TY - JOUR
T1 - Vanadium dioxide nanogrid films for high transparency smart architectural window applications
AU - Liu, Chang
AU - Balin, Igal
AU - Magdassi, Shlomo
AU - Abdulhalim, Ibrahim
AU - Long, Yi
N1 - Publisher Copyright:
© 2015 Optical Society of America.
PY - 2015/2/9
Y1 - 2015/2/9
N2 - This study presents a novel approach towards achieving high luminous transmittance (Tlum) for vanadium dioxide (VO2) thermochromic nanogrid films whilst maintaining the solar modulation ability (ΔTsol). The perforated VO2-based films employ orderly-patterned nano-holes, which are able to favorably transmit visible light dramatically but retain large near-infrared modulation, thereby enhancing ΔTsol. Numerical optimizations using parameter search algorithms have implemented through a series of Finite Difference Time Domain (FDTD) simulations by varying film thickness, cell periodicity, grid dimensions and variations of grid arrangement. The best performing results of Tlum (76.5%) and ΔTsol (14.0%) are comparable, if not superior, to the results calculated from nanothermochromism, nanoporosity and biomimic nanostructuring. It opens up a new approach for thermochromic smart window applications.
AB - This study presents a novel approach towards achieving high luminous transmittance (Tlum) for vanadium dioxide (VO2) thermochromic nanogrid films whilst maintaining the solar modulation ability (ΔTsol). The perforated VO2-based films employ orderly-patterned nano-holes, which are able to favorably transmit visible light dramatically but retain large near-infrared modulation, thereby enhancing ΔTsol. Numerical optimizations using parameter search algorithms have implemented through a series of Finite Difference Time Domain (FDTD) simulations by varying film thickness, cell periodicity, grid dimensions and variations of grid arrangement. The best performing results of Tlum (76.5%) and ΔTsol (14.0%) are comparable, if not superior, to the results calculated from nanothermochromism, nanoporosity and biomimic nanostructuring. It opens up a new approach for thermochromic smart window applications.
UR - http://www.scopus.com/inward/record.url?scp=84922784380&partnerID=8YFLogxK
U2 - 10.1364/OE.23.00A124
DO - 10.1364/OE.23.00A124
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AN - SCOPUS:84922784380
SN - 1094-4087
VL - 23
SP - A124-A132
JO - Optics Express
JF - Optics Express
IS - 3
ER -