Sökning: "solar photovoltaics"

Visar resultat 6 - 10 av 110 avhandlingar innehållade orden solar photovoltaics.

1. 6. Nanoparticle plasmon influence on the charge carrier generation in solar cells

   Författare :Carl Hägglund; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; solar cells; finite element method; nanoparticle plasmons; photovoltaics; nanofabrication; Si; dye sensitized solar cells; localized surface plasmon resonances;

   Sammanfattning : Global warming is a potential threat to life on earth and to human society. It is by much evidence linked to the extensive use of fossil fuels in our present energy system. Replacing the fossil fuels by alternative sources of energy poses a tremendous challenge for mankind, but is not at all undoable. LÄS MER

3. 7. Growth of Semiconductor Nanowires for Solar Cell Applications

   Författare :Magnus Heurlin; Fasta tillståndets fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MOVPE; Aerotaxy; III-V semiconductor materials; nanowire; solar cells; photovoltaics; Fysicumarkivet A:2015:Heurlin;

   Sammanfattning : Nanowires have the ability to absorb light much more efficient than conventional thin film layers. This makes them candidates for the development of new types of solar cells that have higher efficiency and lower material usage than current technologies. LÄS MER

4. 8. Diffusion of dynamic innovations : A case study of residential solar PV systems

   Författare :Emrah Karakaya; Cali Nuur; Antonio Hidalgo; Anna Bergek; KTH; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Dynamic innovations; diffusion; residential solar; photovoltaics; time; space; Industriell ekonomi och organisation; Industrial Engineering and Management;

   Sammanfattning : In the literature on diffusion of innovations, it is widely known that the characteristics and socio-environmental settings of adopters do evolve in space and time. What about innovations themselves? During the diffusion process, don’t some innovations continuously alter in space and time? If so, how does the dynamic character of an innovation influence the diffusion process? In previous research, it has been often assumed that innovations do not continuously alter or get modified when diffusing from a source to potential adopters. LÄS MER

5. 9. Morphology and material stability in polymer solar cells

   Författare :Rickard Hansson; Ellen Moons; Andreas Opitz; Mats Fahlman; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polymer solar cell; photovoltaics; morphology; photo-degradation; conjugated polymer; fullerene; synchroton-based techniques; Physics; Fysik;

   Sammanfattning : Polymer solar cells are promising in that they are inexpensive to produce, and due to their mechanical flexibility have the potential for use in applications not possible for more traditional types of solar cells. The performance of polymer solar cells depends strongly on the distribution of electron donor and acceptor material in the active layer. LÄS MER

7. 10. From Light to Dark : Electrical Phenomena in Cu(In,Ga)Se2 Solar Cells

   Författare :Piotr Szaniawski; Marika Edoff; Uwe Zimmermann; Jörgen Olsson; Thomas Walter; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solar cells; Photovoltaics; Cu InGa Se2; CIGS; Electrical characterization; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

   Sammanfattning : In Cu(In,Ga)Se2 (CIGS) solar cells the CIGS layer serves as the light absorber, growing naturally p-type. Together with an n-type buffer layer they form a p-n heterojunction. Typically, CdS is used as a buffer, although other, less toxic materials are investigated as alternatives. LÄS MER