摘要:
This light emitting device includes a pair of electrodes at least one of which is transparent or translucent, and a phosphor layer that is sandwiched between the electrodes and has a polycrystalline structure made of a first semiconductor material, and in this structure, a second semiconductor material different from the first semiconductor material is segregated on a grain boundary of the polycrystalline structure. The first semiconductor material and the second semiconductor material preferably have semiconductor structures of conduction types that are different from each other. Moreover, the first semiconductor material preferably has an n-type semiconductor structure, and the second semiconductor material preferably has a p-type semiconductor structure. Furthermore, in the case where the first semiconductor material is a zinc-based material containing zinc, at least one of the paired electrodes is preferably made of a material containing zinc.
摘要:
A linear light-emitting device is provided with a pair of first and second linear electrodes opposing each other, and a linear phosphor layer is sandwiched between the paired electrodes, with at least one of the paired first and second electrodes being a transparent electrode, and the phosphor layer has a polycrystalline structure made from a first semiconductor substance, with a second semiconductor substance different from the first semiconductor substance being segregated on a grain boundary of the polycrystalline structure.
摘要:
A display device is provided with a pair of a first electrode and a second electrode at least one of which is transparent or translucent and a phosphor layer formed so as to be sandwiched between the first electrode and the second electrode, and the phosphor layer has a polycrystal structure made of a first semiconductor substance in which a second semiconductor substance different from the first semiconductor substance is segregated on a grain boundary of the polycrystal structure, and the phosphor layer has a plurality of pixel regions that are selectively allowed to emit light in a predetermined range thereof and non-pixel regions that divide at least one portion of the pixel regions.
摘要:
A light emitting device having a straight-line shape is provided with: a pair of first and second electrodes each having a straight-line shape which face each other; and a phosphor layer having a straight-line shape provided so as to be sandwiched between the pair of electrodes, wherein at least one of the pair of first and second electrodes is a transparent electrode, at least one buffer layer is provided so as to be sandwiched between the first or second electrode and the phosphor layer, and the buffer layer makes the height of a potential barrier between the electrode and the phosphor layer which sandwich the buffer layer lower than the height of a Schottky barrier when the electrode and the phosphor layer are brought into direct contact.
摘要:
A light emitting device having a straight-line shape is provided with: a pair of first and second electrodes each having a straight-line shape which face each other; and a phosphor layer having a straight-line shape provided so as to be sandwiched between the pair of electrodes, wherein at least one of the pair of first and second electrodes is a transparent electrode, at least one buffer layer is provided so as to be sandwiched between the first or second electrode and the phosphor layer, and the buffer layer makes the height of a potential barrier between the electrode and the phosphor layer which sandwich the buffer layer lower than the height of a Schottky barrier when the electrode and the phosphor layer are brought into direct contact.
摘要:
A light emitting device of the invention includes an electron transporting layer, a hole transporting layer provided mutually facing the electron transporting layer with a distance between the hole transporting layer and the electron transporting layer, a phosphor layer having a layer of a plurality of semiconductor fine particles sandwiched between the electron transporting layer and the hole transporting layer, a first electrode provided facing the electron transporting layer and connected electrically, and a second electrode provided facing the hole transporting layer and connected electrically: in which the semiconductor fine particles composing the phosphor layer have a p-type part and an n-type part inside of the particles and have a pn-junction in the interface of the p-type part and the n-type part and are arranged in a manner that the p type part is partially brought into contact with the hole transporting layer and at the same time, the n type part is partially brought into contact with the electron transporting layer.
摘要:
This light-emitting device includes a first electrode, a second electrode disposed opposite to the first electrode and a phosphor layer which is sandwiched between the first electrode and the second electrode and constituted by dispersing n-type semiconductor particles in a p-type semiconductor medium. A light-emitting device in another embodiment includes a first electrode, a second electrode disposed opposite to the first electrode and a phosphor layer which is sandwiched between the first electrode and the second electrode wherein a p-type semiconductor is segregated among the n-type semiconductor particles.
摘要:
A display is provided with: a substrate; a plurality of parallel scan wires extending over the substrate in a first direction; a plurality of parallel data wires extending parallel to a surface of the substrate in a second direction perpendicular to the first direction; at least one switching element per intersection between the scan wires and the data wires; pixel electrodes connected to the switching elements; at least one phosphor layer provided above the pixel electrodes; and common electrodes provided above the phosphor layer, and the phosphor layer has a polycrystalline structure made of a first semiconductor material and a second semiconductor material segregated between grain boundaries in the polycrystalline structure, which is different from the first semiconductor material.
摘要:
This light emitting device includes a pair of electrodes at least one of which is transparent or translucent, and a phosphor layer that is sandwiched between the electrodes and has a polycrystalline structure made of a first semiconductor material, and in this structure, a second semiconductor material different from the first semiconductor material is segregated on a grain boundary of the polycrystalline structure. The first semiconductor material and the second semiconductor material preferably have semiconductor structures of conduction types that are different from each other. Moreover, the first semiconductor material preferably has an n-type semiconductor structure, and the second semiconductor material preferably has a p-type semiconductor structure. Furthermore, in the case where the first semiconductor material is a zinc-based material containing zinc, at least one of the paired electrodes is preferably made of a material containing zinc.
摘要:
A display device is provided with a pair of a first electrode and a second electrode, at least one electrode of the first and second electrodes being transparent or translucent and a phosphor layer provided as being sandwiched between the first electrode and the second electrode, and at least one buffer layer provided as being sandwiched between the first or second electrode and the phosphor layer, and the phosphor layer has a plurality of pixel regions that are selectively allowed to emit light in a predetermined range thereof and non-pixel regions that divide at least one portion of the pixel regions, and wherein the buffer layer is sandwiched between the first or second electrode and the phosphor layer so that the size of an electric potential barrier between the first or second electrode and the phosphor layer via the buffer layer is made smaller than the size of a Schottky barrier between the first or second electrode and the phosphor layer that are directly made contact with each other without the buffer layer therebetween.