Abstract: Disclosed are an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device is a top-emitting organic electroluminescent device having a reversed structure, and the preparation method is: dissolving zinc oxide with acetic acid to obtain a zinc oxide solution with a concentration of 0.3 g/ml-0.6 g/ml, adding a phthalocyanine substance in a mass of 1%-10% of the mass of the zinc oxide to obtain a mixture, spin-coating the mixture on a glass substrate (1) and then drying to obtain a cathode (2), and then preparing by vapor deposition, an electron injection layer (3), an electron transport layer (4), a luminescent layer (5), a hole transport layer (6), a hole injection layer (7) and an anode (8), successively, so as to obtain the organic electroluminescent device.

Abstract: A titanate luminescent material has a formula of A1-xTiO3:Prx@TiO2@My; wherein A is at least one selected from the group consisting of Ca, Sr, and Ba; M is at least one nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.01; y is the molar ratio between M and Ti in A1-xTiO3:Prx@TiO2, and 0<y?1×10?2; @ represents coating; M is a core, TiO2 is an intermediate layer shell, and A1-xTiO3:Prx is an outer layer shell. The titanate luminescent material has a high stability and a better luminescent performance. A preparation method of the titanate luminescent material is also provided.

Abstract: The present invention provides a stannate fluorescent material having a formula: A2-xSnO4:Eux@SnO2@My; wherein A is selected from the group consisting of Ca, Sr, and Ba; M is at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.05; y is a mole ratio of M to Sn, and 0<y?1×10?2; @ represents coating, in the stannate fluorescent material, M serves as a core, SnO2 serves as an intermediate layer shell, and A2-xSnO4:Eux serves as an outer layer shell. In the stannate fluorescent material, a core-shell structure is formed by coating at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu, since metal nanoparticles can improve the internal quantum efficiency of the fluorescent material, the stannate fluorescent material exhibits a higher luminous intensity.

Abstract: A core-shell structured silicate luminescent material and a preparation method thereof. The molecular formula of the luminescent material is: MLn1-xSiO4:xRE@SiO2; where @ represents a coating, where M is one or two elements among Li, Na, and K, where Ln is one or two elements among Y, Sc, Lu and La, where the value of x is 0<x?0.6; and where RE is one, two, or three elements among Tb, Gd, Sm, Eu, Dy, Ce and Tm. The compositions of the luminescent material are all chemicals of increased chemical stability, and, when subjected to electron beam bombardment for an extended period, provide a stable matrix and do not decompose easily.

Abstract: The present invention relates to a benzodithiophene based copolymer containing thieno[3,4-b]thiophene units and a preparing method and applications thereof. The polymer has a structural formula (I), wherein R1 and R2 are respectively selected from H, and alkyl groups of C1 to C16; R3 and R4 are respectively selected from H, alkyl groups of C1 to C16, alkoxy groups of C1 to C16, or thiophene groups substituted by alkyl groups of C1 to C16; R5 is selected from alkyl groups of C1 to C16; n is a natural number from 7 to 80. Applications of the benzodithiophene based copolymer containing thieno[3,4-b]thiophene units in polymer solar cells, polymer organic light-emission, polymer organic field effect transistors, polymer organic optical storage, polymer organic nonlinear materials or polymer organic laser are also provided.

Abstract: A benzodithiophene based copolymer containing thiophene pyrroledione units, a preparing method thereof, and applications of the copolymer in polymer solar cells, organic light-emitting, organic field effect transistors, organic optical storage, organic nonlinear materials or organic laser.

Abstract: The present invention relates to a benzodithiophene based copolymer containing pyridino[2,1,3]thiadiazole units and a preparing method and applications thereof. The polymer has a structural formula (I), wherein R1 and R2 are respectively selected from H or alkyl groups of C1 to C16; R3 and R4 are respectively selected from H, alkyl groups of C1 to C16, alkoxy groups of C1 to C16, or thiophene groups substituted by alkyl groups of C1 to C16; X is N and Y is CH, or X is CH and Y is N; and n is a natural number of 7 to 80. Applications of the benzodithiophene based copolymer containing pyridino[2,1,3]thiadiazole units in polymer solar cells, polymer organic light-emitting, polymer organic field effect transistors, polymer organic optical storage, polymer organic nonlinear materials or polymer organic laser are also provided.

Abstract: The present invention relates to a benzodithiophene based copolymer containing isoindoline-1,3-diketone units and a preparing method and applications thereof. The polymer has a structural formula (I), wherein R1 and R2 are respectively selected from H or alkyl groups of C1 to C16; R3 and R4 are respectively selected from H, alkyl groups of C1 to C16, alkoxy groups of C1 to C16, or thiophene groups substituted by alkyl groups of C1 to C16; R5 is selected from alkyl groups of C1 to C16; n is a natural number from 7 to 80. Applications of the benzodithiophene based copolymer containing isoindoline-1,3-diketone units in polymer solar cells, polymer organic light-emitting, polymer organic field effect transistors, polymer organic optical storage, polymer organic nonlinear materials or polymer organic laser are also provided.

Abstract: A double-center quaternary ammonium salt ion liquid having the structural formula (I), wherein n=2, 3 or 6, Y? is BF4?, PF6?, (FSO2)2N?, (CF3SO2)2N? or CF3S3?. Also provided is a method for preparing a double-center quaternary ammonium salt ion liquid. The double-center quaternary ammonium salt ion liquid has high stability, and thus an electrolyte containing the double center quaternary ammonium salt ion liquid has a high decomposition voltage.

Abstract: Disclosed is a metal nanoparticle-coating silicate luminescent material, which has a molecular formula of Li2Ca1?xSiO4:Tbx@My; where @ represents a coating, M is at least one among Ag, Au, Pt, Pd, and Cu nanoparticles, where 0<x?0.2, where y is the molar ratio between M and Si, and where 0<y?1×10?2. The composition of the silicate coated metal nanoparticle luminescent material is metal nanoparticles coated with Li2Ca1?xSiO4:Tbx, all of which are substances having great chemical stability and having great stability when bombarded by large electron beams. Also provided in the present invention is a method for preparing the metal nanoparticle coating silicate luminescent material.

Abstract: The present invention relates to a silicate luminescent material and preparation method thereof. The silicate luminescent material has the following general chemical formula: (Ba1-yAy)2-xSiO4: Eux, Dz@Mn, wherein @ represents coating, Mn is a core, (Ba1-yAy)2-xSiO4: Eux, Dz is a shell; A is one or two of Sr, Ca, Mg or Zn; D is either F or Cl; M is at least one of Ag, Au, Pt, Pd and Cu metallic nanoparticles; the value range of x is 0.001<n?1×10?2. The silicate luminescent material is formed into a core-shell structure through the coating of metallic nanoparticles, thus effectively improving internal quantum efficiency of the luminescent material. In addition, the plasma effect on the surface of the metallic nanoparticles greatly improves luminous efficiency of the silicate luminescent material. The preparation method of the silicate luminescent material is simple, pollution free, easy to control, has low requirement for device, and is suitable for industrial production.

Abstract: The present invention relates to a titanate luminescent material and preparation method thereof. The titanate luminescent material has the following chemical formula: Ca1?xTi1?yO3:Prx,Ry@TiO2@Mz, wherein @ represents coating, Mz is a core, TiO2 is an intermediate shell; Ca1?xTi1?yO3:Prx,Ry, is an outer shell, Prx and Ry are doped in Ca1?xTi1?yO3; R is at least one of Al and Ga, and M is at least one of Ag, Au, Pt Pd and Cu metallic nanoparticles; 0<x?0.01, 0<y?0.20, z is a molar ratio between M and the element Ti in the titanate luminescent material, 0<z?1×10?2. The titanate luminescent material is formed into a core-shell structure by doping a charge compensation agent such as ions Al3+, Ga3+ and the like, and encapsulating metallic nanoparticles, thus effectively improving the luminous efficiency of the titanate luminescent material.

Abstract: A stannate luminescent material, having the general molecular formula of Ln2?xEuxSn2O7@SnO2@My, wherein Ln is selected from one of Gd, Y and La; M is selected from at least one of Ag, Au, Pt, Pd and Cu metallic nanoparticles; 0<x<1.5; y is the ratio between the molar mass of M and the sum of the molar mass of Sn in Ln2?xEuxSn2O7 and the molar mass of Sn in SnO2@My, 0<y?1×10?2; and @ represents coating; the stannate luminescent material uses M. as a core, SnO2 as an inner shell, and Ln2?xEuxSn2O7 as an outer shell. The stannate luminescent material is formed into a core-shell structure through the coating of at least one of Ag, Au, Pt, Pd and Cu metallic nanoparticles. The metallic nanoparticles improve the internal quantum efficiency of the luminescent material, thus enabling the stannate luminescent material to have a relatively high luminous intensity.

Abstract: The present invention provides a stannate fluorescent material having a formula: A2-xSnO4:Eux@SnO2@My; wherein A is selected from the group consisting of Ca, Sr, and Ba; M is at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu; 0<x?0.05; y is a mole ratio of M to Sn, and 0<y?1×10?2; @represents coating, in the stannate fluorescent material, M serves as a core, SnO2 serves as an intermediate layer shell, and A2-xSnO4:Eux serves as an outer layer shell. In the stannate fluorescent material, a core-shell structure is formed by coating at least one metal nanoparticles selected from the group consisting of Ag, Au, Pt, Pd, and Cu, since metal nanoparticles can improve the internal quantum efficiency of the fluorescent material, the stannate fluorescent material exhibits a higher luminous intensity.

Abstract: A core-shell structured silicate luminescent material and a preparation method thereof. The molecular formula of the luminescent material is: MLn1-xSiO4:xRE@SiO2; where @ represents a coating, where M is one or two elements among Li, Na, and K, where Ln is one or two elements among Y, Sc, Lu and La, where the value of x is 0<x?0.6; and where RE is one, two, or three elements among Tb, Gd, Sm, Eu, Dy, Ce and Tm. The compositions of the luminescent material are all chemicals of increased chemical stability, and, when subjected to electron beam bombardment for an extended period, provide a stable matrix and do not decompose easily.

Abstract: A solid electrolyte battery comprises a positive plate (1), a negative plate (2), several composite electrode plates (3) and several solid electrolyte (4), wherein the number of the solid electrolyte (4) is one more than the number of the composite electrode plates (3). The positive plate (1) and the negative plate (2) are spaced oppositely, the composite electrode plates (3) are between the positive plate (1) and the negative plate (2), and both sides of the composite electrode plates (3) are laminated with the positive plate (1) and the negative plate (2) by the solid electrolyte (4), respectively, the structure of the solid electrolyte battery is formed.

Abstract: Disclosed is a doped organic electroluminescent device, comprising the following structures laminated in succession: a conductive anode substrate, a hole injecting layer, a hole transportation layer, an electron barrier layer, a light-emitting layer, an electron transportation layer, an electron injecting layer and a cathode; and the material for the electron barrier layer is a hole transportation material doped with a cerium salt. The material for an electron barrier layer in such a doped organic electroluminescent device is a hole transportation material doped with a cerium salt which has a low work function of approximately ?2.0 eV and can effectively block electrons.

Abstract: The present invention relates to a polymeric electroluminescent device and a method for preparing the same. The device comprises a conductive anode substrate, a hole injecting layer, a hole transportation layer, an electron barrier layer, a light-emitting layer, an electron transportation layer, an electron injecting layer and a cathode laminated in succession, and the material for the electron barrier layer is one selected from lithium fluoride, lithium carbonate, lithium oxide and lithium chloride. By preparing lithium compound as an inorganic electron barrier layer, the polymeric electroluminescent device is made of cheap materials which are easily obtainable, and most importantly has a low work function of approximately 2.0 eV, which can form a transition potential barrier of approximately 1.

Abstract: Disclosed is an active material for a counter-electrode. The material comprises a carbon aerogel and platinum loaded on the carbon aerogel, the platinum having a mass content of 1% to 5% in the active material for a counter-electrode. The active material for a counter-electrode has a relatively high photoelectric conversion efficiency. In addition, also provides are a method for preparing the active material for a counter-electrode, a solar cell counter-electrode using the active material for a counter-electrode and a method for preparing the solar cell counter-electrode.

Abstract: The invention belongs to the field of luminescent materials. Disclosed are silicate luminescent materials doped with metal nano particles and preparation methods there for. The silicate luminescent materials doped with metal nano particles are represented by the chemical formula:MLn1-xSiO4:xRE,yA; wherein M is one or two elements selected from Li, Na and K; Ln is one or two elements selected from Y, Sc, La and Lu; A is a metal nano particle selected from Ag, Au, Pt, Pd and Cu; RE is one or two ions selected from Eu, Gd, Tb, Tm, Sm, Ce and Dy; 0<x?0.1; 0<y?0.005. When silicate luminescent materials doped with metal nano particles of the invention are excitated by electron beam, they have higher luminescent efficiency. The luminescent materials are good to be used in field emission light source devices.