145 results about "Triphenylene" patented technology

An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. The organic thin-film layer includes at least one emitting layer. The at least one emitting layer contains at least one phosphorescent material and a host material represented by the following formula (1).

In the formula, Ar₁, Ar₂, Ar₃, B₁, B₂, B₃ and B₄ each represent a substituted or unsubstituted benzene ring or a substituted or unsubstituted condensed aromatic hydrocarbon ring selected from a naphthalene ring, a chrysene ring, a fluoranthene ring, a phenanthrene ring, a benzophenanthrene ring, a dibenzophenanthrene ring, a triphenylene ring, a benzo[a]triphenylene ring, a benzochrysene ring, a benzo[b]fluoranthene ring and a picene ring. p is 0 or 1.

The invention provides a novel compound, which has stable compound property, a simple preparation process, high luminous efficiency and high carrier mobility and can be applied to a phosphorescent main body material and an electron transfer layer of an electroluminescent element. According to an applied device, the driving voltage can be reduced remarkably, and the current efficiency is increased. The structural general formula of the compound is shown as a formula I, wherein a mother nucleus is selected from triphenylene; terminal groups Ar1, Ar2 and Ar3 are selected from a pyridine group, a phenyl group, a biphenylyl group or a naphthyl group; A, B and C are chemical bonds or aromatic rings with 6-30 carbon atoms; and m, n and p are integers of 0-2.

Disclosed is a triphenylene based aromatic compound, wherein a benzene center is substituted with a triphenylene group and another aromatic group such as triphenylenyl, pyrenyl, phenylvinyl, carbazolylphenyl, or arylanthryl in the meta position of the benzene center. The meta-substituted aromatic compound of the invention has better thermal stability (Tg) than the conventional para-substituted aromatic compound. The meta-substituted aromatic compound, served as a hole transporting layer or a host material applied in a light emitting layer in an OLED, is more preferable than the conventional para-substituted aromatic compound.

The present invention provides a compound of the general formula

Ar¹—R¹—Ar²   (I)

wherein Ar¹ and Ar² independently represent triphenylenyl or pyrenyl, and R¹ represent a bond, aryl, or heteroaryl. The present invention also provides a process for the preparation of the compound formula (□), and an organic electroluminescence device utilizing luminescent material comprising the compound of formula (□) as an emitting layer.

The invention provides a triarylated amine derivative and an organic light-emitting device, and relates to the technical field of organic light-emitting materials. A furan or thiophene derivative group, a fluorene derivative group, and a triphenylene group are connected on a triarylated amine main structure to obtain the triarylated amine derivative, the film forming property of the triarylated amine derivative is good, the thermal stability is good, the triarylated amine derivative has an excellent hole transfer capability, is simple to synthesize and easy to operate, can be applied into theorganic light-emitting device to serve as a hole transfer layer, effectively solves the problems of poor thermal stability of a hole transfer material in the organic light-emitting device, difficultyin film forming, low light emitting efficiency of the device and serious roll-off, and the organic light emitting device has the advantages of low drive voltage, high light emitting efficiency and long service life.

The present invention provides a triphenylene-perylene monoimide diformate binary compound, which has a structure represented by a general formula I. The present invention further provides a preparation method of the triphenylene-perylene monoimide diformate binary compound, and applications of the triphenylene-perylene monoimide diformate binary compound as an organic solar cell active layer. Compared to the compound in the prior art, the compound of the present invention has advantages of easy adjustment of liquid crystal phase change temperature and temperature range, such that the compound has optical, electronic and electro-optical uses, and especially has uses as the organic solar cell active layer. The general formula (I) is defined in the specification.

The present invention discloses an triphenylene-based fused carbazole compound is represented by the following formula (1) or formula (2), the organic EL device employing the derivative as light emitting host of emitting layer can display good performance like as lower driving voltage and power consumption, increasing efficiency and half-life time.

wherein Ar, X₁ to X₄, m, and R₁ to R₃ are the same definition as described in the present invention.

Various embodiments disclosed relate to conjugated polyelectrolytes and methods of using the same. Various embodiments provide a conjugated polyelectrolyte including a subunit having the structure —R¹—Y—R²—Z—. At each occurrence, R¹ is independently chosen from 1,4-bonded phenylene substituted by —X—R³—R⁴ j times and 2,5-bonded thiophene substituted by —X—R³—R⁴ j times. At each occurrence, Y is independently chosen from a bond and —C≡C—. At each occurrence, R² is independently chosen from a bond, a substituted or unsubstituted phenylene, thiophenylene, azulenylene, heptalenylene, biphenylene, indacenylene, fluorenylene, phenanthrenylene, triphenylenylene, pyrenylene, naphthacenylene, chrysenylene, biphenylenylene, anthracenylene, and naphthylene. At each occurrence, Z is independently chosen from a bond and —C≡C—. The variables j, R³, and R⁴ are as defined herein.

The invention discloses amine derivatives and an OLED (organic light-emitting diode) containing the same, and relates to the technical field of organic optoelectronic materials. The amine derivativesare of an electron-rich system, have larger conjugated structure and show better hole transport performance. Besides, the amine derivatives have higher light refractive index, and can effectively increase luminous efficiency of the device when used as an optical extraction layer of the OLED. Furthermore, the amine derivatives have larger rigid structure due to introduction of large triphenylene, glass transition temperature and heat stability of the material are increased effectively, and film forming of the material is facilitated. The OLED comprises an anode, a cathode and an organic matterlayer, wherein the organic matter layer is located between the anode and the cathode and contains the amine derivatives. The OLED has lower driving voltage, higher luminous efficiency and longer service life.

The present invention relates to a 1, 5, 9-trisubstituted coronene compound and a synthesis method thereof. The structural formula of the compound is shown in img file = 'dest _ path _ image 001. TIF 'wi = '109 'he = '108', wherein R represents H, C1-C18 alkyl, phenyl, 4-methylphenyl, 4-methoxy phenyl, benzyl, cyclohexyl, 4-trifluoromethylphenyl, thiophene, furan and the like. According to the technical scheme of the invention, the easily prepared 1, 5, 9-triamido triphenylene is subjected to diazotization and halogenation reaction to obtain the tri-halogenated triphenylene. After that, the tri-halogenated triphenylene is subjected to Sonogashira reaction with various alkynes to generate atriyne-triphenylene compounds. Finally, through the metal-catalyzed reaction and the cyclization reaction under the effect of an organic base, various 1, 5, 9-trisubstituted coronene compounds, novel in structure, can be obtained. According to the technical scheme of the invention, raw materials are easy for mass preparation. Meanwhile, the synthesis step is relatively short and the operation is convenient. The obtained trisubstituted coronene compound is good in thermal stability and chemical stability, and the trisubstituted coronene emits the relatively strong fluorescence within the range of 420-550 nm according to the fluorescence emission spectrum of the trisubstituted coronene compound. Therefore, the trisubstituted coronene is an excellent fluorescent material for preparing UV ultraviolet charge-coupled devices (UV-CCD) and organic light-emitting diodes (OLEDs), and has a wide application prospect in the field of electronic materials.

The present invention provides a novel compound represented by general formula (I) below, a method of manufacturing the same and an organic electroluminescent device employing the same;

where R¹ to R⁶ are independent of one another and are each a hydrogen atom or a substituent represented by general formula (II) below, and at least one of R¹ to R⁶ is a substituent represented by general formula (II):

—C≡C—SiR^aR^bR^c  (II)

where R^a, R^b and R^c are independent of one another and are each an aliphatic hydrocarbon group having 1 to 10 carbon atoms or an aromatic hydrocarbon group.

The invention discloses an arylamine derivative and an organic light-emitting device, and relates to the technical field of organic photoelectric materials. The arylamine derivative is an electron-rich system, and has a large conjugation structure, and hole transport performance is good. In addition, the light refraction index of the arylamine derivative is high, and when the arylamine derivativeis used as a light taking-out layer of the organic light-emitting device, the light exiting efficiency of the device can be improved effectively. In addition, the arylamine derivative has a large rigid structure due to introduction of large-size triphenylene, the glass transition temperature and thermal stability of the material are improved effectively, and film forming of the material is facilitated. The organic light-emitting device comprises an anode, a cathode and an organic matter layer, and the organic matter layer is positioned between the anode and the cathode, and comprises the arylamine derivative. The organic light-emitting device has low driving voltage, high light-emitting efficiency and long service life.

The present invention discloses a indenotriphenylene-based amine derivative is represented by the following formula(I), the organic EL device employing the derivative as hole transport material, electron blocking material, can increasing efficiency and half-life time.

wherein R₁ to R₄, p, X, A ring, L and Ar are the same definition as described in the present invention.