Sökning: "organiska solceller"

Visar resultat 1 - 5 av 24 uppsatser innehållade orden organiska solceller.

  1. 1. MITOS

    Kandidat-uppsats, KTH/Arkitektur

    Författare :Lisa Möller; [2022]
    Nyckelord :Alberga; Eskilstuna; culture center; meditation; retreat; temple; wellness;

    Sammanfattning : Mitos is a proposition for a meditation center in Alberga in Eskilstuna municipality, Sweden. The meditation center offers room for temporary as well as longer stay for visiting guests enjoying the centers dance halls, yoga and meditation studios and saunas. LÄS MER

  3. 2. Photophysics of the polymer acceptor PF5-Y5 in organic photovoltaics : A first principles theory based study

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Anton Almén; [2022]
    Nyckelord :PF5-Y5; Non-fullerene-acceptor; NFA; polymer; fundamental; optical; gap; oxidation; reduction; exciton; binding; energy; oligomer; length; PF5-Y5; Non-fullerene-acceptor; NFA; polymer; fundamentalt; optiskt; gap; oxidation; reduktion; exciton; binding; energi; oligomerlängd;

    Sammanfattning : Non-fullerene Acceptors (NFAs) have gathered a great deal of interest for use inorganic photovoltaics (OPVs) due to recent breakthroughs in their power conversion efficiency and other advantages they offer over their Fullerene-based counterparts. In this work, a new promising non-fullerene polymer acceptor, PF5-Y5, have been studied using density functional theory and time-dependent density functional theory; and the effects that oligomer length, geometry relaxation and exchange-correlation interaction has on the exciton binding energies (the difference between optical and fundamental energy gaps) have been investigated. LÄS MER

  4. 3. Solar Energy Harvesting for Outdoor Applications

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Jonatan Andersson; Kristoffer Kjaerran; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The use of solar cells as a solution for different energy harvesting applications has seen a significant growth during the last few years. With recent advances in the power conversion efficiency and manufacturability of organic photovoltaic cells these systems can be made even cheaper and more available for consumers, opening up new ways for solar technology to be implemented into products. LÄS MER

  5. 4. Computational Prediction Of Efficiency Parameters In Organic Solar Cells : From Polymer Donors And Non Fullerene Acceptors

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Författare :Martin Karlsson; [2022]
    Nyckelord :Organic solar cells; computational chemistry; DFT.;

    Sammanfattning : The field of organic solar cells is getting more and more attention as the need forrenewable energy sources rises. When developing new materials for organic solar cellssynthesizing the new materials, is a time consuming and costly process. LÄS MER

  7. 5. Charge transfer states at polymer solar cell interfaces : Insights from atomic-scale modeling

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Rickard Svensson; [2022]
    Nyckelord :organic solar cells; OSC; polymer; interface; charge transfer; non-fullerene acceptor; PYT; PBDB-T; DFT; TD-DFT; conformation; alkyl groups; methylation; HOMO; LUMO; FMO; NTO; UV-Vis; DOS; exciton; exciton binding energy; dipole moment; open-circuit voltage; organiska solceller; OSC; polymer; gränssnitt; laddningsöverföring; icke-fullerenacceptor; PYT; PBDB-T; DFT; TD-DFT; konformation; alkylgrupper; metylering; HOMO; LUMO; FMO; NTO; UV-Vis; DOS; exciton; excitonbindningsenergi; dipolmoment; tomgångsspänning;

    Sammanfattning : Organic solar cells (OSCs) based on non-fullerene acceptors (NFAs) have attracted a great deal of attention in recent years due to their rapidly increasing efficiency and enormous potential. In this work, the optical and electronic properties of systems containing the very promising non-fullerene acceptor PYT have been thoroughly studied with the use of the density functional theory (DFT) and the time-dependent density functional theory (TDDFT). LÄS MER