cas 1161009-89-7, 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane

Articles about 1161009-89-7Total 11 be found

C1-Linked Spirobifluorene Dimers: Pure Hydrocarbon Hosts for High-Performance Blue Phosphorescent OLEDs
Reported here are C1-linked spiro-bifluorene dimers. A comprehensive study is carried out to analyze the electronic properties of these highly twisted structures. This work shows that the C1-position enables the design of pure hydrocarbon materials, with a high triplet energy, for hosting blue phosphors in efficient phosphorescent OLEDs (PhOLEDs). To date, this work describes the highest performance of blue PhOLEDs ever reported for pure hydrocarbons (external quantum efficiency of ca. 23 %), thus highlighting the potential of the C1-spirobifluorene scaffold in organic electronics.
Sicard, Lambert J.,Li, Hong-Cheng,Wang, Qiang,Liu, Xiang-Yang,Jeannin, Olivier,Rault-Berthelot, Jo?lle,Liao, Liang-Sheng,Jiang, Zuo-Quan,Poriel, Cyril
p. 3848 - 3853
(2019)
Read Online

Organometallic complex and organic elcetroluminescent device including the same
The present invention provides an organic metal complex contributing to the substantial light color and light efficiency improvement of an organic electroluminescent device. 1 Is a perspective view of an organic electroluminescent device according to the
-
Paragraph 0192-0194

(2021/08/10)

NITROGEN-CONTAINING FUSED HETEROCYCLIC RING COMPOUND AND APPLICATION THEREOF
The present invention relates to a nitrogen-containing fused heterocyclic ring compound and application thereof. The compound has the structural formula (I): using the described compound, it is possible to fabricate a device having higher stability and a longer service life.
-
Paragraph 0344-0346

(2020/08/12)

COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
The present invention provides: a novel mixture capable of improving luminous efficiency, stability, and lifespan of an element; an organic electronic element using the same; and an electronic device thereof. By using the mixture according to the present
-
Paragraph 0225; 0517; 0622-0625; 0701

(2020/06/02)

ORGANIC MIXTURE, COMPOSITION, AND ORGANIC ELECTRONIC COMPONENT
Disclosed in the present application is an organic mixture. The organic mixture comprises two organic compounds H1 and H2. The organic compound H1 has electron transmission performance, and the organic compound H1 satisfies: Δ((LUMO+1)?LUMO)≥0.1 eV, and min((LUMO(H1)?HOMO(H2), LUMO(H2)?HOMO(H1))≤min(ET(H1), ET(H2)). The organic compound H1 and the organic compound H2 are easy to form exciplexes and have balanced electron transmission properties, the organic compound Hi has high stability of electron transmission, and accordingly the efficiency and the service life of related electronic components can be effectively improved, and a feasible solution for improving overall performance of the electronic components is provided.
-
Paragraph 0183; 0184

(2020/01/03)

A containing 9, 9' - fluorene and dibenzofuran aromatic amine compound and its organic electroluminescent device (by machine translation)
The present invention provides a containing 9, 9' - fluorene and dibenzofuran aromatic amine compound and its organic electroluminescent light emitting device, relates to organic photoelectric material technical field. The compound preparation method is simple, easily available raw materials, has suitable the highest occupied molecular orbital energy level, high T1 value and high refractive index, and have very good hole transporting capability, thermal stability and film-forming properties, is applied to the OLED devices, can significantly improve the luminous efficiency of the device, heat resistance and service life, also can effectively reduce the driving voltage of the device. (by machine translation)
-
Paragraph 0060; 0068; 0069

(2018/11/04)

Aromatic amine compound containing 9,9'-spirobifluorene and dibenzothiophene and organic electroluminescent device thereof
The invention provides an aromatic amine compound containing 9,9'-spirobifluorene and dibenzothiophene and an organic electroluminescent device thereof, and relates to the technical field of organic photoelectric materials. The compound has a simple preparation method, easily available raw materials, good hole transport capability and stability, can realize charge balance in a light-emitting layer, has a suitable highest occupied molecular orbital energy level, a high T1 value and a high refractive index, can remarkably improve the light emitting efficiency, the heat resistance and the servicelife of the device when applied to an OLED device, and can also effectively reduce the driving voltage of the device, thereby being an OLED material with excellent performance.
-
(2018/11/03)

Synthesis and electroluminescence properties of new blue dual-core OLED emitters using bulky side chromophores
Using a 1-anthracen-9-yl-pyrene (AP) dual-core emitter, two new emitters of blue light, 1-spiro-9,9′-bifluoren-4-yl-6-(10-spiro-9,9′-bifluoren-4-yl-anthracen-9-yl)-pyrene (DSF-AP) and 1-[2-(9H-carbazol-9-yl)phenyl]-6-[2-(9H-carbazol-9-yl)phenyl-anthracen-9-yl]-pyrene (DCP-AP), were synthesized through boration and the Suzuki aryl-aryl coupling reaction. These two materials exhibited PLmax values at 443?nm and 448?nm in a chloroform solution, and at 458?nm and 463?nm in a thin-film state. EL devices with the synthesized compounds were fabricated in the following configuration: ITO/4,4′,4″-tris(N-(2-naphthyl)-N-phenylamino)triphenylamine (2-TNATA) (60?nm)/N,N′-bis (naphthalene-1-yl)-N,N′-bis(phenyl)benzidine (NPB) (15?nm)/synthesized blue light-emitting materials (35?nm)/Tris-(8-hydroxyquinoline)aluminum (Alq3) (20?nm)/lithium fluoride (LiF) (1?nm)/Al (200?nm). Compared with the device made using an AP core lacking side groups, the device made with DCP-AP displayed 31% higher luminance efficiency (resulting in a value of 4.37?cd/A) and 32% higher power efficiency (to yield 1.93?lm/W), as well as a high external quantum efficiency (3.64%).
Lee, Suji,Kim, Beomjin,Jung, Hyocheol,Shin, Hwangyu,Lee, Hayoon,Lee, Jaehyun,Park, Jongwook
p. 255 - 261
(2016/09/07)

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES
The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
-
Page/Page column 66

(2016/06/15)

SPIRO[CYCLOPENTA[def]TRIPHENYLENE-4,9'-FLUORENE] COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE HAVING THE SAME
The present invention provides a spiro[cyclopenta[def]triphenylene-4,9'-fluorene] compound having a high triplet energy level and a high glass transition temperature and also provides an excellent organic light-emitting device including the compound to achieve a high luminous efficiency and a low driving voltage. The present invention provides spiro[cyclopenta[def]triphenylene-4,9'-fluorene] compounds represented by General Formula [1] shown in Claim 1.
-
(2012/05/19)

Novel oligo-9.9-spirobifluorenes through ortho-linkage as full hydrocarbon host for highly efficient phosphorescent oleds
4-Bromo-9,9′-spirobifluorene is facilely synthesized, and from this precursor, two ortho-linked oligo-9,9′-spirobifluorenes, 44BSF and 24TSF, are constructed. Devices with 24TSF as the full-hydrocarbon host material and lr(ppy)3 or (ppq)2
Jiang, Zuoquan,Yao, Haiqing,Zhang, Zhiqiang,Yang, Chuluo,Liu, Zhongyin,Tao, Youtian,Qin, Jingui,Ma, Dongge
supporting information; experimental part
p. 2607 - 2610
(2009/10/23)