• 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

    Extraordinary Carrier Diffusion on CdTe Surfaces Uncovered by 4D Electron Microscopy

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    El-Zohry, Ahmed
    Shaheen, Basamat S. cc
    Burlakov, Victor M.
    Yin, Jun cc
    Hedhili, Mohamed N. cc
    Shikin, Semen
    Ooi, Boon S. cc
    Bakr, Osman cc
    Mohammed, Omar F. cc
    KAUST Department
    Chemical Science Program
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Electrical Engineering Program
    Functional Nanomaterials Lab (FuNL)
    KAUST Catalysis Center (KCC)
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Photonics Laboratory
    Physical Science and Engineering (PSE) Division
    Surface Science
    Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
    Date
    2019-02-01
    Online Publication Date
    2019-02-01
    Print Publication Date
    2019-03
    Permanent link to this record
    http://hdl.handle.net/10754/652967
    
    Metadata
    Show full item record
    Abstract
    The lack of understanding and control over losses of charge carriers at the surfaces/interfaces of solar cell materials is the major factor limiting overall device conversion efficiency. This work describes a breakthrough in real-space visualization of charge-carrier dynamics at the atomic surface level of CdTe, a leading direct bandgap semiconductor in commercial thin-film solar cells. We present a fundamentally new understanding of charge-carrier diffusion and carrier trapping of CdTe single crystals using a four-dimensional scanning ultrafast electron microscope (4D-SUEM)—the only instrument of its kind currently in operation. We found that the diffusion of charge carriers at surfaces vary within extreme ranges, from extraordinary to virtually trapped when surface orientation was changed from (110) to (211). The work presented here is a milestone in addressing the device performance bottlenecks stemming from surfaces and a new avenue to create CdTe-based optoelectronic devices.
    Citation
    El-Zohry AM, Shaheen BS, Burlakov VM, Yin J, Hedhili MN, et al. (2019) Extraordinary Carrier Diffusion on CdTe Surfaces Uncovered by 4D Electron Microscopy. Chem 5: 706–718. Available: http://dx.doi.org/10.1016/j.chempr.2018.12.020.
    Sponsors
    The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). We thank Dr. Daliang Zhang (KAUST Core Labs) for helping with the HR-TEM analysis and simulations.
    Publisher
    Elsevier BV
    Journal
    Chem
    DOI
    10.1016/j.chempr.2018.12.020
    Additional Links
    https://www.sciencedirect.com/science/article/pii/S2451929418305837
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.chempr.2018.12.020
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Electrical Engineering Program; Chemical Science Program; Material Science and Engineering Program; Photonics Laboratory; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC); Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

    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.