VO                         2                         /WO                         3                         -Based Hybrid Smart Windows with Thermochromic and Electrochromic Properties

Sang Jin Lee; Dong Soo Choi; So Hee Kang; Woo Seok Yang; Sahn Nahm; Seung Ho Han; Taeyoung Kim

doi:10.1021/acssuschemeng.9b00052

VO ₂ /WO ₃ -Based Hybrid Smart Windows with Thermochromic and Electrochromic Properties

Sang Jin Lee, Dong Soo Choi, So Hee Kang, Woo Seok Yang, Sahn Nahm, Seung Ho Han, Taeyoung Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

83 Citations (Scopus)

Abstract

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 (WO ₃ )-based EC and vanadium oxide (VO ₂ )-based TC cells were integrated into a single device. In hybrid smart windows, the WO ₃ -based EC layer modulates optical transmission in response to electrical voltage, while the VO ₂ -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 transmission in four different optical states depending on its EC reaction and TC behavior. The concept for the integration of EC and TC cells into a single device can pave the way for next-generation multifunctional smart window systems.

Original language	English
Pages (from-to)	7111-7117
Number of pages	7
Journal	ACS Sustainable Chemistry and Engineering
Volume	7
Issue number	7
DOIs	https://doi.org/10.1021/acssuschemeng.9b00052
Publication status	Published - 2019 Apr 1

Keywords

Electrochromic material
Hybrid
Optical transmittance
Smart window applications
Thermochromic material

ASJC Scopus subject areas

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acssuschemeng.9b00052

Cite this

Lee, S. J., Choi, D. S., Kang, S. H., Yang, W. S., Nahm, S., Han, S. H., & Kim, T. (2019). VO ₂ /WO ₃ -Based Hybrid Smart Windows with Thermochromic and Electrochromic Properties ACS Sustainable Chemistry and Engineering, 7(7), 7111-7117. https://doi.org/10.1021/acssuschemeng.9b00052

VO ₂ /WO ₃ -Based Hybrid Smart Windows with Thermochromic and Electrochromic Properties . / Lee, Sang Jin; Choi, Dong Soo; Kang, So Hee et al.
In: ACS Sustainable Chemistry and Engineering, Vol. 7, No. 7, 01.04.2019, p. 7111-7117.

Research output: Contribution to journal › Article › peer-review

Lee, SJ, Choi, DS, Kang, SH, Yang, WS, Nahm, S, Han, SH & Kim, T 2019, ' VO ₂ /WO ₃ -Based Hybrid Smart Windows with Thermochromic and Electrochromic Properties ', ACS Sustainable Chemistry and Engineering, vol. 7, no. 7, pp. 7111-7117. https://doi.org/10.1021/acssuschemeng.9b00052

Lee SJ, Choi DS, Kang SH, Yang WS, Nahm S, Han SH et al. VO ₂ /WO ₃ -Based Hybrid Smart Windows with Thermochromic and Electrochromic Properties ACS Sustainable Chemistry and Engineering. 2019 Apr 1;7(7):7111-7117. doi: 10.1021/acssuschemeng.9b00052

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abstract = " 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 (WO 3 )-based EC and vanadium oxide (VO 2 )-based TC cells were integrated into a single device. In hybrid smart windows, the WO 3 -based EC layer modulates optical transmission in response to electrical voltage, while the VO 2 -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 transmission in four different optical states depending on its EC reaction and TC behavior. The concept for the integration of EC and TC cells into a single device can pave the way for next-generation multifunctional smart window systems.",

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note = "Funding Information: This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) under the Ministry of Trade, Industry and Energy (MOTIE) of the Republic of Korea (Nos. 20173030014180 and 20182020109430) and the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP; No. 2015R1C1A2A01054433). This research was supported by the Nano Material Technology Development Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT and Future Planning (NRF-2016M3A7B4027712). Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

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AU - Han, Seung Ho

AU - Kim, Taeyoung

N1 - Funding Information: This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) under the Ministry of Trade, Industry and Energy (MOTIE) of the Republic of Korea (Nos. 20173030014180 and 20182020109430) and the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP; No. 2015R1C1A2A01054433). This research was supported by the Nano Material Technology Development Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT and Future Planning (NRF-2016M3A7B4027712). Publisher Copyright: © 2019 American Chemical Society.

PY - 2019/4/1

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N2 - 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 (WO 3 )-based EC and vanadium oxide (VO 2 )-based TC cells were integrated into a single device. In hybrid smart windows, the WO 3 -based EC layer modulates optical transmission in response to electrical voltage, while the VO 2 -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 transmission in four different optical states depending on its EC reaction and TC behavior. The concept for the integration of EC and TC cells into a single device can pave the way for next-generation multifunctional smart window systems.

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