COMPOUND HAVING TRIARYLAMINE STRUCTURE AS CORE, AND PREPARATION METHOD THEREFOR
申请人:JIANGSU SUNERA TECHNOLOGY CO., LTD.
公开号:US20210163411A1
公开(公告)日:2021-06-03
A compound having a triarylamine structure as a core, a preparation method therefor, and an application thereof. The compound has a structure represented by general formula (1). The compound has high glass transition temperature and molecular thermal stability, has suitable HOMO and LIMO energy levels, and has high mobility. By means of device structure optimization, the photoelectric properties of an OLED device can be effectively improved and the life of the OLED device can be effectively prolonged.
ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND LIGHTING DEVICE
申请人:Yasukawa Noriko
公开号:US20090091253A1
公开(公告)日:2009-04-09
The first object of the present invention is to provide a blue phosphorescent light-emitting organic electroluminescent (EL) device driven at low voltage, and a display and illuminating device each using such an organic EL device. The second object of the present invention is to provide an organic EL device having long life, and an illuminating device and display each using such an organic EL device. Each organic EL device comprises an electrode and at least one organic layer on a substrate, and at least one of the organic layers is a light-emitting layer containing a host compound and a phosphorescent compound. In order to accomplish the first object, the host compound has an HOMO of from −7.20 to −5.42 eV and an LUMO of from −2.30 to −0.50 eV, and the phosphorescent compound is represented by the general formula (1). In order to accomplish the second object, the host compound is an electron-transporting host compound having an excited triplet energy T
1
of not less than 2.7 eV, and the phosphorescent compound has an HOMO of from −5.15 to −3.50 eV and an LUMO of from −1.25 to +1.00 eV.
ORGANIC LIGHT-EMITTING DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20200185619A1
公开(公告)日:2020-06-11
An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes a first compound represented by Formula 1 and a second compound represented by one selected from Formulae 2-1 to 2-6.
Interactions of newly designed dicationic carbazole derivatives with double-stranded DNA: syntheses, binding studies and AFM imaging
the strong groove interactions of both DPPDI and DPDI to DNA. The similarity and difference in the structures between DPDI and DPPDI explained different interaction preferences with DNA. In groove interactions, dications of pyridinium on either DPDI or DPPDI could interact with DNA base pairs, and –NH on DPDI or –N–Ph on DPPDI pointed out of the groove, as the classical model of DNAgroove binding agents