Nanolayers of polypyromellitimide aligning surfaces of liquid crystals for organic electronics devices
| Autor: | Eugene P. Pozhidaev, A. A. Zhukov, I. N. Kompanets, E. S. Kuz’menko |
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| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Organic electronics Materials science business.industry General Engineering Nanotechnology Substrate (electronics) Polymer Condensed Matter Physics Semiconductor chemistry Liquid crystal Flexible display General Materials Science Nanometre Composite material business Polyimide |
| Zdroj: | Nanotechnologies in Russia. 5:123-129 |
| ISSN: | 1995-0799 1995-0780 |
| DOI: | 10.1134/s199507801001012x |
| Popis: | The structure, thermodynamical, and optical properties of 8–23-nm-thick polypyromellitimide nanolayers obtained on a semiconductor surface by spin-coating of prepolymer solutions and their consequent imidization at the temperatures up to 453 K have been investigated. It is found that decreasing the nanolayers’ thickness leads to a sharp decrease in their temperature and imidization time. It is shown that polyimide layers thinner than 10 nm on a semiconductor surface are not continuous; instead, they are self-organizing discontinuous coverings with typical sizes of polymer islets in a substrate plane of around hundreds of nanometers in size. The possibility of using the above-mentioned continuous and discontinuous nanolayers of a semiconductor surface as aligning surfaces for liquid crystals to be used in the production of flexible displays has been proven. |
| Databáze: | OpenAIRE |
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