Registration Number
0221U106590,
0120U104106
, R & D reports
Title
Flexible Printable Humidity Sensing Elements on Lyotropic Chromonic Liquid Crystals.
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Head
Nazarenko Vassili G., Доктор фізико-математичних наук
Registration Date
14-12-2021
Organization
Institute of Physics of National Academy of Sciences of Ukraine
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Preserving structural integrity of organic materials in manufacturing and exploitation of electronic devices on flexible large-area substrates was the primary target of the current proposal. We proposed lyotropic chromonic liquid crystals (LCLCs) as ideally suited for printing over flexible substrates, because their aligned structure is shaped by weak noncovalent forces.
In result of the project it was determined how to control the aggregation and self-organization of lyotropic chromonic liquid crystal (LHRC) molecules in solutions, single-layer and multilayer films as well as to adapt macroscopic semiconductor properties for use in humidity sensors. Flexible humidity sensors with a response time of electric current to high humidity less than 100 ms have been developed; recovery time is about 10 s, current fluctuations exceed three orders of magnitude within 40% -90% humidity change. A feature of the proposed approach is that the sensitive element can be printed on a flexible substrate. Such sensor devices have numerous technological advantages, such as ease of production / integration, as well as a corresponding reduction in costs.
Product Description
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Buluy Oleksandr Grygorovych
Vakhnin Olexandr Yurievych
Kadashchuk Andrey Konstantynovych
Kurioz Yuriy Ivanovych
Marchenko Oleksandr Anatolievych
Nazarenko Vassili Gennadievych
Perhamenschyk Victor Mykhailovych
Sеnenko Anton Ihorovych
Tereshchenko Oleksandr Grygorovych
Cherepanov Vsevolod V
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2021-12-14
