Search for dissertations about: "nano crystals"

Showing result 1 - 5 of 69 swedish dissertations containing the words nano crystals.

  2. 1. Photophysics of Perovskite Nano- and Microcrystals

    Author : Junsheng Chen; NanoLund: Centre for Nanoscience; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ultrafast spectroscopy; Two-photon absorption; Perovskite; Nanocrystals; Photostability; Lead free perovskite;

    Abstract : The demand and consumption of energy is increasing dramatically all around the world. Broad adoption of fossil fuels has triggered an enormous threat to the environment. To ensure sustainability of our species and habitat, new solutions to fulfill the energy demand have to be found. READ MORE

  4. 2. Phase characterization of polar liquid crystals using dielectric spectroscopy

    Author : Jan Lagerwall; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; surface-induced phases; soft mode; dielectric spectroscopy; chiral-dopant mixtures; antiferroelectricity; ferroelectricity; Goldstone mode; polar liquid crystals;

    Abstract : .... READ MORE

  5. 3. Infrared spectroscopy studies of adsorption and photochemistry on TiO2 surfaces : From single crystals to nanostructured materials

    Author : Andreas Mattsson; Lars Österlund; Per-Anders Carlsson; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Abstract : TiO2 based photocatalysis is a green nanotechnology that can be used for removal of pollutants from water and air, as well as making synthetic fuels from water and carbon dioxide. Said photocatalysis has received major research interests during the last decades. READ MORE

  6. 4. Electro-optical properties of one-dimensional organic crystals

    Author : Gleb Lobov; Sergei Popov; Lech Wosinski; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Physics; Fysik;

    Abstract : The recent development of photonics and applications puts new challenges for systems using emission, transmission and modulation of light. For these reasons, novel optical materials attract a special interest for their enabling properties for novel technologies. READ MORE

  7. 5. Free-space cavity optomechanical systems on a chip with III-V heterostructures

    Author : Sushanth Kini; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optomechanics; Micromechanical resonators; Cavity Optomechanics; III-V materials; Photonic crystals;

    Abstract : Cavity optomechanics examines the mutual interaction between light and mechanical motion for controlling mechanical resonators down to the quantum regime. A major challenge in the field of cavity optomechanics remains accessing a strong interaction between the light field and mechanics on the level of single quanta. READ MORE