Abstract: A semiconductor chip of a light emitting diode includes a substrate, and an N-type gallium nitride layer, a quantum well layer, and a P-type gallium nitride layer stacked on the substrate successively, an N-type electrode electrically connected to the N-type gallium nitride layer, and a P-type electrode electrically connected to the P-type gallium nitride layer. The quantum well layer includes at least one quantum barrier and at least one quantum well stacked successively in sequence, wherein the growth pressure of the quantum barrier and the growth pressure of the quantum well are different, such that the interface crystal quality between the quantum well and the quantum barrier of the quantum well layer can be greatly improved to enhance the luminous efficiency of the semiconductor chip.

Abstract: A semiconductor chip of a light emitting diode includes a substrate, and an N-type gallium nitride layer, a quantum well layer, and a P-type gallium nitride layer stacked on the substrate successively, an N-type electrode electrically connected to the N-type gallium nitride layer, and a P-type electrode electrically connected to the P-type gallium nitride layer. The quantum well layer includes at least one quantum barrier and at least one quantum well stacked successively in sequence, wherein the growth pressure of the quantum barrier and the growth pressure of the quantum well are different, such that the interface crystal quality between the quantum well and the quantum barrier of the quantum well layer can be greatly improved to enhance the luminous efficiency of the semiconductor chip.

Abstract: The invention relates to compositions and methods for the concentration and/or purification of analytes, such as biomarkers, typically from complex biological samples such as whole blood, serum or plasma. This invention also relates to the use of binding agents, such as antibodies, aptamers, antigens and engineered protein scaffold based binding agents (e.g. commercially available Affibodies®), to facilitate the concentration and/or purification of said analytes. This invention further relates to assays used to detect, measure and/or quantify the analyte after its concentration and/or purification, preferably solid-phase immunoassays and more preferably multiplex solid-phase immunoassays.