Search for dissertations about: "two-dimensional surface optical reflectance"

Found 3 swedish dissertations containing the words two-dimensional surface optical reflectance.

  2. 1. Optical Efficiency of Low-Concentrating Solar Energy Systems with Parabolic Reflectors

    Author : Maria Brogren; Arne Roos; Björn Karlsson; Andreas Häberle; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Photovoltaic cells; Photovoltaic-thermal systems; Parabolic reflectors; Optical properties; Reflector materials; Optical efficiency; Accelerated ageing; Outdoor ageing; Building-integrated photovoltaics; Teknisk fysik; Engineering physics; Teknisk fysik;

    Abstract : Solar electricity is a promising energy technology for the future, and by using reflectors for concentrating solar radiation onto photovoltaic cells, the cost per produced kWh can be significantly reduced. The optical efficiency of a concentrating system determines the fraction of the incident energy that is transferred to the cells and depends on the optical properties of the system components. READ MORE

  4. 2. Ordered arrays of low-dimensional Au and Pd : synthesis and in situ observations

    Author : Giuseppe Abbondanza; NanoLund: Centre for Nanoscience; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; nanowires NWs ; nanorods; nanoparticles; Au; Pd; Al; Al2O3; anodization; nano-porous anodic aluminum oxide; powder diffraction; x-ray diffraction; x-ray scattering; SAXS; WAXS; grazing-incidence; two-dimensional surface optical reflectance;

    Abstract : Electrodeposition of metals in templates of nano-porous anodic aluminum oxide (NP-AAO) is a versatile way of fabricating ordered arrays of metal nanowires. Thanks to the self-arranged long-range hexagonal order of the pores, electrodeposition in NP-AAO is an easily scalable bottom-up synthesis route and an attractive alternative to traditional top-down fabrication methods such as electron beam lithography. READ MORE

  5. 3. Development of combined operando diagnostics : Applications in heterogeneous catalysis and electrochemistry

    Author : Lisa Rämisch; Förbränningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : With the aim to bridge the pressure gap between traditional surface science and industrial applications, heterogeneous catalytic reactions on model catalysts are increasingly studied at near-ambient pressures. Under those conditions, the gas phase has been shown to play an important role during the interaction at the gas-surface interface making it complex to study. READ MORE