IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v5y2014i1d10.1038_ncomms5224.html
   My bibliography  Save this article

Approaching the limits of transparency and conductivity in graphitic materials through lithium intercalation

Author

Listed:
  • Wenzhong Bao

    (University of Maryland
    University of Maryland
    University of Maryland Energy Research Center)

  • Jiayu Wan

    (University of Maryland
    University of Maryland Energy Research Center)

  • Xiaogang Han

    (University of Maryland
    University of Maryland Energy Research Center)

  • Xinghan Cai

    (University of Maryland)

  • Hongli Zhu

    (University of Maryland
    University of Maryland Energy Research Center)

  • Dohun Kim

    (University of Maryland)

  • Dakang Ma

    (University of Maryland
    Institute for Research in Electronics and Applied Physics, University of Maryland)

  • Yunlu Xu

    (University of Maryland
    Institute for Research in Electronics and Applied Physics, University of Maryland)

  • Jeremy N. Munday

    (University of Maryland
    Institute for Research in Electronics and Applied Physics, University of Maryland)

  • H. Dennis Drew

    (University of Maryland)

  • Michael S. Fuhrer

    (University of Maryland
    School of Physics, Monash University)

  • Liangbing Hu

    (University of Maryland
    University of Maryland Energy Research Center)

Abstract

Various band structure engineering methods have been studied to improve the performance of graphitic transparent conductors; however, none has demonstrated an increase of optical transmittance in the visible range. Here we measure in situ optical transmittance spectra and electrical transport properties of ultrathin graphite (3–60 graphene layers) simultaneously during electrochemical lithiation/delithiation. On intercalation, we observe an increase of both optical transmittance (up to twofold) and electrical conductivity (up to two orders of magnitude), strikingly different from other materials. Transmission as high as 91.7% with a sheet resistance of 3.0 Ω per square is achieved for 19-layer LiC6, which corresponds to a figure of merit σdc/σopt=1,400, significantly higher than any other continuous transparent electrodes. The unconventional modification of ultrathin graphite optoelectronic properties is explained by the suppression of interband optical transitions and a small intraband Drude conductivity near the interband edge. Our techniques enable investigation of other aspects of intercalation in nanostructures.

Suggested Citation

  • Wenzhong Bao & Jiayu Wan & Xiaogang Han & Xinghan Cai & Hongli Zhu & Dohun Kim & Dakang Ma & Yunlu Xu & Jeremy N. Munday & H. Dennis Drew & Michael S. Fuhrer & Liangbing Hu, 2014. "Approaching the limits of transparency and conductivity in graphitic materials through lithium intercalation," Nature Communications, Nature, vol. 5(1), pages 1-9, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5224
    DOI: 10.1038/ncomms5224
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms5224
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms5224?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Xin Yu & Wencai Ren, 2023. "2D CdPS3-based versatile superionic conductors," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5224. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.