Towards controllable optical properties of silicon based nanoparticles for applications in opto-electronics

Trave, Enrico; Bello, Valentina; Enrichi, Francesco; Mattei, Giovanni; Borsella, E.; Carpanese, M.; Falconieri, M.; Abate, Chiara; Herlin‐Boime, Nathalie; Jursiokova, K.; Costa, F.M.; Costa, Liliana Vale; Gini, L.

doi:10.1016/j.optmat.2004.08.055

Cited by 16 publications

(5 citation statements)

References 28 publications

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“…Enhancement of luminescence emission from pyrolytic Si NPs was observed after thermal oxidation [25,33] and wet chemical soft oxidation reactions [34,35]. These results underline the importance of the quality of the oxide capping layer for the passivation of defect states that can otherwise quench the luminescence emission [35,36].…”

Section: Synthesis and Optical Properties Of Si Nanoparticlesmentioning

confidence: 69%

Biomedical and Sensor Applications of Silicon Nanoparticles

Borsella

Falconieri

Herlin

et al. 2010

Silicon Nanocrystals

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Section: Synthesis and Optical Properties Of Si Nanoparticlesmentioning

confidence: 69%

Biomedical and Sensor Applications of Silicon Nanoparticles

Borsella

Falconieri

Herlin

et al. 2010

Silicon Nanocrystals

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“…The enhancement is believed to be due to an energy transfer process from optically excited Si nanocrystals to Er, which efficiently increases the excitation cross section and could be exploited for optimization of Er-doped optical amplifiers. Si-based nanoparticles, prepared by CO 2 laser-induced dissociation of silane molecules in a gas-flow reactor, were integrated into an Er-doped silica glass by standard dispersion procedure and sol-gel processing [43]. The sensitization effect of Si-based nanoparticles on the 1.54 µm Er emission was clearly demonstrated and patented for further applications.…”

Section: Laser Pyrolysis For Nanopowder Productionmentioning

confidence: 99%

IR multiple-photon excitation of polyatomic molecules: a route towards nanostructures

Borsella¹,

Botti²,

Caneve³

et al. 2008

Phys. Scr.

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The availability of high power IR laser sources in the 1980s paved the way to new attractive experiments for driving chemical reactions, based on the selective excitation of vibrational modes in polyatomic molecules up to and above the dissociation threshold. The process was first studied in the collisionless regime for applications to laser isotope separation and selective chemistry, and later in collision-assisted conditions leading to the synthesis of nanostructures. In particular, the mechanisms of IR laser pyrolysis of SiH 4 and hydrocarbons were investigated in order to control the production of silicon-and carbon-based nanoaggregates. For this purpose, different on-line diagnostics were utilized to monitor the gas-phase reaction intermediates and the process of particle nucleation and growth. The basic principles of the process of multiple-photon excitation of polyatomic molecules and its applications to the synthesis of nanostructures will be reviewed in this paper. Peculiar optical properties of silicon nanoparticles and carbon nanotubes obtained as final products of the developed processes will be described in relation to remarkable applications in several fields.

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“…Synthesis of nanoscale materials have achieved an immense interest from basic scientific research to modern technological fields due to their unique shape-dependent physicochemical properties 1 2 and their promising applications in catalysis, [3][4][5] microelectronics, 6 optoelectronics, [7][8][9][10][11] magnetics, 12 and biology. [13][14][15] In recent years, luminescent nanocrystals of rare-earth (RE) metals attract a great deal of attention because of their potential applications for displays, 16 17 solid state lasers, 18 optical telecommunication, 19 optical amplifiers [20][21][22] and biolabeling.…”

Section: Introductionmentioning

confidence: 99%

Facile Room Temperature Synthesis of Lanthanum Oxalate Nanorods and Their Interaction with Antioxidative Naphthalimide Derivative

Chall¹,

Pramanik²,

Dhar³

et al. 2012

j nanosci nanotechnol

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Polycrystalline lanthanum oxalate (LaOX) nanorods (NRs) were succesfully synthesized using reverse micellar (RM) method. The study espouses the versatility of the reverse micellar method forming monodisperse, stable nanorods at room temperature. The as-synthesized LaOX nanorods were characterised by different techniques. Result shows that the nanorods of LaOX with aspect ratio 10.2:1 have preferred growth direction of (020). The pure phase synthesis of the nanorods was confirmed from Fourier transformed infrared (FTIR) and X-ray diffraction (XRD) analysis. The thermo gravimetric analysis (TGA) and differential thermal analysis (DTA) of the as-synthesized nanorods were perfomed to observe their thermal degradation. Synthesized nanorods are fluorescent having emission maximum at 329 nm. Fluorescence resonance energy transfer (FRET) phenomenon has been observed between LaOX nanorods (energy donor) and naphthalimide (NAP) derivative (energy acceptor) and this mechanism can be helpful for sensing of NAP or NAP like molecules used as antioxidative in living systems.

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Towards controllable optical properties of silicon based nanoparticles for applications in opto-electronics

Cited by 16 publications

References 28 publications

Biomedical and Sensor Applications of Silicon Nanoparticles

Biomedical and Sensor Applications of Silicon Nanoparticles

IR multiple-photon excitation of polyatomic molecules: a route towards nanostructures

Facile Room Temperature Synthesis of Lanthanum Oxalate Nanorods and Their Interaction with Antioxidative Naphthalimide Derivative

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