Temat: 61.30.Gd - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Photoelectrochemical Cell with Dye Molecules Oriented in Nematic Liquid Crystal
Autorzy:: Naser, N. S.
Planner, A.
Frąckowiak, D.
Powiązania:: https://bibliotekanauki.pl/articles/1967861.pdf
Data publikacji:: 1997-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.30.Gd
42.79.Kr
42.70.Dí
Opis:: A photoelectrochemical cell consisting of two semiconducting electrodes covered by orienting SiO$\text{}_{x}$ layers and filled with merocyanine solutions in nematic liquid crystal was constructed. Dye molecules were oriented as a result of the guest-host effect. Generation of photocurrent by two components of polarized light gives different values of photocurrent amplitude but anisotropy of photocurrent is lower than that of absorption in the region of a free base form of dye. It is explained by dominant participation of a protonated form of dye in the photocurrent generation. The last form exhibits a lower degree of orientation than the free base form of dye.
Źródło:: Acta Physica Polonica A; 1997, 92, 3; 535-542
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: An optical study to estimate orientational order parameter on some benzylideneaminophenylbenzoate liquid crystals
Autorzy:: Subhan, C.
Jeevan Kumar, R.
Panduranga, P.
Jayashreeand, B.
Fakruddin, K.
Powiązania:: https://bibliotekanauki.pl/articles/1070607.pdf
Data publikacji:: 2016-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.79.Kr
78.15.+e
61.30.Gd
Opis:: The birefringence technique has been used for the evaluation of order parameter in the nematic phase along with the density measurements, which are needed for the calculation of molecular polarizabilities of the compounds. Birefringence and density studies have been carried out on the three liquid crystalline compounds viz.(1) (E)-4-((4-hexyloxy)benzylidene)amino)phenyl 4-butoxybenzoate(2) (E)-4-((4-hexyloxy)benzylidene)amino)phenyl 4-(decycloxy)benzoate and(3) (E)-4-((4-hexyloxy)benzylidene)amino)phenyl 4-(tridecycloxy)benzoate.Using birefringence and density data the molecular polarizabilities are evaluated by two different internal field models due to Vuks and Neugebauer. The mean molecular polarizability of the compounds is also evaluated by employing modified Lippincott δ-function model. The results reveal that both the theoretical and experimental values obtained are very near to each other.
Źródło:: Acta Physica Polonica A; 2016, 129, 3; 284-288
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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