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Showing 31-40 of 82

Transmission electron microscope study of symmetry-related transitions in cubic Y2O3:Tb3+

Publication
Society for Information Display (SID)
den Engelsen, D.; Fern, G. R.; Ireland, T. G.; Harris, P. G.; Silver, J.

In this paper, we describe measurements of the cathodoluminescence of nanosized cubic Y2O3:Tb3+ with a transmission electron microscope. From the CL-spectra we determined the energy flow from excited Tb3+ in a S6 lattice site to Tb3+ in a C2 site.
Nanocathodoluminescence reveals mitigation of the stark shift in InGaN quantum wells by Si doping

Publication
Nano Letters
Griffiths, J. T.; Zhang, S.; Rouet-Leduc, B.; Fu, W. Y.; Bao, A.; Zhu, D.; Wallis, D. J.; Howkins, A.; Boyd, I.; Stowe, D.; Kappers, M. J.; Humphreys; C.J.; Oliver, R. A.

Nanocathodoluminescence reveals the spectral properties of individual InGaN quantum wells in high efficiency light emitting diodes. We observe a variation in the emission wavelength of each quantum well, in correlation with the Si dopant concentration in the quantum barriers.
Resonances of nanoparticles with poor plasmonic metal tips

Publication
Scientific Reports
Ringe, E.; DeSantis, C. J.; Collins, S. M.; Duchamp, M.; Dunin-Borkowski, R. E.; Skrabalak, S. E.; Midgley, P. A.

The catalytic and optical properties of metal nanoparticles can be combined to create platforms for light-driven chemical energy storage and enhanced in-situ reaction monitoring. However, the heavily damped plasmon resonances of many catalytically active metals (e.g.
Fractographic approach to metallurgical coke failure analysis. Part 1: Cokes of single coal origin

Publication
Fuel
Roest, R.; Lomas, H.; Hockings, K.; Mahoney, M. R.

Metallurgical coke is a complex brittle heterogeneous material consisting of carbon derived from fusible, semi-fusible and inert coal particles that forms a porous composite matrix.
Structural and luminescence effects of Ga co-doping on Ce-doped yttrium aluminate based phosphors

Publication
Journal of Alloys and Compounds
Ayvacikli, A.; Canimoglu, A.; Muresan, L. E.; Tudoran, L. B.; Guinea, J. G.; Karabulut, Y.; Jorge, A.; Karali, T.; Can, N.

Herein, we primarily focus on luminescence spectrum measurements of various types of green emitting yttrium aluminate phosphors modified with gallium (Y3Al5-xGaxO12) synthesised by solid state reaction.
Green emitting cubic GaInN/GaN quantum well stripes on micropatterned Si(001) and their strain analysis

Publication
Advanced Electronic Materials
Durniak, M. T.; Bross, A. S.; Elsaesser, D.; Chaudhuri, A.; Smith, M. L.; Allerman, A. A.; Lee, S. C.; Brueck, S. R. J.; Wetzel, C.

GaInN/GaN heterostructures in the cubic lattice variant have the potential to overcome the limitations of wurtzite structures as commonly used for light emitting and laser diodes.
Harnessing the cancer radiation therapy by lanthanide-doped zinc oxide-based theranostic nanoparticles

Publication
Applied Materials & Interfaces
Ghaemi, B.; Mashinchian, O.; Mousavi, T.; Karimi, R.; Kharrazi, S.; Amani, A.

In this paper, a significant cell death using novel X-Ray sensitive Gadolinium and Europium doped Zinc Oxide Nanoparticles (NPs) has been reported.
Nanocathodoluminescence reveals mitigation of the Stark shift in InGaN quantum wells by Si doping

Publication
Nano Letters
Griffiths, J. T.; Zhang, S.; Rouet-Leduc, B.; Fu, W. Y.; Bao, A.; Zhu, D.; Wallis, D. J.; Howkins, A.; Boyd, I.; Stowe, D.; Kappers, M. J.; Humphreys, C. J.; Oliver, R. A.

Nanocathodoluminescence reveals the spectral properties of individual InGaN quantum wells in high efficiency light emitting diodes. We observe a variation in the emission wavelength of each quantum well, in correlation with the Si dopant concentration in the quantum barriers.
Nanoscale optical and electrical characterizations of ZnO nanostructures by near-field microscopy

Publication
SPIE Proceedings
Teherani, F. H.; Look, D. C.; Rogers, D. J.

The interest in the recent years for nanostructure studies has led to the development of a wide palette of characterization techniques such as the electrical modes in scanning probe microscopy (STM, EFM, KPFM...).
Investigating the origin of luminescence in zinc oxide nanostructures with STEM-cathodoluminescence

Publication
Microscopy and Microanalysis
White, E. R.; Howkins, A.; Williams, C. K.; Shaffer, M. S. P.

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