Abstract: An apparatus of salt cavern gas storage without cushion gas includes: a salt cavern; sediments; a drainage assembly; a gas injection and production pipe; a debrining string, one end of which is connected to the drainage assembly, and the other end of which protrudes from the ground to be connected to a water source assembly; a communicating assembly, which is used to make the gas injection and production pipe be in communication with the debrining string on the ground. A closed loop is formed by making the gas injection and production pipe and the debrining string be in communication with each other on the ground through the communicating assembly, thus the non-cushion gas injection-production operation of sediment particles in the salt cavern is realized.

Abstract: The present invention provides a compound having the following formula (I): R2 is an electron withdrawing group; A represents a structure with 0 to 20 benzene rings connected in sequence, R1 is an electron donating group or to form a cyclic electron donating group with parts of C atoms of the last benzene ring. The present invention also provides an organic layer of OLED devices. The present invention also provides a method for synthesizing the compound represented by formula (I). The OLED material with the novel structure provided by the present invention can be applied to an electron-transporting layer, a light emitting layer, a hole transporting layer. Hence, the display devices consisting of the aforesaid OLED material have the advantages of swift response, low power consumption, and wide viewing angle.

Abstract: The present invention provides a compound having the following formula (I): R2 is an electron withdrawing group; A represents a structure with 0 to 20 benzene rings connected in sequence, R1 is an electron donating group or to form a cyclic electron donating group with parts of carbon atoms of the last benzene ring. The present invention also provides an organic layer of OLED devices. The present invention also provides a method for synthesizing the compound represented by formula (I). The OLED material with the novel structure provided by the present invention can be applied to an electron-transporting layer, a light emitting layer, a hole transporting layer. Hence, the display devices consisting of the aforesaid OLED material have the advantages of swift response, low power consumption, and wide viewing angle.

Abstract: The present invention provides an organic electroluminescent material, the process for preparing same and an OLED device using same. The organic electroluminescent material has a general formula (I): wherein, each of R1, R2, R3 and R4 is independently selected from the group consisting of H, C1-C20 alkyl, C1-C20 alkoxy, ether groups and aromatic amino groups; each of Z is carbon atom or each of Z is nitrogen atom; R is carbazolyl, wherein, n is an integer ranging from 1 to 3 when each of Z is carbon atom, and n is an integer ranging from 1 to 2 when each of Z is nitrogen atom. The organic electroluminescent material of the invention can be used as emitting layer material in an OLED device and improve the luminescent efficiency and lifetime of the device. The luminescence spectral peakmay be adjusted by changing the group on the molecular structure.

Abstract: The present invention provides an organic electroluminescent material, the process for preparing same and an OLED device using same. The organic electroluminescent material has a general formula (I): wherein, each of R1, R2, R3 and R4 is independently selected from the group consisting of H, C1-C20 alkyl, C1-C20 alkoxy, ether groups and aromatic amino groups; each of Z is carbon atom or each of Z is nitrogen atom; R is carbazolyl, wherein, n is an integer ranging from 1 to 3 when each of Z is carbon atom, and n is an integer ranging from 1 to 2 when each of Z is nitrogen atom. The organic electroluminescent material of the invention can be used as emitting layer material in an OLED device and improve the luminescent efficiency and lifetime of the device. The luminescence spectral peak may be adjusted by changing the group on the molecular structure.