IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-09872-w.html
   My bibliography  Save this article

Ultrafast charge transfer coupled with lattice phonons in two-dimensional covalent organic frameworks

Author

Listed:
  • Tae Wu Kim

    (Korea Advanced Institute of Science and Technology (KAIST)
    Korea Advanced Institute of Science and Technology (KAIST)
    Institute for Basic Science (IBS)
    Argonne National Laboratory)

  • Sunhong Jun

    (Institute for Basic Science (IBS)
    Memory Business, Samsung Electronics)

  • Yoonhoo Ha

    (Korea Advanced Institute of Science and Technology (KAIST))

  • Rajesh K. Yadav

    (Korea Research Institute of Chemical Technology (KRICT))

  • Abhishek Kumar

    (Korea Research Institute of Chemical Technology (KRICT))

  • Chung-Yul Yoo

    (Korea Institute of Energy Research (KIER))

  • Inhwan Oh

    (Korea Advanced Institute of Science and Technology (KAIST)
    Korea Advanced Institute of Science and Technology (KAIST)
    Institute for Basic Science (IBS))

  • Hyung-Kyu Lim

    (Kangwon National University)

  • Jae Won Shin

    (Institute for Basic Science (IBS))

  • Ryong Ryoo

    (Korea Advanced Institute of Science and Technology (KAIST)
    Institute for Basic Science (IBS))

  • Hyungjun Kim

    (Korea Advanced Institute of Science and Technology (KAIST))

  • Jeongho Kim

    (Inha University)

  • Jin-Ook Baeg

    (Korea Research Institute of Chemical Technology (KRICT))

  • Hyotcherl Ihee

    (Korea Advanced Institute of Science and Technology (KAIST)
    Korea Advanced Institute of Science and Technology (KAIST)
    Institute for Basic Science (IBS))

Abstract

Covalent organic frameworks (COFs) have emerged as a promising light-harvesting module for artificial photosynthesis and photovoltaics. For efficient generation of free charge carriers, the donor–acceptor (D-A) conjugation has been adopted for two-dimensional (2D) COFs recently. In the 2D D-A COFs, photoexcitation would generate a polaron pair, which is a precursor to free charge carriers and has lower binding energy than an exciton. Although the character of the primary excitation species is a key factor in determining optoelectronic properties of a material, excited-state dynamics leading to the creation of a polaron pair have not been investigated yet. Here, we investigate the dynamics of photogenerated charge carriers in 2D D-A COFs by combining femtosecond optical spectroscopy and non-adiabatic molecular dynamics simulation. From this investigation, we elucidate that the polaron pair is formed through ultrafast intra-layer hole transfer coupled with coherent vibrations of the 2D lattice, suggesting a mechanism of phonon-assisted charge transfer.

Suggested Citation

  • Tae Wu Kim & Sunhong Jun & Yoonhoo Ha & Rajesh K. Yadav & Abhishek Kumar & Chung-Yul Yoo & Inhwan Oh & Hyung-Kyu Lim & Jae Won Shin & Ryong Ryoo & Hyungjun Kim & Jeongho Kim & Jin-Ook Baeg & Hyotcherl, 2019. "Ultrafast charge transfer coupled with lattice phonons in two-dimensional covalent organic frameworks," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09872-w
    DOI: 10.1038/s41467-019-09872-w
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-09872-w
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-09872-w?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. Rengan Luo & Haifeng Lv & Qiaobo Liao & Ningning Wang & Jiarui Yang & Yang Li & Kai Xi & Xiaojun Wu & Huangxian Ju & Jianping Lei, 2021. "Intrareticular charge transfer regulated electrochemiluminescence of donor–acceptor covalent organic frameworks," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    2. Qinying Pan & Mohamed Abdellah & Yuehan Cao & Weihua Lin & Yang Liu & Jie Meng & Quan Zhou & Qian Zhao & Xiaomei Yan & Zonglong Li & Hao Cui & Huili Cao & Wenting Fang & David Ackland Tanner & Mahmoud, 2022. "Ultrafast charge transfer dynamics in 2D covalent organic frameworks/Re-complex hybrid photocatalyst," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    3. Fuyang Liu & Peng Zhou & Yanghui Hou & Hao Tan & Yin Liang & Jialiang Liang & Qing Zhang & Shaojun Guo & Meiping Tong & Jinren Ni, 2023. "Covalent organic frameworks for direct photosynthesis of hydrogen peroxide from water, air and sunlight," Nature Communications, Nature, vol. 14(1), pages 1-10, 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:10:y:2019:i:1:d:10.1038_s41467-019-09872-w. 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.