Self-assembled discotics as molecular semiconductors

Abstract

With the advent of a new era of smart-technology, the demand for more economic optoelectronic materials that do not compromise with efficiency, is gradually on the rise. Organic semiconductors provide...

2-Aryl-1,3,4-trifluoro-6,7,10,11-tetrakis(alkoxy)triphenylene: a remarkable and highly inclusive mesomorphic platform

“…They thus have attracted considerable attention as emerging promising onedimensional semiconducting soft materials able to form easily solution processible and homogeneous, self-healing films, essential features for the improvement of charge-transport properties in device performance and potential applications in laser jet printers as photoconductors and organic field effect transistors as semiconductors. 8,9,12,56 Electron-rich DLCs Photocurrent of the time-of-flight technique is a widely used method to measure the charge carrier mobility value of bulk liquid crystalline samples. Usually the ITO coated sample cell thickness for TOF measurement is in the range of 10-20 mm, which is very similar to that of printed electronic devices.…”

“…Discotic liquid crystals (DLCs) [1][2][3][4][5][6] are a unique type of soft supramolecular functional material with dynamic and order degree features, and have been widely studied for their great potential commercial applications in the liquid crystal display industry, 7 as well as in organic electronics, [8][9][10][11][12] and magnetic 13 and optical advanced materials. 6,7 DLCs usually consist of a polycyclic aromatic core surrounded by several peripheral alkoxy chains, 1 and they are essentially electron-rich p-systems.…”

Triphenylamine-Containing Benzoic Acids: Synthesis, Liquid Crystalline and Redox Properties

“…Nevertheless, a way to control the electronic communication between functional units is their self-assembly into nanostructures [ 11 , 12 ], and this can be assisted by liquid crystalline (LC) behavior [ 13 , 14 , 15 , 16 , 17 , 18 ]. Thus, the self-assembly of triphenylamine derivatives in columnar mesophases has led to very high hole mobility values [ 19 ].…”

Fast thermally-responsive azatriphenylene ionic discotic liquid crystalline polymers with shape-memory properties

“…Discotic liquid crystals (DLCs) composed of disc-shaped mesogenic units surrounded by multiple flexible chains have potential applications in organic field-effect transistors, organic light-emitting diodes, and organic photovoltaics because of their exceptional columnar self-assembly capabilities and high one-dimensional charge carrier mobility along the columnar superstructure. [22][23][24][25][26][27] Ionic discotic liquid crystals (IDLCs), which are the salts of DLCs, offer an opportunity for developing materials featuring combined electronic and ionic conductivities. Moreover, IDLCs can be better aligned on substrates and processed using cost-effective techniques, such as printing and electrostatic layer-by-layer deposition.…”