Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • News & Views
  • Published:


Excitons surf the waves

Directional control of the diffusion of excitons is desired for excitonic devices, but being neutrally charged they can’t be transported by applying a bias voltage as for conventional electronic transport. It is now shown that surface acoustic waves can direct the flux of excitons over micrometre distances, even at room temperature.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: Schematic representation of a device for surface acoustic wave-driven transport of excitons in a WSe2 monolayer.


  1. Unuchek, D. et al. Nature 560, 340–344 (2018).

    Article  ADS  Google Scholar 

  2. Unuchek, D. et al. Nat. Nanotechnol. 14, 1104–1109 (2019).

    Article  ADS  Google Scholar 

  3. Javey, A. et al. ACS Nano 14, 13433–13440 (2020).

    Article  Google Scholar 

  4. Castellanos-Gomez, A. et al. Nano Lett 13, 5361–5366 (2013).

    Article  ADS  Google Scholar 

  5. Rosati, R. et al. Nat. Commun. 12, 7221 (2021).

    Article  ADS  Google Scholar 

  6. Dirnberger, F. et al. Sci. Adv 7, eabj3066 (2021).

    Article  Google Scholar 

  7. Fandan, R. et al. Nano Lett 20, 402–409 (2020).

    Article  ADS  Google Scholar 

  8. Rudolph, J., Hey, R. & Santos, P. V. Phys. Rev. Lett. 99, 047602 (2007).

    Article  ADS  Google Scholar 

  9. Datta, K. et al. Nat. Photon. (2022).

    Article  Google Scholar 

  10. De Sanctis, A., Amit, I., Hepplestone, S. P., Craciun, M. F. & Russo, S. Nat. Commun. 9, 1652 (2018).

Download references

Author information

Authors and Affiliations


Corresponding authors

Correspondence to Jorge Quereda or Andres Castellanos-Gomez.

Ethics declarations

Competing interests

The authors declare no competing interests.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Quereda, J., Castellanos-Gomez, A. Excitons surf the waves. Nat. Photon. 16, 179–180 (2022).

Download citation

  • Published:

  • Issue Date:

  • DOI:


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing