An aqueous electrochromic device has been developed that enables reversible tuning of its thermal emissivity with minimal electrical power input. The device allows for all-season radiative thermoregulation, leading towards year-round energy savings for buildings.
This is a preview of subscription content, access via your institution
Access options
Access Nature and 54 other Nature Portfolio journals
Get Nature+, our best-value online-access subscription
$29.99 per month
cancel any time
Subscribe to this journal
Receive 12 digital issues and online access to articles
$119.00 per year
only $9.92 per issue
Rent or buy this article
Get just this article for as long as you need it
$39.95
Prices may be subject to local taxes which are calculated during checkout

References
International Energy Agency. Buildings (IEA, 2022); https://www.iea.org/reports/buildings. A report on the energy consumption and emissions associated with the operation of buildings.
Wang, S. et al. Scalable thermochromic smart windows with passive radiative cooling regulation. Science 374, 1501–1504 (2021). This paper reports a VO2 mid-IR thermochromic window.
Tang, K. et al. Temperature-adaptive radiative coating for all-season household thermal regulation. Science 374, 1504–1509 (2021). This work reports a WxV1–xO2 mid-IR thermochromic coating for opaque building envelopes.
Strand, M. T. et al. Polymer inhibitors enable >900 cm2 dynamic windows based on reversible metal electrodeposition with high solar modulation. Nat. Energy 6, 546–554 (2021). This work reports an electrochromic window for solar heat regulation based on an aqueous Cu electrolyte.
Rao, Y. et al. Ultra-wideband transparent conductive electrode for electrochromic synergistic solar and radiative heat management. ACS Energy Lett. 6, 3906–3915 (2021). This article presents an ultra-wideband transparent conductive electrode that enables solar and mid-IR electrochromism.
Li, X. et al. Integration of daytime radiative cooling and solar heating for year-round energy saving in buildings. Nat. Commun. 11, 6101 (2020). This paper reports the energy saving capability of integrating daytime sub-ambient radiative cooling and solar heating.
Additional information
Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
This is a summary of: Sui, C. et al. Dynamic electrochromism for all-season radiative thermoregulation. Nat. Sustain. https://doi.org/10.1038/s41893-022-01023-2 (2023).
Rights and permissions
About this article
Cite this article
Radiative electrochromism for energy-efficient buildings. Nat Sustain (2023). https://doi.org/10.1038/s41893-022-01030-3
Published:
DOI: https://doi.org/10.1038/s41893-022-01030-3