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
More filters
Journal ArticleDOI
Synthesis and characterization of manganese-doped silicon nanoparticles: bifunctional paramagnetic-optical nanomaterial.
Xiaoming Zhang,Marcin Brynda,R. David Britt,Elizabeth C. Carroll,Delmar S. Larsen,and Angelique Y. Louie,Susan M. Kauzlarich +6 more
TL;DR: Mn doped Si nanoparticles have been synthesized via a low-temperature solution route and characterized by X-ray powder diffraction, transmission electron microscopy, optical and emission spectroscopy, and by electron paramagnetic resonance (EPR).
Journal ArticleDOI
Porous silicon: A novel material for microsystems
TL;DR: In this paper, the etching process and morphology of porous silicon are described, and possible applications are discussed in microstructuring, sensorics, microelectronics and microoptics.
Journal ArticleDOI
ZnSe–Si Bi‐coaxial Nanowire Heterostructures
TL;DR: In this paper, the fabrication, structural characterization, and luminescence properties of ZnSe/Si bi-coaxial nanowire heterostructures are reported.
Journal ArticleDOI
The optical properties of ZnO films grown on porous Si templates
Y.L. Liu,Y.C. Liu,Y.C. Liu,Haibin Yang,Wenbo Wang,J G Ma,J.Y. Zhang,Y.M. Lu,D.Z. Shen,X.W. Fan +9 more
TL;DR: In this article, the photoluminescence spectra of the samples before and after deposition of ZnO were measured to study the effect of template porosity on the luminescence properties of the composite.
Journal ArticleDOI
Defect-enhanced visible electroluminescence of multi-energy silicon-implanted silicon dioxide film
Chun-Jung Lin,Gong-Ru Lin +1 more
TL;DR: In this paper, a multirecipe Si-ion-implanted SiO/sub 2/ (SiO/Sub 2/:Si/sup +/) film on Si substrate is demonstrated.
References
More filters
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.
Related Papers (5)
The structural and luminescence properties of porous silicon
Visible light emission due to quantum size effects in highly porous crystalline silicon
A. G. Cullis,Leigh T. Canham +1 more