Sökning: "fill factor"

Visar resultat 21 - 25 av 44 avhandlingar innehållade orden fill factor.

  1. 21. Novel architectures for flexible electrochemical devices and systems

    Författare :Jun Kawahara; Peter Andersson Ersman; Magnus Berggren; Frederik C. Krebs; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Electrically conducting polymers were discovered in the late 1970s. This finding generated a whole new research area named organic electronics, an area which has attracted great interest and tremendous achievements, in terms of devices and applications, have been reached by different research groups all over the world. LÄS MER

  3. 22. Role of a dry port stakeholder network in intermodal transportation

    Författare :Alena Khaslavskaya; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; dry port; coopetition activities; dry port characteristics; Dry port concept; stakeholder network; intermodal transportation; stakeholder objectives; intermodal transportation challenges;

    Sammanfattning : The concept of a dry port, which emerged from intermodal transportation research approximately 20 years ago, has gained popularity due to its financial benefits and positive environmental impact. The core idea behind the dry port concept is the establishment of high-capacity intermodal transportation in the seaport’s hinterland. LÄS MER

  4. 23. 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

  5. 24. Development of Nanoparticle Sensitized Solar Cells

    Författare :Chunze Yuan; Hans Ågren; Anders Hagfeldt; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum dots; quantum rods; nanoparticles; solar cells; colloidal; type-II; electron extraction; alloy; organic electrolyte; energy relay; upconversion.;

    Sammanfattning : In this thesis, I have been working with the development of nanoparticle sensitized solar cells. In the subarea of quantum dot sensitized solar cells (QDSCs), I have investigated type-II quantum dots (QDs), quantum rods (QRs) and alloy QDs, and developed novel redox couples as electrolytes. LÄS MER

  7. 25. Smoking cessation and health promotion around pregnancy

    Författare :Lena Lendahls; Allmänmedicin och samhällsmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; epidemiology; Folkhälsa; epidemiologi; Public health; health providers.; health counselling; intervention; smoking cessation; cotinine; risk factors; Pregnancy; smoking habits;

    Sammanfattning : A smoking cessation program targeting pregnant women and their partners was monitored during 17 years and subjected to several substudies. All women in Blekinge, who gave birth in the months of September during the period 1984 to 2000, were asked to fill out a questionnaire, anonymously, about their smoking habits before and during pregnancy. LÄS MER