Sökning: "cathodoluminescence"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet cathodoluminescence.

1. 1. U-Pb datering av zirkon från migmatitisk gnejs i Delsjöområdet, Idefjordenterrängen

   Kandidat-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Mimmi Ingered; [2017]
   Nyckelord :Svekonorvegiska orogenesen; Idefjordenterrängen; U-Pb; Migmatit; Zirkon; LA-ICP-MS; Earth and Environmental Sciences;

   Sammanfattning : Under den Svekonorvegiska orogenesen omkristalliserade stora delar av sydvästra Sverige och bildade metamorfa migmatitiska gnejser. I Idefjordenterrängen, väster om Mylonitzonen, har migmatiterna inte daterats och då kunskapen om de metamorfa processerna i området brister kan migmatiterna ge en bättre bild av när metamorfosen skedde. LÄS MER

3. 2. Study of the Optical Properties of sp2-Hybridized Boron Nitride

   Master-uppsats, Linköpings universitet/Tillämpad optik

   Författare :Eduardo Antunez de Mayolo; [2014]
   Nyckelord :Spectroscopic ellipsometry; boron nitride; optical properties; materials characterization; III-V nitride semiconductors; cathodoluminescence; electron microscopy; Raman spectroscopy;

   Sammanfattning : Nitride-based semiconductor materials make it possible to fabricate optoelectronic devices that operate in the whole electromagnetic range, since the band gaps of these compounds can be modified by doping. Among these materials, the sp2-hybridized boron nitride has properties that make it a potential candidate for integration in devices operating in the short-wavelength limit, under harsh environment conditions, due to the strength of the B-N bond. LÄS MER

4. 3. Surface Optimization of the Silicon Templates for Monolithic Photonics Integration

   Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Författare :Chen Hu; [2011]
   Nyckelord :Chemical mechanical polishing; epitaxial lateral growth; surface optimization; roughness; surface morphology; step height; surface topography.;

   Sammanfattning : Silicon photonics is emerging as a potential field to achieve optical interconnects towards the realization of ultra high bandwidth. The indirect band-gap property of silicon still remains as a big challenge to incorporate silicon photonic active device, for example, silicon-based laser. LÄS MER

5. 4. Probing the Toba super-eruption: Insights from oxygen isotope geochemistry and geobarometry

   Master-uppsats, Berggrundsgeologi

   Författare :David Budd; [2011]
   Nyckelord :super-eruption; oxygen isotopes; geobarometry; Toba; magmatic plumbing; caldera;

   Sammanfattning : The Toba caldera located in north Sumatra, Indonesia, is the source of the largest volcanic eruption in the Quaternary (Rose & Chesner 1987). Its enormous volume of 2800 km3 has been a matter of debate for decades and it is still unclear where and how the Toba magma was assembled. LÄS MER

7. 5. Research on the Best Market Applications for LightLab Energy-Saving Lamps

   Master-uppsats, Energisystem

   Författare :Raul Vilalta Cea; [2010]
   Nyckelord :Research; Market; Applications; LightLab; Lightlab; Energy; Saving; Lamps; Lamp; Lighting; Environment; Sweden; Light; Mercury; Free; Field; Emission; Cathodoluminescence; LightLab; katodluminiscens; fältemission; ljusteknologi; lampa;

   Sammanfattning : Nowadays, lighting represents 20% of the global electricity consumption. Light can be produced using different technologies but more than 100 years after its invention, the incandescent bulb is still the most sold and one of the more used light sources. LÄS MER