Solid-immersion photoluminescence imaging and spectroscopy with high-spatial resolution on GaAs nanostructures

2003 ◽  
Author(s):  
M. Yoshita ◽  
M. Baba ◽  
H. Akiyama
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Imaging And Spectroscopy

High Spatial Resolution Tem Study of Thin Film Metal/6H-Sic Interfaces

1992 ◽  
Vol 280 ◽  
Author(s):  
J. S. Bow ◽  
L. M. Porter ◽  
M. J. Kim ◽  
R. W. Carpenter ◽  
R. F. Davis
Keyword(s):  
Thin Film ◽  
Spatial Resolution ◽  
Reaction Zone ◽  
Room Temperature ◽  
Annealing Temperature ◽  
High Spatial Resolution ◽  
New Product ◽  
Amorphous Layer ◽  
Imaging And Spectroscopy ◽  
Two Phases

ABSTRACTThin films of titanium, platinum, and hafnium were deposited on single crystal n-type, (0001) 6H-SiC at room temperature in UHV. Microstructure and chemistry of their interfaces were analyzed by high spatial resolution TEM imaging and spectroscopy. Ti5Si3 and TiC were the two phases found in the reaction zone of Ti/SiC specimens annealed at 700°C. A carbon-containing amorphous layer formed between Pt and SiC when the annealing temperature went up to 750°C. There was no apparent reaction zone in Hf/SiC specimens annealed at 700°C for 60 min‥ The change of electrical properties of metal/6H-SiC devices was attributed to these new product phases.

Application of Cathodoluminescence Microscopy and Spectroscopy in Geosciences

2012 ◽  
Vol 18 (6) ◽  
pp. 1270-1284 ◽  
Author(s):  
Jens Götze
Keyword(s):  
Trace Elements ◽  
Present Article ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Analytical Techniques ◽  
High Sensitivity ◽  
Mineral Formation ◽  
Accessory Minerals ◽  
Internal Structures ◽  
Imaging And Spectroscopy

AbstractCathodoluminescence (CL) microscopy and spectroscopy are luminescence techniques with widespread applications in geosciences. Many rock-forming and accessory minerals show CL characteristics, which can be successfully used in geoscientific research. One of the most spectacular applications is the visualization of growth textures and other internal structures that are not discernable with other analytical techniques. In addition, information from CL imaging and spectroscopy can be used for the reconstruction of processes of mineral formation and alteration to provide information about the real structure of minerals and materials, and to prove the presence and type of lattice incorporation of several trace elements. In the present article, an overview about CL properties of selected minerals is given, and several examples of applications discussed. The presented data illustrate that best results are achieved when luminescence studies are performed under standardized conditions and combined with other analytical techniques with high sensitivity and high spatial resolution.

High spatial resolution AEM observations of yttrium segregation in chromia scales grown on Co-45%Cr

1986 ◽  
Vol 44 ◽  
pp. 518-519
Author(s):  
K. Przybylski ◽  
A. J. Garratt-Reed ◽  
G. J. Yurek
Keyword(s):  
Spatial Resolution ◽  
Outer Surface ◽  
Maximum Concentration ◽  
High Spatial Resolution ◽  
Reactive Elements ◽  
Chromia Scales

The addition of so-called “reactive” elements such as yttrium to alloys is known to enhance the protective nature of Cr2O3 or Al2O3 scales. However, the mechanism by which this enhancement is achieved remains unclear. An A.E.M. study has been performed of scales grown at 1000°C for 25 hr. in pure O2 on Co-45%Cr implanted at 70 keV with 2x1016 atoms/cm2 of yttrium. In the unoxidized alloys it was calculated that the maximum concentration of Y was 13.9 wt% at a depth of about 17 nm. SIMS results showed that in the scale the yttrium remained near the outer surface.

Integration of Core-Edge Spectroscopy Methods for the Study of Polymers

1996 ◽  
Vol 54 ◽  
pp. 154-155
Author(s):  
E. G. Rightor
Keyword(s):  
Excited State ◽  
Polymer Blends ◽  
Gas Phase ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Electronic States ◽  
Core Electron ◽  
Bulk Solids ◽  
Development Application

Core edge spectroscopy methods are versatile tools for investigating a wide variety of materials. They can be used to probe the electronic states of materials in bulk solids, on surfaces, or in the gas phase. This family of methods involves promoting an inner shell (core) electron to an excited state and recording either the primary excitation or secondary decay of the excited state. The techniques are complimentary and have different strengths and limitations for studying challenging aspects of materials. The need to identify components in polymers or polymer blends at high spatial resolution has driven development, application, and integration of results from several of these methods.

Color Hologram Generation Using High Spatial Resolution Camera

2013 ◽  
Vol 67 (3) ◽  
pp. J108-J115
Author(s):  
Kosuke Nomura ◽  
Ryutaro Oi ◽  
Takanori Senoh ◽  
Taiichiro Kurita ◽  
Takayuki Hamamoto
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution
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