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Journal ArticleDOI

Silicon quantum wire array fabrication by electrochemical and chemical dissolution of wafers

Leigh T. Canham
- 03 Sep 1990 - 
- Vol. 57, Iss: 10, pp 1046-1048
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.

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Citations
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Macroporous p-Type Silicon Fabry−Perot Layers. Fabrication, Characterization, and Applications in Biosensing

TL;DR: In this paper, the structure and porosity of porous silicon matrixes were characterized by scanning force microscopy and scanning electron microscopy (SEM), Brunnauer−Emmett−Teller nitrogen adsorption isotherms, and reflectance interference spectroscopy.
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Visible photoluminescence in Si+‐implanted silica glass

TL;DR: In this paper, the authors investigated visible photoluminescence excited by an Ar-ion laser (488 nm, 2.54 eV) at room temperature from Si+implanted silica glass, as-implanted and after subsequent annealing in vacuum.
Journal ArticleDOI

Nanostructured ceramics by electrospinning

TL;DR: In this paper, a review of the various ceramic nanofiber systems that have been fabricated so far is presented, and the physical and chemical properties enhancements due to the nanosize have been discussed in detail and the various applications they fi...
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Sensors and imaging for wound healing: a review.

TL;DR: A review of the state-of-the-art in detection of markers associated with wound healing and infection, utilizing devices imbedded within dressings or as point of care techniques to allow for continual or rapid wound assessment and monitoring is presented in this article.
Journal ArticleDOI

Optical interconnects to silicon

TL;DR: A brief historical summary of the development of the field of optical interconnects to silicon integrated circuits can be found in this paper, where the authors describe the evolution from early optical switching phenomena, through novel semiconductor and quantum well optical and optoelectronic physics and devices, to hybrid integrations of optical and silicon circuits.
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.
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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.
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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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