VO2/WO3-Based Hybrid Smart Windows with Thermochromic and Electrochromic Properties

By Sang Jin Lee, D. Choi, So-hee Kang, W. Yang, S. Nahm, S. Han, TaeYoung Kim. ACS Sustainable Chemistry and Engineering, 2019

138 citations recorded by the source corpus.

The integration of electrochromic (EC) and thermochromic (TC) systems is important for realizingmultifunctional smart windows, which can adaptively control light transmittance and solar energy in response to diverse external stimuli. In this study, we developed an all-solid-state multifunctional smart window, in which tungsten oxide (WO3)-based EC and vanadium oxide (VO2)-based TC cells were integrated into a single device. In hybrid smart windows, the WO3-based EC layer modulates optical transmission in response to electrical voltage, while the VO2-based TC layer regulates solar energy transmission responding to the surrounding temperature. Therefore, such windows can control optical transmission and solar energy transmission  in response to an electric stimulus and temperature change simultaneously or independently, allowing for a selective modulation of light in the visible and near-infrared regions. We demonstrated the viability of the proposed integrated smart window system by varying its optical tra...

Subfields: Electrical and Electronic Engineering, Polymers and Plastics, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/412f8c5fe7a6c7d8dd02405fd129a1864b4448aa