Search for dissertations about: "Thesis on ZnO"

Showing result 1 - 5 of 137 swedish dissertations containing the words Thesis on ZnO.

2. 1. ZnO Quantum Dots : Size Dependent Optical, Vibrational and Photoelectrochemical Properties

   Author : Jesper Jacobsson; Tomas Edvinsson; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; ZnO; nanoparticels; quantum dots; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Abstract : This thesis is devoted to quantum dots of ZnO in the size regime 2.5-10 nm.The focus is directed towards their size dependent properties with specialemphasis on the optical, vibrational and photocatalytic properties. The particleswere synthesized by hydrolysis in alkaline zinc acetate solution. READ MORE

4. 2. Growth and Characterization of ZnO Nanocrystals

   Author : Leif KE Ericsson; Kjell O Magnusson; Lars SO Johansson; Hanmin M Zhang; Omer Nour; Karlstads universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; ZnO; Nanocrystals; Surface physics; XPS; SEM; AES; AFM; STM; Physics; Fysik;

   Abstract : The understanding of surfaces of materials is of crucial importance to all of us. Considering nanocrystals (NCs), that have a large surface to bulk ratio, the surfaces become even more important. Therefore, it is important to understand the fundamental surface properties in order to use NCs efficiently in applications. READ MORE

5. 3. Functional Metal Oxide Materials Deposited by Inkjet Printing Technique

   Author : Yan Wu; Lyubov Belova; Gillian Gehring; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Inkjet printing; photoconductivity; ZnO; Al-ZnO; composite; electron transfer; CdS; field effect transistor; photosensitive; RT do-ferromagnetism; Mn-doped ZnO; MgO; Materials science; Teknisk materialvetenskap;

   Abstract : This thesis presents a comprehensive study of the intrinsic room temperature ferromagnetism in 85 to 100nm thin films produced by in situ deposition of industrially important pristine MgO and ZnO by inkjet printing. It is suggested that the observed long range magnetic order, the so-called do magnetism in these oxides arises from cation vacancies. READ MORE

6. 4. Surface and Interface Studies of ZnO using Reactive Dynamics Simulation

   Author : David Raymand; Kersti Hermansson; Daniel Spångberg; Kai Nordlund; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; catalysis; molecular dynamics; force-fields; metal oxide; ZnO; dynamical effects on reactivity; Inorganic chemistry; Oorganisk kemi; Kemi med inriktning mot oorganisk kemi; Chemistry with specialization in Inorganic Chemistry;

   Abstract : About 90% of all chemicals are produced with the help of catalysts, substances with the ability to accelerate reactions without being consumed. Metal oxides play a prominent role in catalysis, since they are able to act reversibly in many chemical processes. Zink oxide (ZnO) is used to catalyse a number of industrially important reactions. READ MORE

7. 5. Lighting and Sensing Applications of Nanostructured ZnO, CuO and Their Composites

   Author : Ahmed ELtahir Elsharif Zainelabdin; Magnus Willander; Omer Nour; Leonard J. Brillson; Linköpings universitet; []
   Keywords : ZnO; CuO; Nanostructures; Composites; ZnO polymer LEDs; humidity sensor; p-n heterojunction;

   Abstract : Low dimensional nanostructures of zinc oxide (ZnO), cupric oxide (CuO), and their composite nanostructures possess remarkable physical and chemical properties. Fundamental understanding and manipulation of these unique properties are crucial for all potential applications. READ MORE