TY - DATA
T1 - Data underlying the publication: Thermochromic Hydrogel with High Transmittance Modulation and Fast Response for Flexible Smart Windows
PY - 2025/09/05
AU - Fan Jiang
AU - Kui Yu
AU - Roland Kieffer
AU - Djanick de Jong
AU - Richard M. Parker
AU - Silvia Vignolini
AU - Marie-Eve Aubin-Tam
UR - 
DO - 10.4121/87510030-e06a-42fc-831b-9b8e01470bca.v1
KW - Smart window
KW - Thermochromism
KW - Hydrogel
KW - Thermo-Responsive Polymer
N2 - <p>Growing environmental concerns are driving demand for energy-saving strategies. Thermochromic smart windows offer a practical solution by passively regulating sunlight in homes and offices. Despite recent progress, current technologies still face challenges in achieving the thermal durability and mechanical robustness necessary for long-term use, combined with a rapid transition below 30°C. Here we report a thermochromic hydrogel assembled from poly(N,N-dimethylaminoethyl methacrylate) and 2,2,2-trifluoroethyl methacrylate that produces flexible films on a large scale. This hydrogel rapidly (∆t ≈ 3 s) and reversibly becomes turbid above a tunable transition temperature spanning the human comfort zone, and maintains its thermochromic property even when mechanically stretched with 500% strain. The film’s high modulation of solar transmittance (70.6%) and luminous transmittance (85.7%) enables efficient sunlight screening in hot weather and clear vision in cool weather. Such ‘smart windows’ remain stable for over 10,000 heating/cooling cycles. These combined features indicate the hydrogel suitability for applications ranging from heat-modulating smart windows (architectural, automotive, etc.) to passive temperature indicators and even wearables.</p>
ER -