties (quantum yields of about 15%) and long-term photoluminescence (PL) stability. The stable ink containing functionalized Si-NPs was successfully used to print structures on glass substrates by ink-jet printing. The homogeneity and uniformity of large-area printed film was investigated using photoluminescence (PL) mapping.
Buscar no Google
Bases de dados:
MEDLINE
Idioma:
En
Revista:
J Nanosci Nanotechnol
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Alemanha