Luminescence of porous silicon derived nanocrystals dispersed in water: dependence on initial porous silicon oxidation

Froner, E.; Adamo, Roberta; Gaburro, Z.; Margesin, B.; Pavesi, L.; Rigo, Adelio; Scarpa, Marina

doi:10.1007/s11051-005-9050-9

Cited by 22 publications

(17 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fig. 3 (right) shows a typical example of the emission from a colloidal suspension of Si-nc in toluene: when these are illuminated by blue light they emit intense red light at room temperature with a typical quantum efficiency of a few per cent [74].…”

Section: Nanosilicon Fundamentalsmentioning

confidence: 99%

“…The choice among these depends on the particular application one is interested in. Bottom-up approaches rely on the direct chemical synthesis of Si-nc by chemical reactions of suitable precursors [74,79]. Since the precursors are usually in a liquid phase, these methods are mostly suitable for bioapplications.…”

Section: Nanosilicon Fabricationmentioning

confidence: 99%

“…(right) Emission of a cuvette filled with a colloidal suspension of Si-nc in toluene under UV illumination[74].www.lpr-journal.org…”

mentioning

confidence: 99%

See 2 more Smart Citations

Nanosilicon photonics

Daldosso¹,

Pavesi

2009

Laser & Photonics Reviews

162

105

View full text Add to dashboard Cite

Silicon photonics is no longer an emerging field of research and technology but a present reality with commercial products available on the market, where low-dimensional silicon (nanosilicon or nano-Si) can play a fundamental role. After a brief history of the field, the optical properties of silicon reduced to nanometric dimensions are introduced. The use of nano-Si, in the form of Si nanocrystals, in the main building blocks of silicon photonics (waveguides, modulators, sources and detectors) is reviewed and discussed. Recent advances of nano-Si devices such as waveguides, optical resonators (linear, rings, and disks) are treated. Emphasis is placed on the visible optical gain properties of nano-Si and to the sensitization effect on Er ions to achieve infrared light amplification. The possibility of electrical injection in light-emitting diodes is presented as well as the recent attempts to exploit nano-Si for solar cells. In addition, nonlinear optical effects that will enable fast all-optical switches are described.

show abstract

Section: Nanosilicon Fundamentalsmentioning

confidence: 99%

Section: Nanosilicon Fabricationmentioning

confidence: 99%

See 1 more Smart Citation

Nanosilicon photonics

Daldosso¹,

Pavesi

2009

Laser & Photonics Reviews

162

105

View full text Add to dashboard Cite

show abstract

“…However a successful application of silicon nanocrystals (Si-nc) to bio-investigation requires some sort of ''interfacing'', since we must be able to tune the characteristics of Si-nc, particularly its emission properties, to the biological environment: Si-nc should absorb and emit at the desired wavelength, be brightly luminescent and tolerate contacts with water and oxygen in the experimental time-scale which, for cell studies, is in the range of a few days (Si-nc and pSi are well known to undergo fast oxidation by water and oxygen, which affects their emission wavelength and intensity [2,3]). Lastly, for cell and in vivo applications, Si-nc must be targeted to specific action sites.…”

Section: Introductionmentioning

confidence: 99%

Deoxycholate as an efficient coating agent for hydrophilic silicon nanocrystals

Froner

D’Amato

Adamo

et al. 2011

Journal of Colloid and Interface Science

Self Cite

View full text Add to dashboard Cite

“…Recently, Si nanoparticles have been extensively studied for their potential applications in luminescent devices and in vivo biomarkers [4][5][6][7][8] . However, porous Si, when used as an in vivo biomarker, has several problems resulting from its surface Si-H bonds.…”

Section: Introductionmentioning

confidence: 99%

Luminescence Property of Water Dispersed Porous Si Terminated by Organic Molecules

Kamiguchi

Sakakibara

Matsumoto

et al. 2016

Trans. Mat. Res. Soc. Japan

View full text Add to dashboard Cite

The optical properties of porous Si terminated by various hydrophilic organic molecules were investigated to clarify the influence of the molecular length on the optical properties. In the case of porous Si terminated with hydrophilic organic molecules, surface oxidation of porous Si was restrained and the photoluminescence (PL) properties were more stable than those of the as-prepared sample. The PL of porous Si terminated with organic molecules was caused by the quantum size effect, which was confirmed on the basis of measured PL decay curves. The molecular length of the surface-terminated molecules did not affect the PL properties. Therefore, surface termination with hydrophilic organic molecules is an effective method to improve the stability of the optical properties of porous Si.

show abstract

Luminescence of porous silicon derived nanocrystals dispersed in water: dependence on initial porous silicon oxidation

Cited by 22 publications

References 17 publications

Nanosilicon photonics

Nanosilicon photonics

Deoxycholate as an efficient coating agent for hydrophilic silicon nanocrystals

Luminescence Property of Water Dispersed Porous Si Terminated by Organic Molecules

Contact Info

Product

Resources

About