Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Guy G. Ross"'
Publikováno v:
Journal of Nanoscience and Nanotechnology. 17:2196-2200
Autor:
Minghuan Zhang, David Barba, Yujuan Zhang, Guy G. Ross, Chao Wang, Yiqian Wang, Rongsheng Cai
Publikováno v:
Materials Characterization. 93:1-9
Ge nanocrystals (Ge-ncs) were produced by implantation of {sup 74}Ge{sup +} into a SiO{sub 2} film on (100) Si, followed by high-temperature annealing from 700 °C to 1100 °C. Transmission electron microscopy (TEM) studies show that the average size
Investigation of electrical and optical measurements of silicon nanocrystals embedded in SiO2 matrix
Publikováno v:
Journal of Materials Science: Materials in Electronics. 24:1837-1841
Samples containing silicon nanocrystals (Si-nc) with radius of approximately 3 nm embedded in SiO2 exhibit a strong PL emission around 750 nm because of the quantum confinement of the exciton inside the Si-nc. To characterize the contribution of abso
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 272:112-115
The photoluminescence (PL) spectra of silicon nanocrystals (Si-nc) produced by Si+ implantation in SiO2 are modulated by interference effects associated with the thickness of the SiO2 layer and the depth where the Si-nc are situated. A model based on
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 272:141-144
Silicon nanocrystals (Si-nc) can be synthesized into a silica matrix by ion implantation of silicon excess, followed by thermal annealing in N 2 or Ar atmosphere. In this work, ionoluminescence (IL) measurements have been performed on fused silica sa
Publikováno v:
Journal of Luminescence. 131:159-163
In this paper, we report on the design of two major components of a laser architecture using Si-nc embedded in SiO2 as the optical gain medium and sub-wavelength periodic structures to form the resonant cavity. Dimensions of the structures have been
Autor:
Guy G. Ross, Rachid Karmouch
Publikováno v:
Applied Surface Science. 257:665-669
Samples of wind turbine blade surface have been covered with a superhydrophobic coating made of silica nanoparticles embedded in commercial epoxy paint. The superhydrophobic surfaces have a water contact angle around 152°, a hysteresis less than 2°
Autor:
François Schiettekatte, David Barba, Julien Demarche, Mourad Yedji, Guy Terwagne, Dimitri Koshel, Guy G. Ross, François Martin, Martin Chicoine
Publikováno v:
Journal of Luminescence. 130:669-673
Implantations of pure 28Si+, 29Si+, and 30Si+ into SiO2 can provide significant insight into the formation of silicon nanocrystals (Si-nc) and their light emission properties. Si-nc produced with different fractions of the heavier Si isotopes have be
Autor:
Rachid Karmouch, Guy G. Ross
Publikováno v:
The Journal of Physical Chemistry C. 114:4063-4066
Measurements of the water contact angle as a function of temperature down to freezing gives valuable information for the development of anti-icing coatings. Advancing (ACA) and receding (RCA) contact angles were measured by depositing drops of water
Publikováno v:
Surface and Coatings Technology. 203:2501-2505
The injection of current in electroluminescent devices based on silicon nanocrystals (Si-nc) embedded in SiO 2 matrix is facilitated by the use of very thin SiO 2 layer. Therefore, the production of Si-nc by implantation of excess Si ions in the SiO