Abstract: Disclosed is a method for yield enhancement of making a semiconductor device. The method for yield enhancement of making a semiconductor device comprises the steps of: providing the semiconductor device comprising an epitaxial layer including a defect; forming a dielectric layer on the epitaxial layer; detecting and identifying a location of the defect; and etching the dielectric layer and leaving a part of the dielectric layer to cover an area substantially corresponding to the detected defect. The semiconductor device made by the method is also disclosed.

Abstract: An electromagnetic wave gathering device includes a pillared electromagnetic waveguide body and a reflective structure. The reflective structure is located at about an axis of the pillared electromagnetic waveguide body. The reflective structure comprises a plurality of bicone reflective units. Each of the reflective units has a first reflective surface. The electromagnetic wave gathering device may have a smaller volume and is handy for use.

Abstract: A method for manufacturing an optoelectronic device includes steps of: providing an optoelectronic structure; forming a first contact layer having a pattern on the upper surface of the optoelectronic structure; forming a dielectric layer on the first contact layer and the optoelectronic structure; removing the dielectric layer on the first contact layer; and forming an electrode structure on the first contact layer.

Abstract: A method for manufacturing optoelectronic devices comprising the steps of: providing a common growth substrate; forming a light-emitting epitaxy structure on the common growth substrate; forming a stripping layer on the light-emitting epitaxy structure; forming a solar cell epitaxy structure on the stripping layer; forming an adhesive layer on the solar cell epitaxy structure; proving a solar cell permanent substrate on the adhesive layer; and removing the stripping layer to form a light-emitting device and a solar cell device separately.

Abstract: This disclosure discloses a light-emitting device. The light-emitting device comprises a substrate; a first photovoltaic cell disposed over the substrate comprising a base layer having a first conductivity type; an emitter layer having a second conductivity type; a window layer having the second conductivity type; an intermediate structure between the emitter layer and the window layer having the second conductivity type, and comprising a first portion adjacent to the emitter layer and a second portion on the first portion. The first portion comprises a bandgap energy higher than that of the emitter layer and the intermediate structure is substantially lattice matched with the emitter layer.

Abstract: A semiconductor light-emitting device is disclosed. The semiconductor light-emitting device comprises a multilayer epitaxial structure disposed on a semiconductor substrate. The semiconductor substrate has a predetermined lattice direction perpendicular to an upper surface thereof, wherein the predetermined lattice direction is angled toward [0 11] or [01 1] from [100], or toward [011] or [0 11] from [ 100] so that the upper surface of the semiconductor substrate comprises at least two lattice planes with different lattice plane directions. The multilayer epitaxial structure has a roughened upper surface perpendicular to the predetermined lattice direction. The invention also discloses a method for fabricating a semiconductor light-emitting device.

Abstract: An electromagnetic wave gathering device includes a pillared electromagnetic waveguide body and a reflective structure. The reflective structure is located at about an axis of the pillared electromagnetic waveguide body. The reflective structure comprises a plurality of bicone reflective units. Each of the reflective units has a first reflective surface. The electromagnetic wave gathering device may have a smaller volume and is handy for use.

Abstract: The application illustrates a solar cell module, included a base device, a solar cell on the base device, and a concentrator on the solar cell. The concentrator directly contacts with the solar cell and concentrates the light to the solar cell for opto-electric transformation.

Abstract: A solar photovoltaic device is provided and includes a solar cell body, a window layer on the solar cell body, and a current collection layer on the window layer. The current collection layer includes a patterned structure, and a portion of the window layer is exposed by the patterned structure.