|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Recent Developments in Biological, Structural and Functional Thin Films & Coatings
||Tunable Optical Constants and Solar Selectivity of Multilayer Films for Smart Window Applications
||P. Dubey, C. D. Grijalva, C. V. Ramana
|On-Site Speaker (Planned)
Buildings consume nearly half of the global energy while contributing >30% of CO2 emissions. Energy efficiency in buildings can be achieved through “smart windows,” which can control the lighting, radiation, energy efficiency, and human comfort. In this work, nano-layered, multilayered films consisting of WO3(dielectric)/Ag(metal)/HfO2(dielectric) with controlled chemistry were demonstrated for efficient utilization of solar energy. The effect of Ag thickness [Ag(t)] on the performance of WO3/Ag/HfO2-based D/M/D multilayered films made by electron-beam deposition onto silicon and glass substrates has been evaluated. Efforts were made to understand the effect of Ag(t) on the structure, morphology, mechanical durability and optical behavior of the D/M/D multilayered films. The D/M/D/ films with M=Ag(t)≈25 nm exhibit maximum transmittance (75 %) in the visible region while enhanced reflectance (≥95%) is demonstrated in the infrared region. The optical, electrical and mechanical responses suggest possible integration of these WO3/Ag/HfO2-based DMD films for smart window applications with enhanced performance.
||Planned: Supplemental Proceedings volume