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Search results for: ORGANIC PHOTOVOLTAICS

  • Organic photovoltaics - chosen aspects

    There are many types of organic and organic/inorganic (hybrid) photovoltaic devices that possess many beneficial properties over inorganic solar cells. That makes the former suitable for a broad range of applications and hence so much attention is paid to their development. In spite of intensive research carried on this field of science and technology there are still many crucial problems that need to be solved. Extensive knowledge...

  • Effect of Polymerization Statistics on the Electronic Properties of Copolymers for Organic Photovoltaics

    Publication
    • G. Boschetto
    • H. Xue
    • J. Dziedzic
    • M. Krompiec
    • C. Skylaris

    - Journal of Physical Chemistry C - Year 2017

    Statistical block copolymers, composed of donor (D) and acceptor (A) blocks, are a novel type of material for organic photovoltaics (OPVs) devices. In particular a new series of polymers based on PBTZT-stat-BDTT-8, recently developed by Merck, offers high solubility in different solvents, and a high power conversion efficiency (PCE) in different device architectures. Although it is known that the electronic properties of these...

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  • Photovoltaic phenomena in devices with perfluorozincphthalocyanine layer

    Publication

    - Year 2016

    The course of photovoltaic phenomenon in organic photovoltaic cells utilizing thin layers of perfluorozincphthalocyanine was studied in few single and planar bilayer configurations. Mechanisms of photogeneration and recombination of free charge carriers were determined and active interfaces were localized. In case of single layer cells these interfaces were located at the front electrode/F16ZnPc junctions, whereas photogeneration...

  • Efficiency of exciton splitting in organic photovoltaic cells within EQE spectrum

    The paper presents a procedure of estimating the efficiency of exciton splitting at ED/EA interface. The procedure consists in evaluation of splitting of excitons into electron-hole pairs on the basis of the external quantum efficiency spectra of planar cells and spectra of absorbance of active organic layers. The fitting parameters are the exciton splitting probabilities at ED/EA interface. The presented procedure was applied...

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  • Electrical properties of organic and perovskite systems used in solar cells

    Publication

    - Year 2019

    Nowadays, a great progress in the areas of molecular and hybrid photovoltaics is observed. The devices based on organic and perovskite materials are getting attention mostly due to their low cost production process. However, their efficiency and stability are still lower than for inorganic materials which make them less popular. Therefore, a detailed understanding of the device physics is fundamental for organic and perovskite...

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