Journal ArticleDOI
Silicon quantum wire array fabrication by electrochemical and chemical dissolution of wafers
TLDR
In this paper, free standing Si quantum wires can be fabricated without the use of epitaxial deposition or lithography using electrochemical and chemical dissolution steps to define networks of isolated wires out of bulk wafers.Abstract:
Indirect evidence is presented that free‐standing Si quantum wires can be fabricated without the use of epitaxial deposition or lithography. The novel approach uses electrochemical and chemical dissolution steps to define networks of isolated wires out of bulk wafers. Mesoporous Si layers of high porosity exhibit visible (red) photoluminescence at room temperature, observable with the naked eye under <1 mW unfocused (<0.1 W cm−2) green or blue laser line excitation. This is attributed to dramatic two‐dimensional quantum size effects which can produce emission far above the band gap of bulk crystalline Si.read more
Citations
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Journal ArticleDOI
Laser-Processed Nanosilicon: A Multifunctional Nanomaterial for Energy and Healthcare.
Andrei V. Kabashin,Andrei V. Kabashin,Ajay Singh,Mark T. Swihart,Irina N. Zavestovskaya,Paras N. Prasad,Paras N. Prasad +6 more
TL;DR: This review describes promising laser-based approaches to produce silicon nanostructures, including laser ablation of solid Si targets in residual gases and liquids and laser pyrolysis of silane, which are suitable for a multitude of applications across the important fields of energy and health care.
Journal ArticleDOI
Electroluminescence of silicon nanocrystallites prepared by pulsed laser ablation in reduced pressure inert gas
TL;DR: In this paper, an electroluminescent (EL) diode with active layers of silicon (Si) nanocrystallites was constructed by pulsed laser ablation in an ambient of reduced pressure inert gas.
Journal ArticleDOI
A new electrochemical sensor for the simultaneous determination of acetaminophen and codeine based on porous silicon/palladium nanostructure
TL;DR: A porous silicon/palladium nanostructure was prepared and used as a new electrode material for the simultaneous determination of acetaminophen (ACT) and codeine (COD) and the proposed method was used for the determination of ACT and COD in blood serum, urine and pharmaceutical compounds.
Patent
Laterally disposed nanostructures of silicon on an insulating substrate
Stephen D. Russell,Robert C. Dynes,Paul R. de la Houssaye,Wadad B. Dubbelday,Randy L. Shimabukuro,Andrew S. Katz +5 more
TL;DR: In this paper, a single crystal silicon film nanostructure capable of optical emission is laterally disposed on an insulating transparent substrate of sapphire, and the photoresist is developed and the e-beam written pattern is transferred to the silicon by etching.
Journal ArticleDOI
From Carbon Nanostructures to New Photoluminescence Sources: An Overview of New Perspectives and Emerging Applications of Low‐Pressure PECVD
TL;DR: In this article, the authors give an overview of some new research areas where PECVD is finding promising applications, such as biomedical applications, solar cells, fuel cell development, fusion research, or the synthesis of silicon nanocrystals showing efficient photoluminescence.
References
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Journal ArticleDOI
Electrolytic shaping of germanium and silicon
TL;DR: In this article, the properties of electrolyte-semiconductor barriers are described, with emphasis on germanium, and the use of these barriers in localizing electrolytic etching is discussed.
Journal ArticleDOI
Unusually low surface-recombination velocity on silicon and germanium surfaces.
TL;DR: It is found that a standard, widespread, chemical-preparation method for silicon, oxidation followed by an HF etch, results in a surface which from an electronic point of view is remarkably inactive, which has implications for the ultimate efficiency of silicon solar cells.
Journal ArticleDOI
Infrared spectroscopy of Si(111) and Si(100) surfaces after HF treatment: Hydrogen termination and surface morphology
TL;DR: In this paper, multiple internal infrared reflection spectroscopy has been used to identify the chemical nature of chemically oxidized and subsequently HF stripped silicon surfaces, and these very inert surfaces are found to be almost completely covered by atomic hydrogen.
Journal ArticleDOI
Hydrogen desorption kinetics from monohydride and dihydride species on silicon surfaces.
TL;DR: In this article, the authors measured hydrogen desorption from monohydride and dihydride species on crystalline-silicon surfaces using transmission Fourier-transform infrared (FTIR) spectroscopy.
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