Patents
Literature
2 results about "Discotic liquid crystal" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Discotic liquid crystals are mesophases formed from disc-shaped molecules known as "discotic mesogens". These phases are often also referred to as columnar phases. Discotic mesogens are typically composed of an aromatic core surrounded by flexible alkyl chains. The aromatic cores allow charge transfer in the stacking direction through the π conjugate systems. The charge transfer allows the discotic liquid crystals to be electrically semiconductive along the stacking direction. Applications have been focusing on using these systems in photovoltaic devices, organic light emitting diodes (OLED), and molecular wires. Discotics have also been suggested for use in compensation films, for LCD displays.
An organic photovoltaic device based on discotic liquid crystal molecules, and a preparation method and application thereof
This invention relates to the field of organic photovoltaic (PV) device technology, specifically to an organic PV device based on disk-shaped liquid crystal molecules, its fabrication method, and its applications. The organic PV device based on disk-shaped liquid crystal molecules provided by this invention comprises an anode substrate, a hole transport layer, an active layer, an electron transport layer, and a metal cathode stacked sequentially. The active layer is composed of a donor material, an acceptor material, and a benzo[a]phenanthrene disk-shaped liquid crystal derivative. The benzo[a]phenanthrene disk-shaped liquid crystal derivative self-assembles into a two-dimensional columnar superlattice nanostructure. The benzo[a]phenanthrene disk-shaped liquid crystal derivative has the structure shown in Formula I and / or Formula II, where R1 and R2 independently comprise a cycloalkane-furanyl or adamantyl group. Based on the self-assembly behavior of the benzo[a]phenanthrene disk-shaped liquid crystal derivative, this invention constructs an ordered columnar superlattice structure by controlling its steric hindrance and dipole interactions, significantly improving the charge transport efficiency and energy conversion efficiency of the device.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
Light-emitting device and preparation method thereof, display device
The present disclosure provides a light-emitting device, a manufacturing method thereof, and a display device. The light-emitting device includes a composite hole transport layer. The composite hole transport layer includes a matrix and a discoidal liquid crystal component. The hole mobility of the discotic liquid crystal component is greater than the hole mobility of the matrix.
Owner:BOE TECHNOLOGY GROUP CO LTD