Abstract: The invention relates to co-activated magnesium alumosilicate based phosphors, to a process of its preparation, the use of these phosphors in electronic and electro optical devices, such as light emitting diodes (LEDs) and solar cells and especially to illumination units comprising said magnesium alumosilicate-based phosphors.

Abstract: The invention relates to a polymer film comprising an inorganic fluorescent compound and an organic fluorescent compound. The invention further relates methods for preparing such a film, and to its use as wavelength conversion film in a solar cell.

Abstract: The invention relates to co-activated magnesium alumosilicate based phosphors, to a process of its preparation, the use of these phosphors in electronic and electro optical devices, such as light emitting diodes (LEDs) and solar cells and especially to illumination units comprising said magnesium alumosilicate-based phosphors.

Abstract: The invention relates to co-activated silicate based phosphors and a process for preparing these phosphors and the use of these phosphors in electronic and electrooptical devices, especially light emitting diodes (LEDs) and solar cells. The invention further relates to illumination units comprising said phosphors.

Abstract: The invention relates to a polymer film comprising an inorganic fluorescent compound and an organic fluorescent compound. The invention further relates methods for preparing such a film, and to its use as wavelength conversion film in a solar cell.

Abstract: The invention relates to co-activated silicate based phosphors. The invention further relates to the method of preparing these phosphors and to the use of these phosphors in electronic and electrooptical devices, in particular in light emitting diodes (LEDs) and solar cells. The invention further relates to illumination units comprising said phosphors.

Abstract: The invention relates to co-activated silicate based phosphors. The invention further relates to the method of preparing these phosphors and to the use of these phosphors in electronic and electrooptical devices, in particular in light emitting diodes (LEDs) and solar cells. The invention further relates to illumination units comprising said phosphors.

Abstract: Provided is a heating crucible for an organic thin film forming apparatus, the heating crucible including a main body in which to contain an organic substance, a cover provided on the main body, the cover formed of an insulating material and having a nozzle through which a gaseous organic substance comes out from the main body, a cover heater formed as a thin film type on the top surface of the cover, and a body heater heating the main body.

Abstract: An organic electroluminescence element has an anode, a hole transport layer, a light emitting layer made of organic compounds, an electron transport layer and a cathode. The light emitting layer comprises an organic host material having an electron transport capability and an organic guest material of phosphorescent material. An ionization potential energy of the organic host material is higher than that of the hole transport layer. The difference in the ionization potential energy between the organic host material of the light emitting layer and the hole transport layer is in a range from 0.4 eV to 0.8 eV.

Abstract: An organic electroluminescent display (EL) device including a substrate, a transparent electrode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode, sequentially stacked, wherein assuming that the sum of a geometric thickness of the electron transport layer, a geometric thickness of the light emitting layer is denoted by l1, the l1 with a maximum of luminance is denoted by a peak_l1, the sum of a geometric thickness of the hole transport layer and a geometric thickness of the transparent electrode is denoted by l2, the geometric thickness of the hole transport layer is denoted by d(HTL), the d(HTL) with a maximum or minimum of luminance is denoted by a peak_d(HTL), the l1 is set to have an maximum of luminance and l2 is set such that a thickness distribution according to colors of red, green and blue at the peak_l2 is within the range of 30 nm, respectively.

Abstract: An organic semiconductor diode comprises a hole transport layer which is arranged on an anode side and formed of an organic compound having a hole transport capability, and an electron transport layer which is arranged on a cathode side and formed of an organic compound having an electron transport capability. The hole transport layer and the electron transport layer are laminated one upon another. The cathode has a work function close to or smaller than the electron affinity of the electron transport layer, while the anode has a work function larger than that of the cathode. The organic semiconductor diode exhibits nonlinear current-voltage characteristics when a voltage is applied between the hole transport layer and the electron transport layer in contact with each other.

Abstract: An organic semiconductor diode includes at least one hole transport layer which is arranged on an anode side and formed of an organic compound having a hole transport capability, and at least one electron transport layer which is arranged on a cathode side and formed of an organic compound having an electron transport capability. The at least one hole transport layer and the at least one electron transport layer are laminated one upon another. The organic semiconductor diode exhibits nonlinear current-voltage characteristics when a voltage is applied between the hole transport layer and the electron transport layer in contact with each other. The hole transport layer at an anode-side end has an ionization potential larger than an electron affinity of the electron transport layer at a cathode side end.

Abstract: An organic electroluminescence element is comprised of a laminate of an anode, a light emitting layer made of an organic compound including phosphorescent materials, an electron transport layer made of an organic compound, and a cathode In the electroluminescence element, a hole blocking layer made of a specific aluminium chelate complex is laminated between the light emitting layer and the electron transport layer.

Abstract: An organic electroluminescence element has an anode, a hole transport layer, a light emitting layer made of organic compounds, an electron transport layer and a cathode. The light emitting layer comprises an organic host material having an electron transport capability and an organic guest material of phosphorescent material. An ionization potential energy of the organic host material is higher than that of the hole transport layer. The difference in the ionization potential energy between the organic host material of the light emitting layer and the hole transport layer is in a range from 0.4 eV to 0.8 eV.

Abstract: An organic electroluminescent display (EL) device including a substrate, a transparent electrode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode, sequentially stacked, wherein assuming that the sum of a geometric thickness of the electron transport layer, a geometric thickness of the light emitting layer is denoted by l1, thel 1 with a maximum of luminance is denoted by a peak_l1, the sum of a geometric thickness of the hole transport layer and a geometric thickness of the transparent electrode is denoted by l2, the geometric thickness of the hole transport layer is denoted by d(HTL), the d(HTL) with a maximum or minimum of luminance is denoted by a peak_d(HTL), the l1 is set to have an maximum of luminance and l2 is set such that a thickness distribution according to colors of red, green and blue at the peak_l2 is within the range of 30 nm, respectively.

Abstract: An organic semiconductor diode includes at least one hole transport layer which is arranged on an anode side and formed of an organic compound having a hole transport capability, and at least one electron transport layer which is arranged on a cathode side and formed of an organic compound having an electron transport capability. The at least one hole transport layer and the at least one electron transport layer are laminated one upon another. The organic semiconductor diode exhibits nonlinear current-voltage characteristics when a voltage is applied between the hole transport layer and the electron transport layer in contact with each other. The hole transport layer at an anode-side end has an ionization potential larger than an electron affinity of the electron transport layer at a cathode side end.

Abstract: An organic semiconductor diode comprises a hole transport layer which is arranged on an anode side and formed of an organic compound having a hole transport capability, and an electron transport layer which is arranged on a cathode side and formed of an organic compound having an electron transport capability. The hole transport layer and the electron transport layer are laminated one upon another. The organic semiconductor diode exhibits nonlinear current-voltage characteristics when a voltage is applied between the hole transport layer and the electron transport layer in contact with each other.

Abstract: An organic semiconductor diode comprises a hole transport layer which is arranged on an anode side and formed of an organic compound having a hole transport capability, and an electron transport layer which is arranged on a cathode side and formed of an organic compound having an electron transport capability. The hole transport layer and the electron transport layer are laminated one upon another. The cathode has a work function close to or smaller than the electron affinity of the electron transport layer, while the anode has a work function larger than that of the cathode. The organic semiconductor diode exhibits nonlinear current-voltage characteristics when a voltage is applied between the hole transport layer and the electron transport layer in contact with each other.

Abstract: An organic electroluminescence element has a laminate of an anode, a hole injecting layer made of an organic compound and laminated in contact with said anode, a light emitting layer made of an organic compound, an electron transport layer made of an organic compound, and a cathode. The light emitting layer comprises of a carbasol compound as a main component and includes a iridium complex compound at a concentration of 0.5 wt % to 8 wt %.

Abstract: An organic electroluminescence element has a laminate of an anode, a hole injecting layer made of an organic compound and laminated, a light emitting layer made of an organic compound, an electron transport layer made of an organic compound, and a cathode. The light emitting layer includes a phosphorescent material. The hole injecting layer is made of a specific porphyrin compound.