Abstract: A sample measurement method is a sample measurement method by an electron microscope and includes the film formation step of forming a sample on a projection on the major surface of a substrate, the electron beam irradiation step of irradiating the sample with an electron beam from a side of the projection, and the measurement step of detecting an electron beam which is generated or reflected from or has passed through the sample irradiated with the electron beam. Since the sample is formed on the projection on the major surface of the substrate, the sample on the projection can be formed as a thin film. For this reason, sample measurement can be executed only by irradiating the sample from a side of the projection.

Abstract: The present invention aims at providing a novel oxide fluorescent material. The novel oxide fluorescent material is a fluorescent material including: as constituent elements, at least one or more elements selected from the group consisting of Mg, Ca, Sr and Ba; at least one or more elements selected from the group consisting of Si and Ge; at least one or more elements selected from the group consisting of rare earth elements; and oxygen, wherein the crystal structure is a pseudowollastonite crystal structure. The fluorescent substance includes a layer 54 comprised of the fluorescent material and a layer 52 including at least one or more elements selected from the group consisting of Si and Ge, the layers stacked on a substrate 51. The fluorescent substance includes an adjacent layer that includes at least one or more elements selected from the group consisting of Si and Ge and is in contact with the portion constituted by the fluorescent material.

Abstract: An EL element 1 comprises EL functional layers 6, 10 comprising Ga2O3:Eu between a thick film insulator layer 16 and an upper electrode 12 provided on a substrate 2 on which a lower electrode 4 was formed and a light-emitting layer 8 comprising MgGa2O4 formed therebetween. The EL functional layers 6, 10 have the dual functions of insulating layers and electron doping layers. Due to this, the EL element 1 has a low drive voltage and high light-emitting brightness, and the structure of the EL element is simplified.

Abstract: A sputtering target for fluorescent thin-film formation comprising a matrix material and a luminescent center material, wherein said matrix material has a chemical composition represented by the following formula (1), and simultaneously satisfies conditions represented by the following inequalities (2) to (5). MIIvAxByOzSw ??(1) 0.05?v/x?5 ??(2) 1?y/x?6 ??(3) 0.01?z/(z+w)?0.85 ??(4) 0.6?(v+x+3y/2)/(z+w)?1.5 ??(5) wherein MII represents one or more elements selected from the group consisting of Zn, Cd and Hg, A represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba and rare earth elements, B represents one or more elements selected from the group consisting of Al, Ga and In, and v, x, y, z and w each represent numerical values satisfying the conditions specified in the inequalities (2) to (5).

Abstract: In a phosphor thin film comprising a matrix material and a luminescence center, the matrix material has the compositional formula: MIIvAxByOzSw wherein MII is Zn, Cd or Hg, A is Mg, Ca, Sr, Ba or rare earth element, B is Al, Ga or In, and atomic ratios v, x, y, z and w are 0.005?v?5, 1?x?5, 1?y?15, 0<z?30, and 0<w?30. The phosphor thin film of quality is formed at low cost by a low-temperature process, enabling manufacture of full-color EL panels.

Abstract: A phosphor thin film is provided that has a high luminance, a satisfactory color purity sufficient to eliminate a need for filters, and a long luminance life. The phosphor thin film can be adapted to suit each element of red, green and blue in full color EL panels. The phosphor thin film includes a matrix material and a luminescent center. The matrix material is a sulfide containing at least an alkaline earth element, Ga and/or In, sulfur (S) and optionally, Al, or an oxysulfide further containing oxygen (O) in addition to the foregoing elements. Provided that A stands for the alkaline earth element and B stands for Ga, In and Al in the matrix material, the atomic ratio B/A is in the range: B/A=2.1 to 3.5.

Abstract: The present invention aims at providing a phosphor thin film capable of realizing a light-emitting device attaining an excellent response, favorable color purity, and emission with a high luminance; and an EL panel including the same. The EL panel including the phosphor thin film of the present invention comprises a substrate, and a lower electrode, an insulating layer, an EL phosphor laminate thin film, and an upper electrode which are successively laminated on the substrate. In the EL phosphor laminate thin film, buffer thin films are formed on both sides of a phosphor thin film comprising a matrix material which is essentially constituted by magnesium gallate and doped with a rare-earth element or the like, and electron injection thin films are further formed on both sides thereof.

Abstract: A light-emitting material includes a matrix section 12 and light-emitting sections 11 dispersed and buried in the matrix section. The matrix section 12 comprises a first material and the light-emitting sections comprise a second material showing a eutectic relationship with the first material.

Abstract: A sample measurement method is a sample measurement method by an electron microscope and includes the film formation step of forming a sample on a projection on the major surface of a substrate, the electron beam irradiation step of irradiating the sample with an electron beam from a side of the projection, and the measurement step of detecting an electron beam which is generated or reflected from or has passed through the sample irradiated with the electron beam. Since the sample is formed on the projection on the major surface of the substrate, the sample on the projection can be formed as a thin film. For this reason, sample measurement can be executed only by irradiating the sample from a side of the projection.

Abstract: The present invention aims at realizing a phosphor thin film having a high luminance with a low emission threshold voltage, and an EL element comprising the same. The EL element of the present invention comprises a substrate, and a lower electrode, a lower buffer thin film containing a sulfide such as ZnS, a phosphor thin film containing an oxide such as a gallate as a matrix material, an upper buffer thin film containing a sulfide such as ZnS, and an upper electrode which are successively laminated on the substrate.

Abstract: The invention provides a phosphor thin film having a high luminance, a satisfactory color purity enough to eliminate a need for filters, and a long luminance life, and best suited for each element of RGB in full color EL panels. The phosphor thin film of the invention comprises a matrix material and a luminescent center. The matrix material is an oxysulfide containing at least an alkaline earth element, Ga and/or In, sulfur (S) and oxygen (O). In the matrix material, the atomic ratio of oxygen to the total of oxygen and sulfur, O/(S+O), is from 0.1 to 0.85.

Abstract: The invention has for its object to provide an EL phosphor multilayer thin film and EL device which can emit light with improved luminance. This object is achieved by the provision of an EL phosphor multilayer thin film wherein a phosphor thin film and a dielectric thin film are stacked one upon another. The phosphor thin film comprises a matrix material containing as a main component at least one compound selected from an alkaline earth thioaluminate, an alkaline earth thiogallate and an alkaline earth thioindate, and an rare earth element as a luminescent center, and the dielectric thin film comprises an alkaline earth oxide. There is also provided an EL device comprising such an EL phosphor multilayer thin film.

Abstract: An object of the invention is to provide an EL phosphor laminate thin film and EL device which can emit light at a high luminance. The object is achieved by stacking a phosphor thin film and a dielectric thin film one on the other wherein the phosphor thin film comprises at least one compound selected from an alkaline earth thioaluminate, an alkaline earth thiogallate and an alkaline earth thioindate as a main component, and a rare earth element as a luminescence center, and the dielectric thin film comprises an alkaline earth-containing oxide and/or a titanium-containing oxide.

Abstract: The present invention aims at providing a phosphor thin film capable of realizing a light-emitting device attaining an excellent response, favorable color purity, and emission with a high luminance; and an EL panel including the same. The EL panel including the phosphor thin film of the present invention comprises a substrate, and a lower electrode, an insulating layer, an EL phosphor laminate thin film, and an upper electrode which are successively laminated on the substrate. In the EL phosphor laminate thin film, buffer thin films are formed on both sides of a phosphor thin film comprising a matrix material which is essentially constituted by magnesium gallate and doped with a rare-earth element or the like, and electron injection thin films are further formed on both sides thereof.

Abstract: The present invention aims at realizing a phosphor thin film having a high luminance with a low emission threshold voltage, and an EL element comprising the same. The EL element of the present invention comprises a substrate, and a lower electrode, a lower buffer thin film containing a sulfide such as ZnS, a phosphor thin film containing an oxide such as a gallate as a matrix material, an upper buffer thin film containing a sulfide such as ZnS, and an upper electrode which are successively laminated on the substrate.

Abstract: The invention aims to provide a phosphor thin film eliminating a need for filters, having a satisfactory color purity, suited for RGB in full-color EL displays, enabling to simplify the manufacture process of full-color EL panels, and offering the advantages of minimized variation of luminance, increased yields, and reduced manufacture cost, a method for preparing the same and an EL panel. Such objects are achieved by a phosphor thin film formed of a matrix material comprising an oxysulfide consisting of at least one compound selected from rare earth thioaluminates, rare earth thiogallates and rare earth thioindates, in which oxygen is incorporated, the matrix material further containing an element serving as a luminescent center, a method for preparing the same, and an EL panel using the same.

Abstract: The invention aims to provide a phosphor thin film eliminating a need for filters, having a satisfactory color purity, suited for RGB in full-color EL displays, enabling to simplify the manufacture process of full-color EL panels, and offering the advantages of minimized variation of luminance, increased yields, and reduced manufacture cost, a method for preparing the same and an EL panel. Such objects are achieved by a phosphor thin film formed of a matrix material comprising an oxysulfide consisting of at least one compound selected from alkaline earth thiogallates and alkaline earth thioindates, in which oxygen is incorporated, the matrix material further containing an element serving as a luminescent center, a method for preparing the same, and an EL panel using the same.

Abstract: The invention has for its object to provide a phosphor thin film which can dispense with any filter and has satisfactory color purity, is particularly well fit for RGB full-color Els, and simplifies a full-color EL panel production process, thereby providing a phosphor thin film which is less susceptible to luminance variations and can be produced in improved yields and so at lower costs and its fabrication process as well as an EL panel. This is achieved by the provision of a phosphor thin film comprising a matrix material containing as a main component an alkali earth aluminate that is an oxide, with sulfur added to the matrix material, and further containing an element that provides a luminescentce center.

Abstract: In a phosphor thin film comprising a matrix material and a luminescence center, the matrix material has the compositional formula: MIIvAxByOzSw wherein MII is Zn, Cd or Hg, A is Mg, Ca, Sr, Ba or rare earth element, B is Al, Ga or In, and atomic ratios v, x, y, z and w are 0.005≦v≦5, 1≦x≦5, 1≦y≦15, 0<z≦30, and 0<w≦30. The phosphor thin film of quality is formed at low cost by a low-temperature process, enabling manufacture of full-color EL panels.

Abstract: A phosphor thin film made of a matrix material comprising an alkaline earth sulfide and a luminescence center and having a thickness of 50-300 nm emits light, especially red light, of a good color purity at a high luminance and in a good response and enables to produce an EL panel.