IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-11251-4.html
   My bibliography  Save this article

Ultrafast long-range spin-funneling in solution-processed Ruddlesden–Popper halide perovskites

Author

Listed:
  • David Giovanni

    (Nanyang Technological University
    Research Techno Plaza)

  • Jia Wei Melvin Lim

    (Nanyang Technological University
    Interdisciplinary Graduate School, Nanyang Technological University)

  • Zhongcheng Yuan

    (Linköping University)

  • Swee Sien Lim

    (Nanyang Technological University)

  • Marcello Righetto

    (Nanyang Technological University)

  • Jian Qing

    (Linköping University)

  • Qiannan Zhang

    (Nanyang Technological University)

  • Herlina Arianita Dewi

    (Research Techno Plaza)

  • Feng Gao

    (Linköping University)

  • Subodh Gautam Mhaisalkar

    (Research Techno Plaza
    Nanyang Technological University)

  • Nripan Mathews

    (Research Techno Plaza
    Nanyang Technological University)

  • Tze Chien Sum

    (Nanyang Technological University)

Abstract

Room-temperature spin-based electronics is the vision of spintronics. Presently, there are few suitable material systems. Herein, we reveal that solution-processed mixed-phase Ruddlesden–Popper perovskite thin-films transcend the challenges of phonon momentum-scattering that limits spin-transfer in conventional semiconductors. This highly disordered system exhibits a remarkable efficient ultrafast funneling of photoexcited spin-polarized excitons from two-dimensional (2D) to three-dimensional (3D) phases at room temperature. We attribute this efficient exciton relaxation pathway towards the lower energy states to originate from the energy transfer mediated by intermediate states. This process bypasses the omnipresent phonon momentum-scattering in typical semiconductors with stringent band dispersion, which causes the loss of spin information during thermalization. Film engineering using graded 2D/3D perovskites allows unidirectional out-of-plane spin-funneling over a thickness of ~600 nm. Our findings reveal an intriguing family of solution-processed perovskites with extraordinary spin-preserving energy transport properties that could reinvigorate the concepts of spin-information transfer.

Suggested Citation

  • David Giovanni & Jia Wei Melvin Lim & Zhongcheng Yuan & Swee Sien Lim & Marcello Righetto & Jian Qing & Qiannan Zhang & Herlina Arianita Dewi & Feng Gao & Subodh Gautam Mhaisalkar & Nripan Mathews & T, 2019. "Ultrafast long-range spin-funneling in solution-processed Ruddlesden–Popper halide perovskites," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11251-4
    DOI: 10.1038/s41467-019-11251-4
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-11251-4
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-11251-4?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. Rui Cai & Indrajit Wadgaonkar & Jia Wei Melvin Lim & Stefano Dal Forno & David Giovanni & Minjun Feng & Senyun Ye & Marco Battiato & Tze Chien Sum, 2023. "Zero-field quantum beats and spin decoherence mechanisms in CsPbBr3 perovskite nanocrystals," Nature Communications, Nature, vol. 14(1), pages 1-7, 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_s41467-019-11251-4. 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.