Abstract:
A semiconductor light emitting device includes a Group-III nitride semiconductor layer on a buffer layer. The buffer layer includes a first layer, a second layer, and a third layer in that order. Each of the first layer, the second layer, and the third layer includes a composition which includes aluminum (Al), nitrogen (N), and oxygen (O). A minimum or average value of an oxygen concentration (atoms/cm3) of each of the first layer and the third layer is greater than an oxygen concentration (atoms/cm3) of the second layer.
Abstract:
A chemical vapor deposition apparatus includes: a reaction chamber including an inner tube having a predetermined volume of an inner space, and an outer tube tightly sealing the inner tube; a wafer holder disposed within the inner tube and on which a plurality of wafers are stacked at predetermined intervals; and a gas supply unit including at least one gas line supplying an external reaction gas to the reaction chamber, and a plurality of spray nozzles communicating with the gas line to spray the reaction gas to the wafers, whereby semiconductor epitaxial thin films are grown on the surfaces of the wafers, wherein the semiconductor epitaxial thin film grown on the surface of the wafer includes a light emitting structure in which a first-conductivity-type semiconductor layer, an active layer, and a second-conductivity-type semiconductor layer are sequentially formed.
Abstract:
A semiconductor light emitting device includes: an n-type semiconductor layer and a p-type semiconductor layer; an active layer disposed between the n-type semiconductor layer and the p-type semiconductor layer; and an electron blocking layer disposed between the active layer and the p-type semiconductor layer and doped with a p-type dopant element. The electron blocking layer is formed of AlxGa1-xN, where 0
Abstract translation:半导体发光器件包括:n型半导体层和p型半导体层; 设置在n型半导体层和p型半导体层之间的有源层; 以及设置在有源层和p型半导体层之间并掺杂有p型掺杂元素的电子阻挡层。 电子阻挡层由Al x Ga 1-x N形成,其中0