• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics

    Voltage Losses in Organic Solar Cells: Understanding the Contributions of Intramolecular Vibrations to Nonradiative Recombinations

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Chen, Xiankai cc
    Bredas, Jean-Luc cc
    KAUST Department
    KAUST Solar Center (KSC)
    Laboratory for Computational and Theoretical Chemistry of Advanced Materials
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017-12-18
    Online Publication Date
    2017-12-18
    Print Publication Date
    2018-03
    Permanent link to this record
    http://hdl.handle.net/10754/626635
    
    Metadata
    Show full item record
    Abstract
    The large voltage losses usually encountered in organic solar cells significantly limit the power conversion efficiencies (PCEs) of these devices, with the result that the current highest PCE values in single-junction organic photovoltaic remain smaller than for other solar cell technologies, such as crystalline silicon or perovskite solar cells. In particular, the nonradiative recombinations to the electronic ground state from the lowest-energy charge-transfer (CT) states at the donor-acceptor interfaces in the active layer of organic devices, are responsible for a significant part of the voltage losses. Here, to better comprehend the nonradiative voltage loss mechanisms, a fully quantum-mechanical rate formula is employed within the framework of time-dependent perturbation theory, combined with density functional theory. The objective is to uncover the specific contributions of intramolecular vibrations to the CT-state nonradiative recombinations in several model systems, which include small-molecule and polymer donors as well as fullerene and nonfullerene acceptors.
    Citation
    Chen X-K, Brédas J-L (2017) Voltage Losses in Organic Solar Cells: Understanding the Contributions of Intramolecular Vibrations to Nonradiative Recombinations. Advanced Energy Materials: 1702227. Available: http://dx.doi.org/10.1002/aenm.201702227.
    Sponsors
    The authors acknowledge the financial support from the King Abdullah University of Science and Technology and, at the Georgia Institute of Technology, from the Office of Naval Research (Award No. N00014-17-1-2208). The authors are grateful to the KAUST IT Research Computing Team and Supercomputing Laboratory for providing continuous assistance as well as computational and storage resources.
    Publisher
    Wiley
    Journal
    Advanced Energy Materials
    DOI
    10.1002/aenm.201702227
    Additional Links
    http://onlinelibrary.wiley.com/doi/10.1002/aenm.201702227/full
    ae974a485f413a2113503eed53cd6c53
    10.1002/aenm.201702227
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; KAUST Solar Center (KSC)

    entitlement

     
    DSpace software copyright © 2002-2021  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.