title: Vanadium dioxide nanogrid films for high transparency smart architectural window applications.
abstract: This study presents a novel approach towards achieving high luminous transmittance (T(lum)) for vanadium dioxide (VO(2)) thermochromic nanogrid films whilst maintaining the solar modulation ability (ΔT(sol)). The perforated VO(2)-based films employ orderly-patterned nano-holes, which are able to favorably transmit visible light dramatically but retain large near-infrared modulation, thereby enhancing ΔT(sol). 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 T(lum) (76.5%) and ΔT(sol) (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.
authors.forename: Chang
authors.initials: C
authors.lastname: Liu
authors.forename: Igal
authors.initials: I
authors.lastname: Balin
authors.forename: Shlomo
authors.initials: S
authors.lastname: Magdassi
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Abdulhalim
authors.forename: Yi
authors.initials: Y
authors.lastname: Long