Ferroelectric Particles in Nematic Liquid Crystals with Soft Anchoring
A theoretical evaluation of the electric Freedericksz transition threshold and saturation field is proposed for a liquid crystals composite with ferroelectric particles. Existing models consider a strong anchoring of nematic molecules on the glass support of the cell, but in this paper a soft molecu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/4/1166 |
| _version_ | 1797395659855233024 |
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| author | Cristina Cirtoaje |
| author_facet | Cristina Cirtoaje |
| author_sort | Cristina Cirtoaje |
| collection | DOAJ |
| description | A theoretical evaluation of the electric Freedericksz transition threshold and saturation field is proposed for a liquid crystals composite with ferroelectric particles. Existing models consider a strong anchoring of nematic molecules on the glass support of the cell, but in this paper a soft molecular anchoring of molecules on the glass support and also on the ferroelectric nanoparticle’s surface is assumed. Thus, a finite saturation field was obtained in agreement with real systems. Calculations are made for planar configuration of positive dielectric anisotropy liquid crystals. The results are compared with data obtained on similar systems from different publications and the differences are discussed. |
| first_indexed | 2024-03-09T00:38:43Z |
| format | Article |
| id | doaj.art-a6a299879e734ede80c4fcc8f41a11ff |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T00:38:43Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-a6a299879e734ede80c4fcc8f41a11ff2023-12-11T18:01:29ZengMDPI AGMolecules1420-30492021-02-01264116610.3390/molecules26041166Ferroelectric Particles in Nematic Liquid Crystals with Soft AnchoringCristina Cirtoaje0Department of Physics, University Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, RomaniaA theoretical evaluation of the electric Freedericksz transition threshold and saturation field is proposed for a liquid crystals composite with ferroelectric particles. Existing models consider a strong anchoring of nematic molecules on the glass support of the cell, but in this paper a soft molecular anchoring of molecules on the glass support and also on the ferroelectric nanoparticle’s surface is assumed. Thus, a finite saturation field was obtained in agreement with real systems. Calculations are made for planar configuration of positive dielectric anisotropy liquid crystals. The results are compared with data obtained on similar systems from different publications and the differences are discussed.https://www.mdpi.com/1420-3049/26/4/1166freedericksz transitionferroelectric naonoparticle |
| spellingShingle | Cristina Cirtoaje Ferroelectric Particles in Nematic Liquid Crystals with Soft Anchoring Molecules freedericksz transition ferroelectric naonoparticle |
| title | Ferroelectric Particles in Nematic Liquid Crystals with Soft Anchoring |
| title_full | Ferroelectric Particles in Nematic Liquid Crystals with Soft Anchoring |
| title_fullStr | Ferroelectric Particles in Nematic Liquid Crystals with Soft Anchoring |
| title_full_unstemmed | Ferroelectric Particles in Nematic Liquid Crystals with Soft Anchoring |
| title_short | Ferroelectric Particles in Nematic Liquid Crystals with Soft Anchoring |
| title_sort | ferroelectric particles in nematic liquid crystals with soft anchoring |
| topic | freedericksz transition ferroelectric naonoparticle |
| url | https://www.mdpi.com/1420-3049/26/4/1166 |
| work_keys_str_mv | AT cristinacirtoaje ferroelectricparticlesinnematicliquidcrystalswithsoftanchoring |