Mapping quality and parameters of photovoltaic liquid crystal modulators
Mapping quality and parameters of photovoltaic liquid crystal modulators
Photovoltaic light modulators integrate liquid crystals and solar cells and offer an exciting prospect for autonomous, smart displays and visors. Illumination produces a photovoltage that modifies the liquid crystal alignment and light transmission. However, determining their properties, for example, the voltage dropped across the liquid crystal, different pretilts or anchoring energies, inherent to asymmetric cell designs, poses significant challenges. We have successfully applied to such photovoltaic modulators a new measurement methodology based on wide-area cross-polarized intensity measurements, coupled to an Ericksen-Leslie model. We have implemented it in a versatile optical analyzer, driven by a Matlab graphical user interface.
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Podoliak, Nina
0908b951-00a7-48a5-bc82-631640910b9c
Buchnev, Oleksandr
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D'alessandro, Giampaolo
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Brouckaert, Nicolas
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Heiser, Thomas
c7ab9914-611b-4ded-bd4b-a3524b33f794
Fall, Sadiara
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24 August 2020
Kaczmarek, Malgosia
408ec59b-8dba-41c1-89d0-af846d1bf327
Podoliak, Nina
0908b951-00a7-48a5-bc82-631640910b9c
Buchnev, Oleksandr
60cdb0d2-3388-47be-a066-61b3b396f69d
D'alessandro, Giampaolo
bad097e1-9506-4b6e-aa56-3e67a526e83b
Brouckaert, Nicolas
3a5fc4fe-1d30-4102-9edd-c15d134a5c4b
Heiser, Thomas
c7ab9914-611b-4ded-bd4b-a3524b33f794
Fall, Sadiara
8193d5df-0102-4572-a1f9-fedc61d9359a
Kaczmarek, Malgosia, Podoliak, Nina, Buchnev, Oleksandr, D'alessandro, Giampaolo, Brouckaert, Nicolas, Heiser, Thomas and Fall, Sadiara
(2020)
Mapping quality and parameters of photovoltaic liquid crystal modulators.
Khoo, Iam Choon
(ed.)
In Liquid Crystals XXIV.
vol. 11472,
SPIE..
(doi:10.1117/12.2567640).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Photovoltaic light modulators integrate liquid crystals and solar cells and offer an exciting prospect for autonomous, smart displays and visors. Illumination produces a photovoltage that modifies the liquid crystal alignment and light transmission. However, determining their properties, for example, the voltage dropped across the liquid crystal, different pretilts or anchoring energies, inherent to asymmetric cell designs, poses significant challenges. We have successfully applied to such photovoltaic modulators a new measurement methodology based on wide-area cross-polarized intensity measurements, coupled to an Ericksen-Leslie model. We have implemented it in a versatile optical analyzer, driven by a Matlab graphical user interface.
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Published date: 24 August 2020
Venue - Dates:
SPIE Optics & Photonics 2020, California, San Diego, United States, 2020-08-23 - 2020-08-27
Identifiers
Local EPrints ID: 454547
URI: http://eprints.soton.ac.uk/id/eprint/454547
PURE UUID: 7a3c13e9-5cd2-4986-a53a-be6299bd9562
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Date deposited: 16 Feb 2022 17:30
Last modified: 17 Mar 2024 03:21
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Contributors
Author:
Nina Podoliak
Author:
Oleksandr Buchnev
Author:
Nicolas Brouckaert
Author:
Thomas Heiser
Author:
Sadiara Fall
Editor:
Iam Choon Khoo
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