Polymer Inhibitors Enable >900 cm2 Dynamic Windows Based on Reversible Metal Electrodeposition with High Solar Modulation

Michael McGehee, Michael Strand, Tyler Hernandez, Michael Danner, Andrew Yeang, Nathan Jarvey, Christopher Barile

Research output: Contribution to journalArticlepeer-review

79 Scopus Citations

Abstract

Dynamic windows with adjustable tint give users control over the flow of light and heat to decrease the carbon footprint of buildings and improve the occupants’ comfort. Despite the benefits of dynamic windows, they are rarely deployed in buildings because the existing technology cannot achieve fast and colour-neutral tinting at an agreeable cost. Reversible metal electrodeposition is a promising approach to solve these problems. Here, we demonstrate the use of polymer inhibitors to reversibly deposit metal films with controlled morphology in dynamic windows. The windows that employ the polymer inhibitor can readily tint to below 0.001% visible transmittance in less than 3 min and exhibit high infrared reflectance (>70%), colour-neutral transmittance (C*<5) and an ultrawide range of optical and solar modulation (..delta..Tvis=0.76 and ..delta..SHGC=0.56). The polymer inhibitors also increase the efficiency and improve the durability of the windows and enable construction of >900 cm2 dynamic windows with fast response and excellent uniformity.
Original languageAmerican English
Pages (from-to)546-554
Number of pages9
JournalNature Energy
Volume6
DOIs
StatePublished - 2021

NREL Publication Number

  • NREL/JA-5900-80104

Keywords

  • electrodeposition
  • electrodes
  • modulation
  • polymer films

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