• Login
    View Item 
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • View Item
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • 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

    High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Kim, Gi-Hwan
    García de Arquer, F. Pelayo
    Yoon, Yung Jin
    Lan, Xinzheng
    Liu, Mengxia
    Voznyy, Oleksandr cc
    Yang, Zhenyu cc
    Fan, Fengjia
    Ip, Alexander H.
    Kanjanaboos, Pongsakorn
    Hoogland, Sjoerd
    Kim, Jin Young
    Sargent, Edward H. cc
    KAUST Grant Number
    KUS-11-009-21
    Date
    2015-11-02
    Online Publication Date
    2015-11-02
    Print Publication Date
    2015-11-11
    Permanent link to this record
    http://hdl.handle.net/10754/598487
    
    Metadata
    Show full item record
    Abstract
    © 2015 American Chemical Society. The optoelectronic tunability offered by colloidal quantum dots (CQDs) is attractive for photovoltaic applications but demands proper band alignment at electrodes for efficient charge extraction at minimal cost to voltage. With this goal in mind, self-assembled monolayers (SAMs) can be used to modify interface energy levels locally. However, to be effective SAMs must be made robust to treatment using the various solvents and ligands required for to fabricate high quality CQD solids. We report robust self-assembled monolayers (R-SAMs) that enable us to increase the efficiency of CQD photovoltaics. Only by developing a process for secure anchoring of aromatic SAMs, aided by deposition of the SAMs in a water-free deposition environment, were we able to provide an interface modification that was robust against the ensuing chemical treatments needed in the fabrication of CQD solids. The energy alignment at the rectifying interface was tailored by tuning the R-SAM for optimal alignment relative to the CQD quantum-confined electron energy levels. This resulted in a CQD PV record power conversion efficiency (PCE) of 10.7% with enhanced reproducibility relative to controls.
    Citation
    Kim G-H, García de Arquer FP, Yoon YJ, Lan X, Liu M, et al. (2015) High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers. Nano Lett 15: 7691–7696. Available: http://dx.doi.org/10.1021/acs.nanolett.5b03677.
    Sponsors
    This publication is based in part on work supported by Award KUS-11-009-21, made by King Abdullah University of Science and Technology (KAUST), by the Ontario Research Fund - Research Excellence Program, by the Natural Sciences and Engineering Research Council (NSERC) of Canada, and by the International Cooperation of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (2012T100100740). We thank Emre Yassitepe and Cao-Thang Dinh for helpful discussions. We also thank E. Palmiano, L. Levina, A. Labelle, R. Wolowiec, and D. Kopilovic for their help over the course of this study.
    Publisher
    American Chemical Society (ACS)
    Journal
    Nano Letters
    DOI
    10.1021/acs.nanolett.5b03677
    PubMed ID
    26509283
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.nanolett.5b03677
    Scopus Count
    Collections
    Publications Acknowledging KAUST Support

    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.