http://www.cnr.it/ontology/cnr/individuo/prodotto/ID167297
Electrically controlled defects at a liquid crystal-polyimide interface (Articolo in rivista)
- Type
- Label
- Electrically controlled defects at a liquid crystal-polyimide interface (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
Ciuchi, F; Giocondo, M; Barberi, R (2008)
Electrically controlled defects at a liquid crystal-polyimide interface
in Liquid crystals (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Ciuchi, F; Giocondo, M; Barberi, R (literal)
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- Rivista
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- ISI Web of Science (WOS) (literal)
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- \"[Ciuchi, F.; Giocondo, M.; Barberi, R.] Univ Calabria, Dept Phys, LiCryl Reg Liquid Crystal Kab, CNR,INFM,CEMIF CAL Excellence Ctr, I-87036 Arcavacata Di Rende, CS, Italy (literal)
- Titolo
- Electrically controlled defects at a liquid crystal-polyimide interface (literal)
- Abstract
- We report results on the effect of introducing a small quantity of oligomer particles inside a liquid crystal (LC) display. We observe a dramatic change in the properties of the LC-substrate interface. Upon applying an electric field, a pi-wall defect network appears that is stable in the absence of further electric perturbation but can be erased by a suitable pulse in a well-defined range of temperature and frequency. The appearance of the defects and their dimensions depend on the cell age, i.e. on the time required by the guest to deposit on the surface. Hypotheses on the phenomenon are reported. (literal)
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