scispace - formally typeset
Journal ArticleDOI

Diskotische Flüssigkristalle: Von der maßgeschneiderten Synthese zur Kunststoffelektronik

Reads0
Chats0
TLDR
In this article, an overview of columnar Mesophasentypen and Charakterisierungs methoden columnarer Flussigkristalle folgen ausgewahlte Beispiele aus den Hauptklassen columnerer Mesogene unter besonderer Berucksichtigung effizienter Syntheseverfahren, mesomorpher Eigenschaften and der fur Anwendungen relevanten physikalischen EigENSchaften.
Abstract
Die meisten Menschen verbinden mit dem Begriff Flussigkristalle sofort die Displays von Laptop-Computern, Mobiltelefonen, Digitalkameras und anderen elektronischen Geraten. Im Unterschied zu ihren stabchenformigen (calamitischen) Verwandten, die erstmals 1907 von Vorlander beschrieben wurden, bieten aber die 1977 von Chandrasekhar entdeckten scheibenformigen (diskotischen) Flussigkristalle andere vielversprechende Verwendungsmoglichkeiten. Ihre einzigartige Anordnung in columnaren Mesophasen macht sie zu idealen Kandidaten fur molekulare Drahte in vielen optischen und elektronischen Geraten, beispielsweise in Photokopierern, Laserdruckern, Solarzellen, organischen Leuchtdioden und Feldeffekttransistoren oder zur holographischen Datenspeicherung. Einer Ubersicht uber die verschiedenen Mesophasentypen und Charakterisierungsmethoden columnarer Flussigkristalle folgen ausgewahlte Beispiele aus den Hauptklassen columnarer Mesogene unter besonderer Berucksichtigung effizienter Syntheseverfahren, mesomorpher Eigenschaften und der fur Anwendungen relevanten physikalischen Eigenschaften der Flussigkristalle. Abschliesend werden Anwendungsbeispiele und Perspektiven fur einen Einsatz in den Materialwissenschaften und der molekularen Elektronik vorgestellt.

read more

Citations
More filters
Journal ArticleDOI

Development of structural complexity by liquid-crystal self-assembly.

TL;DR: New exciting soft-matter structures distinct from the usually observed nematic, smectic, and columnar phases are presented, including multicompartment and cellular structures, periodic and quasiperiodic arrays of spheres, and new emergent properties, such as ferroelctricity and spontaneous achiral symmetry-breaking.
Journal ArticleDOI

Phosphorescent, Terdentate, Liquid‐Crystalline Complexes of Platinum(II): Stimulus‐Dependent Emission

TL;DR: A highly efficient platinum(II) luminophore is rendered liquid crystalline using a simple and flexible synthetic approach that allows monomer emission when the characteristic for the material is exciplex-like emission.
Journal ArticleDOI

Liquid-crystalline ordering as a concept in materials science: from semiconductors to stimuli-responsive devices.

TL;DR: The concept of liquid-crystalline order is illustrated in this Review and emphasis will be placed on synthetic strategies for novel classes of LC materials, and the design and fabrication of active devices.
Journal ArticleDOI

Palladium-Assisted “Aromatic Metamorphosis” of Dibenzothiophenes into Triphenylenes†

TL;DR: Two new palladium-catalyzed reactions of aromatic sulfur compounds enabled the conversion of dibenzothiophenes into triphenylenes in four steps in a tailor-made fashion in satisfactory overall yields.
References
More filters
Journal ArticleDOI

Silica-based mesoporous organic-inorganic hybrid materials.

TL;DR: An overview of the preparation, properties, and potential applications of mesoporous organic-inorganic hybrid materials in the areas of catalysis, sorption, chromatography, and the construction of systems for controlled release of active compounds, as well as molecular switches, are given.
Journal ArticleDOI

Self-Organized Discotic Liquid Crystals for High-Efficiency Organic Photovoltaics

TL;DR: Self-organization of liquid crystalline and crystalline-conjugated materials has been used to create, directly from solution, thin films with structures optimized for use in photodiodes, demonstrating that complex structures can be engineered from novel materials by means of simple solution-processing steps and may enable inexpensive, high-performance, thin-film photovoltaic technology.
Journal ArticleDOI

Perylene bisimide dyes as versatile building blocks for functional supramolecular architectures

TL;DR: Perylene bisimide dyes and their organization into supramolecular architectures through hydrogen-bonding, metal ion coordination and pi-pi-stacking is discussed; further self-assembly leading to nano- and meso-scopic structures and liquid-crystalline compounds is also addressed.
Journal ArticleDOI

Generalized synthesis of periodic surfactant/inorganic composite materials

TL;DR: In this article, a generalized approach to the synthesis of periodic mesophases of metal oxides and cationic or anionic surfactants under a range of pH conditions is presented.
Related Papers (5)