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Journal ArticleDOI

Recent developments in the chemistry of triphenylene-based discotic liquid crystals

Sandeep Kumar
- 01 Aug 2004 - 
- Vol. 31, Iss: 8, pp 1037-1059
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TLDR
More than 500 triphenylene derivatives have been synthesized to explore the possibilities of one-dimensional charge carrier systems useful in electrical conduction, photoconduction, electroluminescence, photovoltaic solar cells, gas sensing, optical data storage and other devices as mentioned in this paper.
Abstract
Triphenylene-based discotic liquid crystals, which have already been used commercially in phase compensation films to improve the viewing angle of liquid crystal display devices, also have application potential as one-dimensional charge carrier systems useful in electrical conduction, photoconduction, electroluminescence, photovoltaic solar cells, gas sensing, optical data storage and other devices. Over the past 25 years, more than 500 triphenylene derivatives have been synthesized to explore these possibilities. Cammidge and Bushby reviewed the chemistry and physical properties of about 100 triphenylene-based discotic liquid crystals prepared up to 1995. This review summarizes advances in the chemistry of triphenylene-based discotic liquid crystals since late 1995.

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Citations
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Journal ArticleDOI

Discotic liquid crystals: a new generation of organic semiconductors

TL;DR: This critical review covers various aspects of recent research on discotic liquid crystals, in particular, molecular design concepts, supramolecular structure, processing into ordered thin films and fabrication of electronic devices.
Journal ArticleDOI

Discotic Liquid Crystals: From Tailor-Made Synthesis to Plastic Electronics

TL;DR: This Review will focus on the major classes of columnar mesogens rather than presenting a library of columner liquid crystals, and emphasis will be given to efficient synthetic procedures, and relevant mesomorphic and physical properties.
Journal ArticleDOI

Self-organization of disc-like molecules: chemical aspects

TL;DR: This critical review describes, after an in-depth introduction, recent advances in basic design principles and synthetic approaches towards the preparation of most frequently encountered discotic liquid crystals.
Journal ArticleDOI

Liquid crystal dimers and higher oligomers: between monomers and polymers

TL;DR: The underlying theme of this Critical Review is the relationship between molecular structure and liquid crystalline behaviour in a class of materials referred to as liquid crystal oligomers, and how this molecular architecture has been exploited to address issues in a range of quite different areas and has given rise to potential applications for these materials.
References
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Journal ArticleDOI

Liquid crystals of disc-like molecules

TL;DR: Based on the x-ray data, a structure is proposed in which the discs are stacked one on top of the other in columns that constitute a hexagonal arrangement, but the spacing between the discs in each column is irregular as discussed by the authors.
Journal ArticleDOI

Color-Tuned Electroluminescence from Columnar Liquid Crystalline Alkyl Arenecarboxylates.

TL;DR: The picture shows the orange-red electroluminescence of a light-emitting diode containing the perylene 3,4,9,10-tetracarboxylic acid ethyl ester.
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Synthesis and Self‐Assembly of Functionalized Hexa‐peri‐hexabenzocoronenes

TL;DR: The bulk structure in the mesophase is largely insensitive to changes of the substitution pattern; however, in situ scanning tunneling microscopy at the solid-fluid interface between an organic solution of the HBC derivative and highly oriented pyrolytic graphite reveals different packing patterns of the first adsorbed monolayer.
Journal ArticleDOI

Performance of a Novel Optical Compensation Film Based on Negative Birefringence of Discotic Compound for Wide-Viewing-Angle Twisted-Nematic Liquid-Crystal Displays

TL;DR: In this article, a novel optical compensation film utilizing a negatively birefringent discotic compound was optimized by both simulation and experiment to achieve wide-viewing-angle characteristics of twisted-nematic liquid-crystal displays (TN-LCDs).
Journal ArticleDOI

Orientation control and fixation of discotic liquid crystal.

Ken Kawata
- 01 Mar 2002 - 
TL;DR: In this paper, the photopolymerizable discotic liquid crystals are used to fix desired novel alignment, the alignment promoters that deposit toward air surface during web coating, followed by drying of solvent, and then accomplish desired alignment of liquid crystals.
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