Photo-optical modulation of energy-saving electrochromic windows for high light transmission control

Jinbo Kim; Cheolhyun Cho; Hwandong Jang; Eunkyoung Kim

doi:10.1117/12.2615277

Photo-optical modulation of energy-saving electrochromic windows for high light transmission control

Jinbo Kim, Cheolhyun Cho, Hwandong Jang, Eunkyoung Kim

Department of Chemical and Biomolecular Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In the quest to reduce energy consumption, smart windows present a core solution to reduce the massive energy loss through windows. Smart windows can be designed on the basis of electrochromic (EC) principles, which offer simple integration mechanisms for color switching, optical sensing, energy harvesting, and energy storage. Photo-optical modulation of the EC window was explored using a thin film of polymer and a redox active electrolyte layer along with a dye-doped photoanode. The integrated photo-electrochromic window (PECW) showed high transparency over 78 % at bleached state but blocked 97 % of light at colored state. Furthermore, the PECW was capable of solar energy harvesting, allowing self-coloration under sunlight. The photo-optical modulation mechanism, material combination, and optimization of an autonomous PECW will be discussed.

Original language	English
Title of host publication	Organic Photonic Materials and Devices XXIV
Editors	William M. Shensky, Ileana Rau, Okihiro Sugihara
Publisher	SPIE
ISBN (Electronic)	9781510648678
DOIs	https://doi.org/10.1117/12.2615277
Publication status	Published - 2022
Event	Organic Photonic Materials and Devices XXIV 2022 - Virtual, Online Duration: 2022 Feb 20 → 2022 Feb 24

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11998
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Organic Photonic Materials and Devices XXIV 2022
City	Virtual, Online
Period	22/2/20 → 22/2/24

Bibliographical note

Funding Information:
This research was supported by a National Research Foundation (NRF) grant funded by Korean government (Ministry of Science, ICT & Future Planning, MSIP) through the Global Research Lab (GRL: 2016K1A1A2912753) and Creative Materials Discovery Program (2018M3D1A1058536). This research was supported by AOARD, Air Force Office of Scientific Research (AFOSR) under the Grant number FA9550‐19‐S‐0003.

Publisher Copyright:
© 2022 SPIE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1117/12.2615277

Cite this

Kim, J., Cho, C., Jang, H., & Kim, E. (2022). Photo-optical modulation of energy-saving electrochromic windows for high light transmission control. In W. M. Shensky, I. Rau, & O. Sugihara (Eds.), Organic Photonic Materials and Devices XXIV Article 1199807 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11998). SPIE. https://doi.org/10.1117/12.2615277

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title = "Photo-optical modulation of energy-saving electrochromic windows for high light transmission control",

abstract = "In the quest to reduce energy consumption, smart windows present a core solution to reduce the massive energy loss through windows. Smart windows can be designed on the basis of electrochromic (EC) principles, which offer simple integration mechanisms for color switching, optical sensing, energy harvesting, and energy storage. Photo-optical modulation of the EC window was explored using a thin film of polymer and a redox active electrolyte layer along with a dye-doped photoanode. The integrated photo-electrochromic window (PECW) showed high transparency over 78 % at bleached state but blocked 97 % of light at colored state. Furthermore, the PECW was capable of solar energy harvesting, allowing self-coloration under sunlight. The photo-optical modulation mechanism, material combination, and optimization of an autonomous PECW will be discussed.",

author = "Jinbo Kim and Cheolhyun Cho and Hwandong Jang and Eunkyoung Kim",

note = "Funding Information: This research was supported by a National Research Foundation (NRF) grant funded by Korean government (Ministry of Science, ICT & Future Planning, MSIP) through the Global Research Lab (GRL: 2016K1A1A2912753) and Creative Materials Discovery Program (2018M3D1A1058536). This research was supported by AOARD, Air Force Office of Scientific Research (AFOSR) under the Grant number FA9550‐19‐S‐0003. Publisher Copyright: {\textcopyright} 2022 SPIE.; Organic Photonic Materials and Devices XXIV 2022 ; Conference date: 20-02-2022 Through 24-02-2022",

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Kim, J, Cho, C, Jang, H & Kim, E 2022, Photo-optical modulation of energy-saving electrochromic windows for high light transmission control. in WM Shensky, I Rau & O Sugihara (eds), Organic Photonic Materials and Devices XXIV., 1199807, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11998, SPIE, Organic Photonic Materials and Devices XXIV 2022, Virtual, Online, 22/2/20. https://doi.org/10.1117/12.2615277

Photo-optical modulation of energy-saving electrochromic windows for high light transmission control. / Kim, Jinbo; Cho, Cheolhyun; Jang, Hwandong et al.
Organic Photonic Materials and Devices XXIV. ed. / William M. Shensky; Ileana Rau; Okihiro Sugihara. SPIE, 2022. 1199807 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11998).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - In the quest to reduce energy consumption, smart windows present a core solution to reduce the massive energy loss through windows. Smart windows can be designed on the basis of electrochromic (EC) principles, which offer simple integration mechanisms for color switching, optical sensing, energy harvesting, and energy storage. Photo-optical modulation of the EC window was explored using a thin film of polymer and a redox active electrolyte layer along with a dye-doped photoanode. The integrated photo-electrochromic window (PECW) showed high transparency over 78 % at bleached state but blocked 97 % of light at colored state. Furthermore, the PECW was capable of solar energy harvesting, allowing self-coloration under sunlight. The photo-optical modulation mechanism, material combination, and optimization of an autonomous PECW will be discussed.

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Photo-optical modulation of energy-saving electrochromic windows for high light transmission control

Abstract

Publication series

Conference

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

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