Versatile characterisation of photovoltaic and optically thin liquid crystal systems

Malgosia Kaczmarek; Giampaolo D'Alessandro; Nicolas Brouckaert; Denitsa Bankova; Oleksandr Buchnev; Thomas Heiser

doi:10.1117/12.3000917

13 March 2024 Versatile characterisation of photovoltaic and optically thin liquid crystal systems

Malgosia Kaczmarek, Giampaolo D'Alessandro, Nicolas Brouckaert, Denitsa Bankova, Oleksandr Buchnev, Thomas Heiser

Proceedings Volume PC12907, Emerging Liquid Crystal Technologies XIX; PC129070D (2024) https://doi.org/10.1117/12.3000917
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We present a versatile characterisation of liquid crystal devices, including those integrated with organic photovoltaics. Photovoltaic thin film serves as an alignment layer and also generates an electric field under illumination that reorients liquid crystals for self-activated or autonomous operation. Apart polar alignment angle, anchoring energy, thickness uniformity, the photovoltaic properties, such as the photovoltage generated and photoconductivity, are captured and the map of the spatial changes of the parameters can be created. The method is applicable to other liquid crystal systems, such as doped liquid crystals and optically thin cells, with phase lag as small as π.

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Citation Download Citation

Malgosia Kaczmarek, Giampaolo D'Alessandro, Nicolas Brouckaert, Denitsa Bankova, Oleksandr Buchnev, and Thomas Heiser "Versatile characterisation of photovoltaic and optically thin liquid crystal systems", Proc. SPIE PC12907, Emerging Liquid Crystal Technologies XIX, PC129070D (13 March 2024); https://doi.org/10.1117/12.3000917

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