silicon nanoparticles – TechConnect Briefs

Influence of applying the additional continuous laser on photoluminescence properties of silicon nanoparticles produced by laser ablation in liquid

Popovic D.M., Faculty of Physics, University of Belgrade, RS

Silicon nanoparticle (Si-NPs) is attracting attention of authors in numerous fields of science. The photoluminescence properties of Si-NPs make them a candidate for biomaging applications. The one of the most promising and the simplest method [...]

The role of target warming in the synthesis of silicon nanoparticles by picosecond laser ablation in liquid

Popovic D.M., Zekic A.A., Trtica M., Stasic J., University of Belgrade-Faculty of Physics, RS

In our previous work, we investigated the LAL process of producing Si NPs with pulsed infrared transverse excited atmospheric (TEA) CO2 laser and we analyzed the role of thermal effects on the NP’s size distribution. [...]

Synthesis of silicon nanoparticles by picosecond laser ablation in liquid

Popovic D.M., University of Belgrade-Faculty of Physics, RS

The one of the most promising method for the producing of silicon-based NPs is the laser ablation of solid target in liquid (LAL), because it’s relatively simple, fast and “green”. In this work we produced [...]

Stable colloidal dispersion of luminescing silicon nanoparticles for inkjet printing

Gupta A., Khalil A.S.G., Winterer M., Wiggers H., Universität Duisburg-Essen, DE

In this study, we synthesized Si-NPs with mean diameter about 4.2 nm in a microwave plasma reactor. In order to disperse these Si-NPs in organic solvent, the surface of freshly etched Si-NPs was modified with [...]

Optical properties of silicon nanoparticles: Influence of etching, surface oxidation and surface functionalization

Gupta A., Kluge S., Schulz C., Wiggers H., Universität Duisburg-Essen, DE

In this study, we investigated the properties of Si-NPs after surface etching, surface re-oxidation and surface functionalization processes. Surface etching of as-synthesized Si-NPs with hydrofluoric acid causes a blue shift compared to their initial emission [...]

Synthesis and Electrical Characterization of Silicon Nanoparticles for Electronic Applications

Gopireddy D., Takoudis C.G., Gamota D., Zhang J., Brazis P.W., University of Illinois - Chicago, US

In an effort to assess their potential for future nanoelectronic devices, we have fabricated silicon nanoparticles field effect transistors with nanoparticles as the active channel. The nanoparticles of 10-20 nm diameters are grown on a [...]