Search for dissertations about: "qds"

Showing result 1 - 5 of 71 swedish dissertations containing the word qds.

2. 1. Synthesis of Polymeric Nanocomposites for Drug Delivery and Bioimaging

   Author : Heba Asem; Joydeep Dutta; Moustapha Hassan; Fei Ye; Jöns Hilborn; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biodegradable polymers; SPION; QDs; drug delivery; cytotoxicity; MRI; in vivo fluorescence imaging; biodistribution; Fysik; Physics;

   Abstract : Nanomaterials have gained great attention for biomedical applications due to their extraordinary physico-chemical and biological properties. The current dissertation presents the design and development of multifunctional nanoparticles for molecular imaging and controlled drug delivery applications which include biodegradable polymeric nanoparticles, superparamagnetic iron oxide nanoparticles (SPION)/polymeric nanocomposite for magnetic resonance imaging (MRI) and drug delivery, manganese-doped zinc sulfide (Mn:ZnS) quantum dots (QDs)/ SPION/ polymeric nanocomposites for fluorescence imaging, MRI and drug delivery. READ MORE

4. 2. Controlled growth of hexagonal GaN pyramids and InGaN QDs

   Author : Anders Lundskog; Erik Janzén; Urban Forsberg; Per-Olof Holtz; Lars-Erik Wernersson; Linköpings universitet; []
   Keywords : ;

   Abstract : Gallium-nitride (GaN) and its related alloys are direct band gap semiconductors, with a wide variety of applications. The white light emitting diode (LED) is of particular importance as it is expected to replace energy inefficient light bulb and hazardous incandescent lamps used today. READ MORE

5. 3. Coherent Multidimensional Spectroscopy: Development of Efficient Data Acquisition and Analyses of Quantum Dot 2D Spectra

   Author : Zhengjun Wang; NanoLund: Centre for Nanoscience; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coherent Multidimensional Spectroscopy; quantum beating; quantum coherence; 2D electronic spectroscopy; 2D fluorescence spectroscopy; Compressed Sensing theory; CdSe QDs; LH2;

   Abstract : Coherent multidimensional spectroscopy (CMDS) is the most complete nonlinear optical technique based on the interaction of multiple short laser pulses with matter. It has grown to play a significant role in studies of optoelectronic materials and pigment protein complexes. READ MORE

6. 4. Engineering Multicomponent Nanostructures for MOSFET, Photonic Detector and Hybrid Solar Cell Applications

   Author : Asghar Jamshidi Zavaraki; Hans Ågren; Kevin J. Webb; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Epitaxial G rowth; Reduced Pressure Chemical Vapor Deposition; GeSnSiC; MOSFET; Photonic Detector; Resistivity; Phosp hor and Boron doping; Colloidal QDs Sensitized Solar Cell; Cd - free and Cd - based QDs; High Resolution Reciprocal Lattice Map; High Resolution X - Ray Diffraction; High Resolution Transmission Electron Microscopy; High resolution Scanning E lectron Microscopy .;

   Abstract : Silicon technologyhas been seekingfor a monolithic solution for a chip where data processing and data communication is performed in the CMOS part and the photonic component, respectively. Traditionally, silicon has been widely considered for electronic applications but not for photonic applications due to its indirect bandgap nature. READ MORE

7. 5. Fabrication and Photoelectrochemical Applications of II-VI Semiconductor Nanomaterials

   Author : Abhilash Sugunan; Muhammet Toprak; Mamoun Muhammed; Gerrit Boschloo; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ZnO; nanowire arrays; photocatalysis; CdTe; CdSe; CdS; nanotetrapods; nanotetrahedrons; photoconduction; nano-gap electrodes; Type-II QDs; P3HT nanofibers; microwave synthesis.;

   Abstract : In this work we investigated fabrication of semiconductor nanomaterials and evaluated their potential for photo-chemical and photovoltaic applications. We investigated different II-VI semiconductor nanomaterial systems; (i) ZnO oriented nanowire arrays non-epitaxially grown from a substrate; and (ii) colloidal CdE (E=Te,Se,S) quantum structures synthesized by solution-based thermal decomposition of organo-metallic precursors. READ MORE