Search for dissertations about: "green nanotechnology"

Showing result 1 - 5 of 11 swedish dissertations containing the words green nanotechnology.

2. 1. Gold-Based Nanoparticles and Thin Films : Applications to Green Nanotechnology

   Author : Pia Lansåker; Claes-Göran Granqvist; Gunnar Niklasson; Ulf Helmersson; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; green nanotechnology; transparent conductors; nanoparticles; gold coalescence; substrate effect; temperature effect; Fysik; Physics;

   Abstract : The use of gold-based nanoparticles and thin films is very promising when it comes to improving several green nanotechnologies. Therefore, in order to further their use in applications such as electrochromic devices, photovoltaics, light-emitting diodes and photocatalysis, the aim of this work was to study the growth of gold-based nanoparticles and thin films. READ MORE

4. 2. Transparent Wood Biocomposites for Sustainable Development

   Author : Celine Montanari; Lars Berglund; Peter Olsen; Alexander Bismarck; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transparent wood; biocomposite; eco-friendly; nanotechnology; bio-based polymer; green chemistry; functionalization; thermal energy storage; Transparent trä; biokomposit; miljövänligt; nanoteknik; biobaserad polymer; grön kemi; funktionalisering; lagring av värmeenergi; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : Sustainable wood nanotechnologies that combine optical transmittance and mechanical performance are interesting for new functionalities utilizing transparency. Wood is a sophisticated bio-based material with a natural hierarchical, anisotropic and porous structure. READ MORE

5. 3. Luminescence Properties of ZnO Nanostructures and Their Implementation as White Light Emitting Diodes (LEDs)

   Author : Naveed ul Hassan Alvi; Magnus Willander; Omer Nour; Vladimir V. Mitin; Linköpings universitet; []
   Keywords : Nanotechnology; Zinc oxide; nanostructures; luminescence; LEDs; color rendering; NATURAL SCIENCES; NATURVETENSKAP;

   Abstract : In this thesis, luminescence properties of ZnO nanostructures (nanorods, nanotubes, nanowalls and nanoflowers) are investigated by different approaches for possible future application of these nanostructures as white light emitting diodes. ZnO nanostructures were grown by different growth techniques on different p-type substrates. READ MORE

6. 4. Green Chemical Synthesis of II-VI Semiconductor Quantum Dots

   Author : Robina Shahid; Mamoun Muhammed; Gunnar Westin; KTH; []
   Keywords : Semiconductor; Quantum Dots; Microwave; Ionic Liquids; Green Chemical Syntheis; Quantum Confinement; Optical Properties;

   Abstract : Nanotechnology is the science and technology of manipulating materials at atomic and molecular scale with properties different from bulk. Semiconductor QDs are important class of nanomaterials with unique physical and chemical properties owing to the quantum confinement effect. READ MORE

7. 5. Applications of nanotechnology in neuroscience : functionalized superparamagnetic nanoparticles as contrast enhancers in experimental magnetic resonance imaging

   Author : Fu-Hua Wang; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Magnetic resonance imaging (MRI) is a noninvasive imaging technique that helps clinicians not only to diagnose but also to plan the treatment of invasive surgery and actually treat medical conditions. Superparamagnetic iron oxide nanoparticles (SPIONs) are a family of MRI contrast agents that improves MRI sensitivity/specificity. READ MORE