Browsing Scientific Published Papers by Author "Roschuk, T."

Now showing items 1-9 of 9

A Comparison of the Effects of Silicon Oxide and Silicon Nitride Host Matrices on the Photoluminescence from Si Nanocrystals after High Temperature Annealing

Roschuk, T.; Zalloum, O. H. Y.; Wojcik, J.; Zhang, H.; Mascher, P. (2007)

Si nanoclusters embedded in two different dielectric matrices, silicon oxide and silicon nitride, have been formed through annealing of Si-rich silicon oxide (SRSO) and Si-rich silicon nitride (SRSN) thin films. The ...
The Effects of Deposition and Processing Parameters on the Electronic Structure and Photoluminescence from Nitride-Passivated Silicon Nanoclusters

Wilson, P. R. J.; Roschuk, T.; Zalloum, O. H. Y.; Wojcik, J.; Mascher, P. (2008)

Silicon nanoclusters (Si-ncs) exhibit unique optical properties as a result of quantum confinement effects. In particular, efficient luminescence from Si-ncs has driven research aimed at understanding the behaviour of ...
Laser photoluminescence spectrometer based on charge-coupled device detection for silicon-based photonics

Zalloum, O. H. Y.; Flynn, M.; Roschuk, T.; Wojcik, J.; Irving, E.; Mascher, P. (2006-01-24)

We describe and characterize a multichannel modular room temperature photoluminescence spectroscopy system. This low cost instrument offers minimization of size and complexity as well as good flexibility and acceptable ...
Light Emission from Rare-Earth Doped Silicon Nanostructures

Li, J.; Zalloum, O. H. Y.; Roschuk, T.; Heng, C. L.; Wojcik, J.; Mascher, P. (Hindawi Publishing Corporation, 2008-03-27)

Rare earth (Tb or Ce)-doped silicon oxides were deposited by electron cyclotron resonance plasma-enhanced chemical vapour deposition (ECR-PECVD). Silicon nanocrystals (Si-ncs) were formed in the silicon-rich films during ...
Light emission from Si nanoclusters formed at low temperatures

Pi, X. D.; Zalloum, O. H. Y.; Roschuk, T.; Wojcik, J.; Knights, A. P.; Mascher, P. (2006-03-08)

Photoluminescence (PL) from amorphous Si nanoclusters (Si-ncls) formed by thin-film deposition via electron-cyclotron resonance plasma-enhanced chemical vapor deposition followed by annealing at temperatures ⩽875°C has ...
On the effects of double-step anneal treatments on light emission from Er-doped Si-rich silicon oxide

Heng, C. L.; Zalloum, O. H. Y.; Wojcik, J.; Roschuk, T.; Mascherb, P. (JOURNAL OF APPLIED PHYSICS, 2008-01-25)

We have studied photoluminescence (PL) from an Er-doped Si-rich Si oxide (SRSO) film thermally annealed under different conditions. Compared to the case of annealing in N2 alone, double-step annealing the film at 875°C in ...
Photoluminescence Study of an Er-Doped Si-Rich SiOx Film Effects of Annealing Gas Ambients and Double-Step Processes

Heng, C. L.; Zalloum, O. H. Y.; Roschuk, T.; Blakie, D.; Wojcik, J.; Mascher, P. (Electrochemical and Solid-State Letters,, 2007-05-02)

We have studied photoluminescence PL from samples of Er-doped Si-rich silicon oxide SRSO annealed at 875°C for 1 h in N2, N2 + 5% H2 FG1, Ar + 5% H2 FG2, and O2, respectively, or subjected to double-step annealing processes. ...
Structure and luminescence of rare earth-doped silicon oxides studied through their X-ray absorption near edge structure and X-ray excited optical luminescence

Roschuk, T.; Wilson, P. R. J.; Li, J.; Zalloum, O. H. Y.; Wojcik, J.; Mascher, P. (Wiley-VCH, 2009-12-15)

The X-ray absorption near edge structure (XANES) and X-ray excited optical luminescence (XEOL) of a set of photoluminescent rare earth (RE) (Tb, Ce) doped silicon oxide (SiOx) thin films, having compositions ranging from ...
X-ray-diffraction study of crystalline Si nanocluster formation in annealed silicon-rich silicon oxides

Comedi, D.; Zalloum, O. H. Y.; Irving, E. A.; Wojcik, J.; Roschuk, T.; Flynn, M. J.; Mascher, P. (2006-01-25)

The formation and subsequent growth of crystalline silicon nanoclusters (Si-ncs) in annealed silicon-rich silicon oxides (SRSOs) were studied by glancing angle x-ray diffraction. SRSO samples with Si concentrations (𝑦) ...

Browsing Scientific Published Papers by Author "Roschuk, T."

Browsing Scientific Published Papers by Author "Roschuk, T."

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