Synthesis and Physical Properties of Novel Terphenyl Type Ferroelectric Liquid Crystals
摘要:
A new series of optically active compounds have been prepared using 4.4 ''-terphenyldicarboxylic acid and S-2-alcoxypropanols-1. These ace Sm*C, SmA and N* chemically stable - especially with regard to racemization and UV-light compounds with a snail P-S value, high twisting power and left handedness of helix.
dopants for organicphotovoltaic devices. The main idea is to establish the effect of doping on the bulk-heterojunction solar cell properties and characteristics. As a part of basic characterisation, the self-assembling behaviour of three new organic compounds has been determined. The resulting photovoltaic devices with a P3HT:PCBM active layer doped by the designed photosensitive materials were investigated
Ferroelectric Liquid Crystals Containing the Cyano Group
作者:M. Kašpar、H. Sverenyák、V. Hamplová、S. A. Pakhomov、M. Glogarová
DOI:10.1080/10587259508038695
日期:1995.2
A new series of ferroelectric liquid crystals having the cyano group in the mesogenic core and with the terminal group based on O-substitued S-(-)-lactic acid has been synthetized and characterized. The compounds exhibit a broad ferroelectric chiral smectic C mesophase with a high spontaneous polarization.
Vajda; Kaspar; Hamplova, Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals, 2001, vol. 351, p. 279 - 286
作者:Vajda、Kaspar、Hamplova、Vanek、Fodor-Csorba、Bata
DOI:——
日期:——
Chiral tetraphenylethenes as novel dopants for calamitic and discotic liquid crystals
Three series of novelchiraltetraphenylethenes have been prepared: citronellyl‐derived ethers 1a, b, lactate‐derived ethers 2d, g, h, i and lactate‐derived esters 3a–c, e–h. Helical twisting powers (HTPs) were determined for those derivatives of 1–3, which were sufficiently miscible with the nematic host 5CB 13 or the discotic nematic host hexayne 14. For binary solutions HTP values of 5.7–10.4 µm−1
A new series of optically active compounds have been prepared using 4.4 ''-terphenyldicarboxylic acid and S-2-alcoxypropanols-1. These ace Sm*C, SmA and N* chemically stable - especially with regard to racemization and UV-light compounds with a snail P-S value, high twisting power and left handedness of helix.