摘要:
A light emitting device (10) of the present invention includes luminescent particles (14) and a pair of electrodes (12, 16) for injecting an electric current into the luminescent particles (14). An inorganic hole transport material (15) is disposed between the electrodes (12, 16). The luminescent particles (14) are dispersed in the inorganic hole transport material (15). Conductive fine particles may be adhered to at least a part of the surfaces of the luminescent particles (14) for the purpose of achieving further high brightness and high efficiency.
摘要:
A phosphor element is provided with a first electrode and a second electrode. The electrodes are arranged to face each other, and at least one of the electrodes is transparent or semi-transparent. The phosphor element is also provided with a phosphor layer, which is sandwiched between the first electrode and the second electrode and has phosphor particles dispersed in a medium made of a hole transport material. Conductive nano particles are held on the surface of each of the phosphor particles.
摘要:
A light emitting device (10) of the present invention includes luminescent particles (14) and a pair of electrodes (12, 16) for injecting an electric current into the luminescent particles (14). An inorganic hole transport material (15) is disposed between the electrodes (12, 16). The luminescent particles (14) are dispersed in the inorganic hole transport material (15). Conductive fine particles may be adhered to at least a part of the surfaces of the luminescent particles (14) for the purpose of achieving further high brightness and high efficiency.
摘要:
A light emitting device (10) of the present invention includes: a back electrode (2) as a first electrode and a transparent electrode (3) as a second electrode facing each other, at least one of the back electrode and the transparent electrode having transparency to light; and luminescent particles (4) provided between the back electrode (2) and the transparent electrode (3) and connected electrically to the back electrode (2) and the transparent electrode (3). The back electrode (2) as the first electrode has recesses in a surface thereof facing the transparent electrode (3).
摘要:
A light emitting device (10) of the present invention includes: a back electrode (2) as a first electrode and a transparent electrode (3) as a second electrode facing each other, at least one of the back electrode and the transparent electrode having transparency to light; and luminescent particles (4) provided between the back electrode (2) and the transparent electrode (3) and connected electrically to the back electrode (2) and the transparent electrode (3). The back electrode (2) as the first electrode has recesses in a surface thereof facing the transparent electrode (3).
摘要:
Disclosed is a light emitting device including a pair of electrodes at least one of which is transparent or semi-transparent, and a phosphor layer arranged between the pair of electrodes. The phosphor layer contains phosphor particles dispersed therein, and conductive nano particles are interposed at the interface between the phosphor layer and one of the electrodes. Also disclosed is another light emitting device including a pair of electrodes at least one of which is transparent or semi-transparent, and a phosphor layer arranged between the pair of electrodes. In this light emitting device, the phosphor layer contains phosphor particles dispersed therein, and at least one of the pair of electrodes is provided with a brush-like electrode projecting towards the phosphor layer. The brush-like electrode may be provided on the electrode on the positive electrode side, and the brush-like electrode provided on the electrode on the positive electrode side may preferably have a work function of 4.5 eV or more.
摘要:
Disclosed is a light-emitting device including a first electrode and a second electrode arranged facing each other, at least one of the electrodes being transparent or semi-transparent, and a phosphor layer provided as being sandwiched between the first electrode and the second electrode. In the phosphor layer, conductive nano particles and phosphor particles are dispersed in a matrix including a hole-transporting material. Also disclosed is another light-emitting device including a first electrode and a second electrode arranged facing each other, at least one of the electrodes being transparent or semi-transparent, and a phosphor layer sandwiched between the first electrode and the second electrode. This phosphor layer includes a phosphor particle powder containing phosphor particles, the phosphor particle having at least surface covered with a coating layer, the coating layer including a hole transport material and conductive nano particles dispersed in the hole transport 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 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:
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.