- Efficient deep-blue emitters based on triphenylamine-linked benzimidazole derivatives for nondoped fluorescent organic light-emitting diodes
-
Two triphenylamine-substituted benzimidazole derivatives were synthesized for use as efficient deep-blue emitters in nondoped fluorescent organic light-emitting diodes (FLOLEDs). The molecular design of 40,40 0-(1H-benzo[d]imidazole-1,2-diyl)bis(N,N-diphenylbiphenyl-4-amine) (T2B) to limit the molecular packing density enabled T2B-based devices to suppress the exciton quenching by a bulky three-dimensional structure. Nondoped FLOLEDs fabricated using T2B as a blue emitter exhibited an external quantum efficiency of 4.67% with color coordinates of (0.15, 0.08).
- Jeong, Seongjin,Kim, Myoung-Ki,Kim, Sung Hyun,Hong, Jong-In
-
-
Read Online
- Organometallic Ir(III) Phosphors Decorated by Carbazole/Diphenylphosphoryl Units for Efficient Solution-Processable OLEDs with Low Efficiency Roll-Offs
-
Recently, solution-processable PhOLEDs have been attracting great interest for their low cost and high productivity relative to the vacuum-deposited devices. Similar to vacuum-deposited OLEDs, however, they usually suffer from serious efficiency roll-offs, especially in high brightness. Finding a feasible way and/or designing novel materials to increase efficiencies and reduce roll-offs simultaneously are highly desired. Herein, a new family of solution-processable cyclometalated iridium(III) phosphors with carbazole (Cz) and/or diphenylphosphoryl (Ph2PO) units functionalized main ligands has been designed. Owing to Cz and Ph2PO moieties possessing bulky steric effects, they can suppress the intermolecular strong packing and then decrease TTA effects and emission quenching. Meanwhile, the resulting OLEDs based on the designed phosphors exhibit considerable efficiencies and relatively small efficiency roll-offs. The device based on 4 containing both Cz and Ph2PO units realized a maximum current efficiency of 21.3 cd A-1, accompanied by a small roll-off. By optimization of the configuration of OLEDs, the device performance can be further enhanced, demonstrating their potential for high-performance solution-processable PhOLEDs.
- Song, Wei-Lin,Mao, Hui-Ting,Shan, Guo-Gang,Gao, Ying,Cheng, Gang,Su, Zhong-Min
-
-
Read Online
- Benzimidazolone derivatives organic light emitting compound and organic electroluminescent device including the same
-
Provided is a benzo imidazolone derivative organic electroluminescent compound represented by chemical formula a. Chemical Formula a. The benzo imidazolone derivative organic light emitting compound is suitable for inclusion in an organic electroluminescent device. Both electrochemical stability and thermal stability can be satisfactorily met.
- -
-
-
- Deuterium atom-containing electron transport material and application thereof
-
The invention discloses a deuterium atom-containing electron transport material and an application thereof. The deuterium atom-containing electron transport material is a benzimidazole compound with a deuterated substituent, and can be used as an electron transport material in an electroluminescent device. The novel compounds enable the organic electroluminescent device to be improved in efficiency and achieve longer device life, and better device performance can be provided. An electroluminescent device and a compound formulation are also disclosed.
- -
-
-
- A green and practical reduction of N-(4-chlorophenyl)-2-nitroaniline and its derivatives to corresponding N-substituted-benzene-1,2-diamines using thiourea dioxide
-
A new effective approach for synthesizing diverse N-substituted-benzene-1,2-diamines is reported. The treatment of N-substituted-2-nitroanilines with thiourea dioxide in the presence of sodium hydroxide efficiently formed the corresponding N-substituted-benzene-1,2-diamines, including N-(4-chlorophenyl)benzene-1,2-diamine with a good yield of 94%. The by-product is environmentally-friendly urea and is easy to separate from the product by filtration procedure that enhances the convenience of the approach.
- Cui, Jian-Lan,Wang, Ning,Wang, Xiao,Yu, Si-Yuan,Zhong, Cong-Shan
-
-
- Polyheterocyclic compound and application
-
The invention relates to the technical field of organic electroluminescent display, particularly discloses an organic material of a polyheterocyclic compound, and also discloses application of the organic material in an organic electroluminescent device. The polyheterocyclic compound provided by the invention is shown as a general formula (I), can be applied to the field of organic electroluminescence, and is used as a luminescent layer main body material. The compound with the structure provided by the invention is applied to an OLED device, and can reduce the driving voltage and improve thelight emitting efficiency of the device.
- -
-
-
- Design, synthesis and biological evaluation of novel 4-phenoxypyridine based 3-oxo-3,4-dihydroquinoxaline-2-carboxamide derivatives as potential c-Met kinase inhibitors
-
Blocking c-Met kinase activity by small-molecule inhibitors has been identified as a promising approach for the treatment of cancers. Herein, we described the design, synthesis, and biological evaluation of a series of 4-phenoxypyridine-based 3-oxo-3,4-dihydroquinoxaline derivatives as c-Met kinase inhibitors. Inhibitory activitives against c-Met kinase evaluation indicated that most of compounds showed excellent c-Met kinase activity in vitro, and IC50 values of ten compounds (23a, 23e, 23f, 23l, 23r, 23s, 23v, 23w, 23x and 23y) were less than 10.00 nM. Notably, three of them (23v, 23w and 23y) showed remarkable potency with IC50 values of 2.31 nM, 1.91 nM and 2.44 nM, respectively, and thus they were more potent than positive control drug foretinib (c-Met, IC50 = 2.53 nM). Cytotoxic evaluation indicated the most promising compound 23w showed remarkable cytotoxicity against A549, H460 and HT-29 cell lines with IC50 values of 1.57 μM, 0.94 μM and 0.65 μM, respectively. Furthermore, the acridine orange/ethidium bromide (AO/EB) staining, cell apoptosis assays by flow cytometry, wound-healing assays and transwell migration assays on HT-29 and/or A549 cells of 23w were performed. Especially compound 23w, which displayed potent antitumor, apoptosis induction and antimetastatic activity, could be used as a promising lead for further development. Meanwhile, their preliminary structure-activity relationships (SARs) were also discussed.
- Wang, Zhen,Shi, Jiantao,Zhu, Xianglong,Zhao, Wenwen,Gong, Yilin,Hao, Xuechen,Hou, Yunlei,Liu, Yajing,Ding, Shi,Liu, Ju,Chen, Ye
-
-
- Compound containing polyheterocycles and application
-
The invention relates to the technical field of organic electroluminescent display, particularly discloses an organic material containing a polyheterocyclic compound, and also discloses an applicationof the organic material in an organic electroluminescent device. The polyheterocycle-containing compound provided by the invention is shown as a general formula (I), can be applied to the field of organic electroluminescence, and can be used as an electron transport material. The compound with the structure provided by the invention is applied to an OLED device, the driving voltage of the devicecan be reduced, and the light emitting efficiency of the device is improved.
- -
-
Paragraph 0061; 0064; 0099-0102
(2020/10/20)
-
- Bipyridyl derivative and application thereof
-
The present invention provides a novel compound, which has a structure general formula represented by a formula (I), wherein Ar1 and Ar2 are independently selected from an aromatic hydrocarbon derivative group containing benzimidazoyl, an aromatic hydrocarbon derivative group containing a pyridine group, substituted or unsubstituted C6-C30 aromatic hydrocarbon, and a substituted or unsubstituted C6-C30 fused ring aromatic hydrocarbon group, and R1 and R2 are independently and respectively selected from H, C1-C12 aliphatic hydrocarbon radical, phenyl, substituted phenyl, naphthyl, substituted naphthyl, biphenyl and substituted biphenyl. According to the present invention, the compound has characteristics of stable character, simple preparation process, high luminous efficiency and high carrier mobility, and can be used for the electron transport layer of the electroluminescent element, and the device applying the compound has characteristics of significant driving voltage reducing and current efficiency improving. The formula (I) is defined in the instruction.
- -
-
-
- Derivative of benzimidazole bridging anthracenes as well as preparation method and application thereof
-
The invention belongs to the technical field of photoelectric material application science and technology, and particularly relates to a derivative of benzimidazole bridging anthracenes as well as a preparation method and application thereof. According to the derivative of the benzimidazole bridging anthracenes, the derivative of the benzimidazole bridging anthracenes is used as basic structure unit, and is then modified to obtain an asymmetric structure. The compound provided by the invention has high glass transition temperature and high electron transmission capacity. When used as an electron transmission material and compared with a conventional main body material of an electron transmission group, such as a conventional electron transmission material 1,3,5-tri(1-phenyl-1H-benzimidazole-2-group) benzene (TPBi), the compound has the advantages that the hole transmission capacity and the electron transmission capacity are obviously improved; in an organic electroluminescence device,when compared with the conventional electron transmission material, the compound has the advantages that the glass transition temperature, the current efficiency, the power efficiency, the external quantum efficiency, the slow down efficiency and the roll-off aspect are obviously improved, and is an ideal electron transmission material.
- -
-
-
- ORGANIC LIGHT EMITTING DEVICE AND PREPARATION METHOD THEREOF
-
The present invention relates to a display technical field, especially to an organic light emitting device which includes from the bottom to the top: a substrate, an anode layer, a hole injection layer, a hole transport layer, an exciton blocking layer, an organic light emitting layer, an electron transport layer, an electron injection layer and a cathode layer; the material of the organic light emitting layer includes benzimidazole derivative as illustrated in Formula 1, wherein P1, P2 and P3 are benzene rings, and at least one of R1?R12 is a substituent having hole transport ability. The present invention further provides preparing methods for the organic light emitting layer and device.
- -
-
Paragraph 0056; 0061; 0062; 0063
(2018/12/02)
-
- Preparation method and application of phenylbenzimidazole based monopole thermal exciting delayed fluorescence body and electronic transmission material
-
The invention provides a method and application of a phenylbenzimidazole based monopole thermal exciting delayed fluorescence body and an electronic transmission material, relates to the synthesizing and application of organic electroluminescence thermal exciting delayed fluorescence body and an electronic transmission material, belongs to the field of preparation of bodies and electronic transmission materials, and aims at solving the technical problems of complicated process in preparation of the conventional multi-layer complex blue-light OLED device and high device cost. The phenylbenzimidazole based monopole thermal exciting delayed fluorescence body electronic transmission material is characterized in that phenylbenzimidazole is used as the base body. The material synthesized by the method is treated as the body material and the electronic transmission; the four-layer simplified device structure is able to effectively improve the device performance; the carrier injection and transmission capacity of an electroluminescent device material can be improved; the external quantum efficiency of a thermal exciting delayed fluorescence devices prepared through the phenylbenzimidazole based monopole thermal exciting delayed fluorescence body and the electronic transmission material is 12.5%; the thermodynamic stability is high; the cracking temperature is beyond 380 DEG C; meanwhile, the luminous efficiency and the brightness of the organic electroluminescence material can be improved. The material is mainly applied to an organic thermal exciting delayed fluorescent diode pipe.
- -
-
-
- Compound for organic optoelectronic device, organic light emitting diode including the same and display including the organic light emitting diode
-
A compound for an organic optoelectronic device is represented by Chemical Formula 1: and, in Chemical Formula 1, one of Ar1 or Ar2 is a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C3 to C30 heteroaryl group, and the other of Ar1 or Ar2 is a substituent represented by the Chemical Formula 2:
- -
-
-
- Design, synthesis and biological evaluation of novel 4-phenoxyquinoline derivatives containing 3-oxo-3,4-dihydroquinoxaline moiety as c-Met kinase inhibitors
-
A series of novel 4-phenoxyquinoline derivatives containing 3-oxo-3,4-dihydroquinoxaline moiety were synthesized and evaluated for their c-Met kinase inhibitory activity and antiproliferative activity against five cancer cell lines (HT-29, H460, A549, MKN-45 and U87MG) in vitro. Most of the compounds exhibited moderate-to-significant cytotoxicity as compared with foretinib. The most promising compound 41 (with c-Met IC50 value of 0.90?nM) showed remarkable cytotoxicity against HT-29, H460, A549, MKN-45 and U87MG cell lines with IC50 values of 0.06?μM, 0.05?μM, 0.18?μM, 0.023?μM and 0.66?μM, respectively, and thus it was 1.22- to 3.50-fold more potent than foretinib. Their preliminary structure-activity relationships (SARs) studies indicate that electron-withdrawing groups on the terminal phenyl rings are beneficial for improving the antitumor activity.
- Liu, Ju,Yang, Di,Yang, Xiuxiu,Nie, Minhua,Wu, Guodong,Wang, Zhunchao,Li, Wei,Liu, Yajing,Gong, Ping
-
p. 4475 - 4486
(2017/07/22)
-
- Design, synthesis and antifungal activity of novel fenfuram-diarylamine hybrids
-
Ten novel fenfuram-diarylamine hybrids were designed and synthesized. And their antifungal activities against four phytopathogenic fungi have been evaluated in vitro and most of the compounds demonstrated a significant antifungal activities against Rhizoctonia solani and Sclerotinia sclerotiorum. Compound 5e exhibited the most potent antifungal activity against R. solani with an EC50value of 0.037 mg/L, far superior to the commercially available fungicide boscalid (EC50= 1.71 mg/L) and lead fungicide fenfuram (EC50= 6.18 mg/L). Furthermore, scanning electron microscopy images showed that the mycelia on treated media grew abnormally with tenuous, wizened and overlapping colonies compared to the negative control. Molecular docking studies revealed that compound 5e featured a higher affinity for succinate dehydrogenase (SDH) than fenfuram. Furthermore, it was shown that the 3-chlorophenyl group in compound 5e formed a CH-π interaction with B/Trp-206 and a Cl-π interaction with D/Tyr-128, rendering compound 5e more active than fenfuram against SDH.
- Wang, Hongyu,Gao, Xuheng,Zhang, Xiaoxiao,Jin, Hong,Tao, Ke,Hou, Taiping
-
-
- Synthesis and biological evaluation of novel pyrazole carboxamide with diarylamine-modi?ed scaffold as potent antifungal agents
-
Twenty-seven novel pyrazole carboxamides with diarylamine-modi?ed scaffold were designed, synthesized and characterized in detail via 1H NMR, 13C NMR, IR and ESI-HRMS. Preliminary bioassays showed that some of the target compounds exhibited good antifungal activity against Rhizoctonia solani, Rhizoctonia cerealis and Sclerotinia sclerotiorum. Among them, compound 9c-7 exhibited the highest antifungal activities against R. solani, R. cerealis and S. sclerotiorum in vitro with IC50 values of 0.013, 1.608 and 1.874?μg/mL, respectively. Notably, compound 9c-7 still presented the highest fungicidal activities against R. solani in vivo with an IC50 value of 22.21?μg/mL. Molecular docking simulation results reveal that compound 9c-7 binds well to the hydrophobic pockets of the receptor protein succinate dehydrogenase. This study suggests that compound 9c-7 could act as a potential fungicide to be used for further optimization.
- Zhang, Xiao-Xiao,Jin, Hong,Deng, Yuan-Jie,Gao, Xu-Heng,Li, Yong,Zhao, Yong-Tian,Tao, Ke,Hou, Tai-Ping
-
p. 1731 - 1736
(2017/07/27)
-
- Boron-containig benzopyrenes derivatives, their preparation and organic electroluminescent device (by machine translation)
-
The present invention relates to a 6-tritolyl-6H-6-bora benzo[cd]pyrene derivative represented by a formula (1), wherein substituents are described in an instruction. The present invention further relates to uses of the compound as an electron transportation material, and an organic electroluminescent device containing the compound. Formula (1).
- -
-
-
- 6,12-DINAPHTHYLCHRYSENE DERIVATIVE AND ORGANIC LIGHT-EMITTING DEVICE USING THE DERIVATIVE
-
Provided are an organic compound having high heat stability suitable for use in an organic light-emitting device, and an organic light-emitting device using the organic compound. The organic light-emitting device is an organic light-emitting device, including: an anode; a cathode; and an organic compound layer disposed between the anode and the cathode, in which at least one layer of the organic compound layer has a 6,12-dinaphthylchrysene derivative represented by one of the following general formulae (1) and (2): in the formulae (1) and (2), Z represents a naphthyl group, and Q represents an electron-withdrawing substituent selected from the group consisting of the following general formulae (3) to (5): in the formula (5), R 1 represents a hydrogen atom or a methyl group.
- -
-
-
- Heterocyclic compound and organic light emitting device comprising same
-
Provided is an organic light emitting device which uses an aryl amine derivative using benzimidazole as a framework for a light emitting layer, thereby having high efficiency and long life. Disclosed are a heterocyclic compound represented by chemical formula 1 and an organic light emitting device comprising the same. Refer to detailed description on substituents of the chemical formula 1.
- -
-
-
- Binaphthalene bridged bipolar transporting materials for blue electroluminescence: Toward high EL efficiency via molecular tuning
-
Two isomeric bipolar transporting molecules containing arylamine and benzimidazole moieties linked by 1,1-binaphthalene bridge have been synthesized and used for blue light-emitting diodes. The highly twisted binaphthalene bridge is beneficial for amorphous morphology, good solubility, high thermal stability and high photoluminescence quantum efficiency (ΦPL). The charge transfer bands of these compounds exhibit interesting solvent-polarity dependent fluorescence properties. The physical properties of the compounds were tunable upon binding of the benzimidazole with binaphthalene group via C- (BINAPC) or N- (BINAPN) linkage. Three-layered blue-emitting OLEDs using BINAPC or BINAPN as the emitting layer, NPB as the hole transporting layer, and TPBI as the electron transporting layer as well as hole-blocking layer exhibit good performance. External quantum efficiencies of 2.49% with color coordinates of (0.15, 0.11) and 2.67% with color coordinates of (0.16, 0.16) were achieved for BINAPC and BINAPN, respectively.
- Muangpaisal, Rossatorn,Hung, Wei-I.,Lin, Jiann T.,Ting, San-Yu,Chen, Li-Yin
-
p. 2992 - 2998
(2014/04/17)
-
- NOVEL FUSED POLYCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE, DISPLAY APPARATUS, IMAGE INFORMATION PROCESSING APPARATUS, LIGHTING SYSTEM, AND IMAGE FORMING APPARATUS HAVING THE COMPOUND
-
A novel organic compound suitable for blue-light-emitting devices and an organic light-emitting device including the compound are provided. An organic compound represented by Formula [1] according to Claim 1 is provided. In Formula [1], R1 to R16 each independently represent a group selected from a hydrogen atom, a cyano group, substituted or unsubstituted alkyl groups, substituted or unsubstituted aryl groups, and substituted or unsubstituted heterocyclic groups.
- -
-
Paragraph 0173-0174
(2014/03/21)
-
- "All-water" one-pot diverse synthesis of 1,2-disubstituted benzimidazoles: Hydrogen bond driven 'synergistic electrophile-nucleophile dual activation' by water
-
A new "all-water" tandem arylaminoarylation/arylaminoalkylation- reduction-cyclisation route is reported for one-pot diversity oriented synthesis of regiodefined 1,2-disubstituted benzimidazoles. Water plays a crucial and indispensable role through hydrogen bond driven 'synergistic electrophile-nucleophile dual activation' in the formation of N-mono-aryl/aryl alkyl/alkyl/cycloalkyl o-nitroanilines under metal and base-free conditions to replace the transition metal-based C-N bond formation (aryl amination) chemistry and underlines the origin of regiodefined installation of the diverse selection of aryl, aryl alkyl, and alkyl/cycloalkyl groups as substituents on the benzimidazole scaffold to form the 1,2-disubstituted benzimidazoles. The influence of the hydrogen bond effect of water in promoting the arylaminoarylation reaction under base and metal-free conditions has been realized through observation of inferior yields in D2O compared to that obtained in water during the reaction of o-fluoronitrobenzene with aniline separately performed in water and D2O under similar experimental conditions. Water also provides assistance in promoting the subsequent nitro reduction and in the final cyclocondensation steps. The role of water in promoting the cyclocondensation reaction through hydrogen bonds is realized by the differential product yields during the reaction of mono-N-phenyl-o- phenylenediamine with benzaldehyde performed separately in water and D 2O. The better hydrogen bond donor and hydrogen bond acceptor abilities of water compared to those of the organic solvents are the contributing/deciding factors for making the new water-assisted tandem arylaminoarylation/arylaminoalkylation-reduction-cyclisation strategy for the diversified synthesis of the regiodefined 1,2-disubstituted benzimidazoles effective in an aqueous medium, making it represent a true "all-water chemistry."
- Kommi, Damodara N.,Jadhavar, Pradeep S.,Kumar, Dinesh,Chakraborti, Asit K.
-
p. 798 - 810
(2013/04/24)
-
- Identification of less lipophilic riminophenazine derivatives for the treatment of drug-resistant tuberculosis
-
Clofazimine (CFZ), a member of the riminophenazine class, has been studied in clinical trials for the treatment of multidrug-resistant tuberculosis (MDR-TB). CFZ has several side effects which can be attributed to its extremely high lipophilicity. A series of novel riminophenazine analogues bearing a C-2 pyridyl substituent was designed and synthesized with the goal of maintaining potent activity against Mycobacterium tuberculosis (M. tuberculosis) while improving upon its safety profile by lowering the lipophilicity. All compounds were evaluated for their in vitro activity and cytotoxicity. The results demonstrated that many new compounds had potent activity against M. tuberculosis with MICs of less than 0.03 μg/mL and low cytotoxicity with IC50 values greater than 64 μg/mL. Some compounds were tested for in vivo efficacy against MDR-TB in an experimental mouse infection model. Two compounds demonstrated equivalent or better efficacy than CFZ in this model with significantly reduced skin discoloration potential.
- Zhang, Dongfeng,Liu, Kai,Liu, Binna,Wang, Jingbin,Zhang, Gang,Zhang, Hao,Liu, Yang,Hou, Yanyan,Gong, Ningbo,Lv, Yang,Li, Chun,Yin, Dali,Huang, Haihong,Lu, Yu,Wang, Bin,Zheng, Meiqin,Fu, Lei,Cooper, Christopher B.,Upton, Anna M.,Ma, Zhenkun
-
p. 8409 - 8417,9
(2020/09/15)
-
- Fused polycyclic compound and organic light-emitting device using the compound
-
Provided are fused polycyclic compounds suitable for use mainly as a component for a blue-light-emitting device, and an organic light-emitting device using the compound. The fused polycyclic compounds are represented by the general formulae (1), (2), (8) and (9).
- -
-
Page/Page column 28-29
(2012/12/14)
-
- BIPHENYL SUBSTITUTED 1,3-DIHYDRO-BENZOIMIDAZOL-2-YLIDENEAMINE DERIVATIVES
-
The invention relates to new derivatives of formula (I), wherein the substituents are as defined in the specification; to processes for the preparation of such derivatives; pharmaceutical compositions comprising such derivatives; such derivatives as a medicament; such derivatives for the treatment of one or more IGF-1R mediated disorders or diseases
- -
-
-
- NITROGEN-CONTAINING HETEROCYCLIC DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
-
A novel nitrogen-containing heterocyclic derivative having a specific structure. An organic electroluminescence device comprises an organic thin-film layer which is disposed between a cathode and an anode and comprises one or more layers having a light emitting layer. At least one layer of the organic thin-film layer comprises the nitrogen-containing heterocyclic derivative. The organic electroluminescence device exhibits a high luminance and a high luminous efficiency even at a low driving voltage.
- -
-
Page/Page column 38
(2010/10/19)
-
- PIPERIDINE DERIVATIVES AS HUMAN PAPILLOMA VIRUS INHIBITORS
-
HPV inhibitors with formula (I) where G1 represents a hydrocarbonated bond or chain possibly substituted by one or two alkyl groups, G2 represents a group (see formula Ia+Ib) or R represents a hydrogen, an alkyl, halogenoalkyl, or a prodrug radical such as carbamate, acetyl or dialkylaminomethyl, G represents a bond or a hydrocarbonated chain possibly substituted by one or two alkyls, W represents an oxygen or sulphur, R1 and R2 each represent a group chosen from among hydrogen, halogen, hydroxyl, thio, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, amino, monoalkylamino, dialkylamino, cycloalkyl, alkyl or halogenoalkyl, R3 represents an acid or a prodrug radical of the acid function or a bioisostere of the acid function, A represents an aryl, cycloalkyl, cycloalkenyl or a heterocycle, each possibly substituted, and B represents an aryl or a heterocycle with 6 chains, each possibly substituted, and pharmaceutically acceptable salts.
- -
-
Page/Page column 22
(2009/09/05)
-
- NITROGEN-CONTAINING HETEROCYCLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT USING THE SAME
-
A novel derivative of heterocyclic compound having nitrogen atom with a structure made by bonding special groups to benzimidazole, a material for an organic electroluminescence (EL) device comprising the derivative of heterocyclic compound having nitrogen atom and an organic electroluminescence device comprising at least one organic compound layer containing a light emitting layer sandwiched between a pair of electrodes, wherein the device contains the derivative of heterocyclic compound having nitrogen atom. An organic EL device achieving elevation of luminance and of efficiency in light emission even under low driving voltage is obtainable by an employment of the derivative of heterocyclic compound having nitrogen atom for at least one layer composing organic compound layers of the EL device.
- -
-
Page/Page column 37
(2010/02/14)
-