TY - JOUR
T1 - ‘Smart’ light-reflective windows based on temperature responsive twisted nematic liquid crystal polymers
AU - Kragt, A.J.J. (Stijn)
AU - Loonen, Roel C.G.M.
AU - Broer, Dirk J.
AU - Debije, Michael G.
AU - Schenning, Albert P.H.J.
PY - 2021/6/15
Y1 - 2021/6/15
N2 - 'Smart' windows which reversibly increase their reflectivity upon heating are attracting considerable attention as devices for maintaining comfortable indoor environmental conditions. In this work, twisted nematic semi‐interpenetrating liquid crystal networks which lose their order upon heating are sandwiched between reflective linear polarizers. This 'smart' window reversibly decreases its transmission from about 50–10% over a wavelength range between 400 and 1100 nm upon heating, resulting in the window becoming darker and reflecting more light. This 'smart' window is potentially interesting for energy saving window applications where variation between privacy and visible light transparency states is required.
AB - 'Smart' windows which reversibly increase their reflectivity upon heating are attracting considerable attention as devices for maintaining comfortable indoor environmental conditions. In this work, twisted nematic semi‐interpenetrating liquid crystal networks which lose their order upon heating are sandwiched between reflective linear polarizers. This 'smart' window reversibly decreases its transmission from about 50–10% over a wavelength range between 400 and 1100 nm upon heating, resulting in the window becoming darker and reflecting more light. This 'smart' window is potentially interesting for energy saving window applications where variation between privacy and visible light transparency states is required.
KW - 'smart' windows
KW - light reflective devices
KW - liquid crystals
KW - semi-interpenetrating networks
KW - temperature responsive polymers
UR - http://www.scopus.com/inward/record.url?scp=85101195380&partnerID=8YFLogxK
U2 - 10.1002/pol.20210008
DO - 10.1002/pol.20210008
M3 - Article
VL - 59
SP - 1278
EP - 1284
JO - Journal of Polymer Science
JF - Journal of Polymer Science
SN - 0022-3832
IS - 12
ER -