EPITAXIAL SUBSTRATE, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND METHOD FOR PRODUCING EPITAXIAL SUBSTRATE

摘要

Disclosed is a light-emitting element (200) which comprises a transparent supporting substrate (1), an adhesive layer (2) that is arranged on one main surface of the transparent supporting substrate (1), a transparent conductive layer (3) that is arranged on a main surface of the adhesive layer (2), said main surface being on the reverse side of another main surface that faces the transparent supporting substrate (1), and an epitaxial layer (4) that is arranged on a main surface of the transparent conductive layer (3), said main surface being on the reverse side of another main surface that faces the adhesive layer (2). A part of the second main surface of the transparent conductive layer (3) is exposed, said second main surface being on the reverse side of the first main surface that faces the adhesive layer (2). The light-emitting element (200) is additionally provided with electrodes (9, 10) which are respectively formed on the exposed second main surface and a main surface of the epitaxial layer (4), said main surface being on the reverse side of another main surface that faces the transparent conductive layer (3). Consequently, the light-emitting element is capable of achieving a large uniform emission output. Also disclosed are an epitaxial substrate which is capable of providing such a light-emitting element, and a method for producing the epitaxial substrate.