Avancerad sökning

Hittade 4 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Growth and Characterization of ZnO Nanocrystals

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

   Sammanfattning : 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. LÄS MER

3. 2. I ständig strävan efter framgång? : föreningsdemokratins innehåll och villkor i Örebro Sportklubb 1908-89

   Författare :Daniel Alsarve [Arvidsson]; Björn Horgby; Bill Sund; Christer Ericsson; Leif Yttergren; Örebro universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; sports; association; democracy; non profit organisation; voluntarism; amateurism; professionalism; social capital; Historia; History;

   Sammanfattning : The aim of this dissertation is to study the conditions of and changes in sociative democracy processes at club level. One sports club is studied, Örebro Sportklubb (ÖSK), from its foundation in 1908 up to 1989. The main sources are club minutes, member magazines and annual reports. LÄS MER

4. 3. Probing the effects of photodegradation of acceptor materials in polymer solar cells: bulk, surface, and molecular level

   Författare :Vanja Blazinic; Ellen Moons; Leif Ericsson; Thomas Wågberg; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; photovoltaics; polymer solar cell; conjugated polymers; fullerene; photo-oxidation; spectroscopy; Physics; Fysik;

   Sammanfattning : Polymer solar cells (PSC) have reached record power conversion efficiencies of over 15%. The operational lifetime of PSCs, however, has to increase for their use in large area outdoor applications. LÄS MER

5. 4. Film morphology for organic solar cells : Effect of Solubility and Gravity Conditions

   Författare :Ishita Jalan; Jan van Stam; Leif Ericsson; Stela Andrea Muntean; Philippe Leclère; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi; Chemistry; Chemistry - Physical Chemistry; Kemi - fysikalisk kemi;

   Sammanfattning : Organic photovoltaics is a promising environmentally friendly technology, due to their printability, light-weight nature and mechanical flexibility, and the possibility to use off-grid. Research and development in this field has resulted in power conversion efficiencies of over 15%. LÄS MER