Search academic texts

Information × Registration Number 0212U000130, 0111U008887 , R & D reports Title New liquid crystal semiconductor for organic electronics. popup.stage_title Head Nazarenko Vassili, Registration Date 18-01-2012 Organization Institute of physics NASU popup.description2 Contrary to amorphous silicon, which is widely used in solar cells and flat displays, organic semiconductor materials offer the benefits that they can be deposited on plastic substrates at low temperature by employing solution-based printing techniques, which would result in a dramatic reduction of the manufacturing costs. The present proposal is motivated by the advent of new classes of organic semiconductor materials, lyotropic chromonic liquid crystals (LCLC), of considerable technological relevance where the large orientation order of entire molecules have been reported. LCLCs represent a new class of soft matter in which the self-assembled aggregates form LC phases as well as solid films with in-plane ordering. Within the aggregates, the molecules are associated through non-covalent interactions such as pi-pi attraction. In terms of geometry and electronic properties, large pi-electron conjugation within supramolecular assembly of the molecules, an LCLC aggregate is very similar to that of molecule solid, with an important difference being that in LCLCs there are no covalent bonds to fix the length of aggregates. The latter represents one of the key parameters controlling the charge transport in conjugated materials - the longer conjugation the better mobility of charges, since intramolecular conjugation defects impose the hopping of the charges. Product Description popup.authors Бойко Олександр Петрович Вахнін Олександр Юрійович Висоцька Світлана Андріївна Кадащук Андрій Костянтинович Назаренко Василь Геннадійович Турів Тарас Олегович popup.nrat_date 2020-04-02 Close