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5 October 2023 Self-powered dynamic glazing based on twisted-nematic liquid crystals and organic photovoltaic layers
Thomas Heiser, Sadiara Fall, Yuhan Zhong, Jing Wang, Thomas Ducatel, Martin Brinkmann, Nicolas Leclerc, Nicolas Brouckaert, Thomas Regrettier, Olzhas A. Ibraikulov, Malgosia Kaczmarek
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Proceedings Volume PC12658, Liquid Crystals XXVII; PC126580I (2023) https://doi.org/10.1117/12.2676830
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States
Abstract
Photovoltaic spatial light modulators combine liquid crystals with organic photovoltaic layers to achieve self-activated transmittance modulation. Short response times, energy-efficient operation, and user-controllable sensitivity make these devices attractive for many applications. We will show that the transmittance modulation is highly reversible and can be stable for hours under light exposure. Modulators based on new organic materials, selected to enhance the transmittance of the clear state and device sensitivity, will be presented. Results illustrating selective transmittance modulation in the near-infrared to control solar heating, while harvesting near-UV light will be shown. Remaining challenges and development possibilities will be outlined.
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Thomas Heiser, Sadiara Fall, Yuhan Zhong, Jing Wang, Thomas Ducatel, Martin Brinkmann, Nicolas Leclerc, Nicolas Brouckaert, Thomas Regrettier, Olzhas A. Ibraikulov, and Malgosia Kaczmarek "Self-powered dynamic glazing based on twisted-nematic liquid crystals and organic photovoltaic layers", Proc. SPIE PC12658, Liquid Crystals XXVII, PC126580I (5 October 2023); https://doi.org/10.1117/12.2676830
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KEYWORDS
Liquid crystals
Organic photovoltaics
Modulation
Photovoltaics
Transmittance
Spectral response
Thin film solar cells
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