A model of size‐dependent photoluminescence in amorphous silicon nanostructures: Comparison with observations of porous silicon

1996 ◽  
Vol 68 (13) ◽  
pp. 1814-1816 ◽  
Author(s):  
M. J. Estes ◽  
G. Moddel
Keyword(s):  
Porous Silicon ◽  
Amorphous Silicon ◽  
Silicon Nanostructures ◽  
Size Dependent

scholarly journals Micro-Raman Scattering of Nanoscale Silicon in Amorphous and Porous Silicon

2017 ◽  
Vol 231 (9) ◽  
Author(s):  
Sangeetha Periasamy ◽  
Sasirekha Venkidusamy ◽  
Ragavendran Venkatesan ◽  
Jeyanthinath Mayandi ◽  
Joshua Pearce ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Chemical Vapor Deposition ◽  
Porous Silicon ◽  
Amorphous Silicon ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Silicon Nanostructures ◽  
Micro Raman Spectroscopy ◽  
Nanostructured Silicon ◽  
Quartz Substrates

Abstract:The size effect of nanoscale silicon in both amorphous and porous silicon was investigated with micro-Raman spectroscopy. Silicon nanostructures in amorphous silicon were deposited on quartz substrates by plasma enhanced chemical vapor deposition (PECVD) with deposition powers of 15, 30 and 50 W. Micro-Raman spectra of the nanostructured silicon show the T

Structural Studies, Surface Properties, and Photoluminescence Behaviour of Silicon Nanocrystals

1991 ◽  
Vol 256 ◽  
Author(s):  
J. R. Heath ◽  
J. M. Jasinski
Keyword(s):  
Porous Silicon ◽  
Amorphous Silicon ◽  
Surface Properties ◽  
Silicon Nanocrystals ◽  
Silicon Nanoparticles ◽  
Excitation Frequency ◽  
Wavelength Dependence ◽  
Structural Studies ◽  
Size Dependent ◽  
Amorphous Silicon Nanoparticles

ABSTRACTA method for synthesizing crystalline and/or amorphous silicon nanoparticles (3 – 30 nm diameter) is discussed. The photoluminescence (PL) behaviour of these particles is studied as crystallinity, size, surface stoichiometry, and excitation frequency are varied. Orange-red photoluminescence (PL), similar to that reported for “porous silicon,” is observed. The wavelength dependence of this PL is not a function of size, but rather particle crystallinity. A separate PL feature, near 430 nm, is reported. No size dependent effects are observed for this feature.

Noise mediated regularity of porous silicon nanostructures

2009 ◽  
Vol 94 (13) ◽  
pp. 133103 ◽  
Author(s):  
J. Escorcia-Garcia ◽  
V. Agarwal ◽  
P. Parmananda
Keyword(s):  
Porous Silicon ◽  
Silicon Nanostructures

Microwave Effects on Chemical Functionalization of Hydrogen-Terminated Porous Silicon Nanostructures

2008 ◽  
Vol 112 (42) ◽  
pp. 16622-16628 ◽  
Author(s):  
Alain Petit ◽  
Michel Delmotte ◽  
André Loupy ◽  
Jean-Noël Chazalviel ◽  
François Ozanam ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Silicon Nanostructures ◽  
Chemical Functionalization ◽  
Microwave Effects

Size-Dependent Assessment of Fe3O4-Nanoparticles Loaded into Porous Silicon

2013 ◽  
Vol 50 (37) ◽  
pp. 77-82 ◽  
Author(s):  
P. Granitzer ◽  
K. Rumpf ◽  
Y. Tian ◽  
G. Akkaraju ◽  
J. L. Coffer ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Fe3o4 Nanoparticles ◽  
Size Dependent

Electroluminescence and Photoluminescence Properties of Porous Silicon Nanostructures with Optimum Current Density of Photo-Electrochemical Anodisation

2013 ◽  
Vol 667 ◽  
pp. 180-185
Author(s):  
M. Ain Zubaidah ◽  
F.S. Husairi ◽  
S.F.M. Yusop ◽  
Noor Asli Asnida ◽  
Mohamad Rusop ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Volume Ratio ◽  
Boron Doping ◽  
Peak Position ◽  
Silicon Nanostructures ◽  
Etching Time ◽  
Photoluminescence Properties ◽  
Current Densities ◽  
Pl Spectrum ◽  
P Type

P-type silicon wafer ( orientation; boron doping; 0.75 ~ 10 Ω cm-1) was used to prepare samples of porous silicon nanostructures (PSiNs). All samples have been prepared by using photo-electrochemical anodisation. A fixed etching time of 30 minutes and volume ratio of electrolyte, hydrofluoric acid 48% (HF48%) and absolute ethanol (C2H5OH), 1:1 were used for various current densities, J. There were sample A (J=10 mA/cm2), sample B (J=20 mA/cm2), sample C (J=30 mA/cm2), sample D (J=40 mA/cm2) and sample E (J=50 mA/cm2). Photoluminescence (PL) and electroluminescence (EL) spectra were investigated. Maximum peak position of PL spectrum at about ~675 nm, while the maximum EL spectrum at about ~650 nm (which is similar to the PL spectrum).

Prolonged controlled delivery of nerve growth factor using porous silicon nanostructures

2017 ◽  
Vol 257 ◽  
pp. 51-59 ◽  
Author(s):  
Neta Zilony ◽  
Michal Rosenberg ◽  
Liran Holtzman ◽  
Hadas Schori ◽  
Orit Shefi ◽  
...  
Keyword(s):  
Nerve Growth Factor ◽  
Growth Factor ◽  
Porous Silicon ◽  
Controlled Delivery ◽  
Silicon Nanostructures ◽  
Nerve Growth
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