Sökning: "Hole-transport material"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden Hole-transport material.

  1. 1. Organic Hole-Transport Materials for Perovskite Solar Cells

    Författare :Linqin Wang; Licheng Sun; Nam-Gyu Park; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Hole-transport material; Photovoltaic device; Perovskite solar cell; Dopant-free; Carbazole; Spiro[fluorene-9; 9 -xanthene]; Small organic molecule; Crosslinked polymer; Solution-processed.; Kemi; Chemistry;

    Sammanfattning : Research on perovskite solar cells (PSCs) has undergone dramatic development since the first cells were reported in 2009, and the past decade has witnessed a significant breakthrough on their power conversion efficiencies (PCEs) from 3.8% to 25%. LÄS MER

  3. 2. Organic Hole Transport Materials for Solid-State Dye-Sensitized and Perovskite Solar Cells

    Författare :Jinbao Zhang; Erik Johansson; Gerrit Boschloo; Anders Hagfeldt; Nick Vlachopoulos; Ellen Moons; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; photoelectrochemical polymerization; PEDOT; dye; hole transport material; small molecule; perovskite solar cell;

    Sammanfattning : Solid-state dye-sensitized solar cells (ssDSSCs) and recently developed perovskite solar cells (PSCs) have attracted a great attention in the scientific field of photovoltaics due to their low cost, absence of solvent, simple fabrication and promising power conversion efficiency (PCE). In these types of solar cell, the dye molecule or the perovskite can harvest the light on the basis of electron excitation. LÄS MER

  4. 3. Novel organic sensitizers and hole transport materials for efficient solid-state photovoltaic devices

    Författare :Peng Liu; Lars Kloo; Udo Bach; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic sensitizers; ssDSCs; perovskite solar cell; hole transport materials; cross-linked polymeric sulfur; Kemi; Chemistry;

    Sammanfattning : State-of-art solid-state photovoltaic devices, such as solid-state dye sensitized solar cells (ssDSSCs) and perovskite solar cells have attracted significant attention due to their high efficiency and potential low-cost manufacture. However, there are still challenges that limit the application up-scaling.. LÄS MER

  5. 4. Materials and Device Engineering for Efficient and Stable Polymer Solar Cells

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

    Sammanfattning : Polymer solar cells form a promising technology for converting sunlight into electricity, and have reached record efficiencies over 10% and lifetimes of several years. The performance of polymer solar cells depends strongly on the distribution of electron donor and acceptor materials in the active layer. LÄS MER

  7. 5. Functional Materials for Perovskite Solar Cells

    Författare :Wei Zhang; Lars Kloo; Neil Robertson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; perovskite solar cell; photovoltaic device; lead-free light absorbers; hole-transport materials; coordination complexes; p-type dopants; organic salts; surface passivation.; Kemi; Chemistry;

    Sammanfattning : Energy plays a significant role in our daily lives, but most energy provided by fossil fuels causes serious environmental problems including air pollution, global warming, and ecological damage. In addition, it has been estimated that all of our fossil fuels will run out in 2088 and thus it is highly important to study and apply renewable energy sources. LÄS MER