Host Material for Blue Phosphor, and Organic Thin Film and Organic Light-Emitting Device Including Same
申请人:Shin Dong Yoon
公开号:US20140159027A1
公开(公告)日:2014-06-12
Provided are a host material for a blue phosphor, and an organic thin film and an organic light-emitting device including the same. The host material for a blue phosphor is such that a carbazole compound is bonded around a central atom, wherein the central atom is a Group 14 element, and the carbazole compound bonded around the central atom is 3 or 4, wherein the carbazole compound includes carbazole in which an alkyl group is substituted. The host material for a blue phosphor has high triplet energy (ET) and excellent electrical mobility and thermal stability. As a result, the organic thin film, which includes the host material, and the organic light-emitting device, which includes the organic thin film, implement a deep blue color and have excellent luminous efficiency.
self-assembling form of three-dimensional architecture that has received particular research focus. Building multilayered ultralarge cages to simulate complicated virus capsids is believed to be a tough synthetic challenge. Here, we synthesize two large double-shell supramolecular cages by facile self-assembly of presynthesized metal-organic hexatopic terpyridine ligands with metal ions. Differing from the mixture
Strain‐Induced Heteromorphosis Multi‐Cavity Cages: Tension‐Driven Self‐Expansion Strategy for Controllable Enhancement of Complexity in Supramolecular Assembly
A strain-dependent capping strategy was proposed to obtain a series of multi-cavity cages, where dimetallic double-cavity cages and triple-cavity cages were formed through the geometric matching and the strain-induced tension, respectively. This is the first time that discrete supramolecularcages with three cavities have been achieved through the application of molecular strain.