Organic electroluminescent element having a microstructure between a transparent substrate and an electrode

摘要

Problem To be Solved: To provide an organic EL element as well as a method for manufacturing the same, wherein a structure having a microscopic unevenness and a specific refractive index is incorporated in the organic EL element, and which has such a high luminous efficiency that it can be used as an illumination light source in which the transmittance of light at the interface between an electrode and a transparent substrate within the organic EL element is improved. Means for Solving the Problem: An organic EL element with high luminous efficiency is manufactured by fabricating a compound substrate by forming a microscopic unevenness on a transparent substrate of glass or the like using a sol-gel material and a nanoimprinting method, applying a high refractive index material on the microscopic unevenness, and planarizing the surface, and layering a first electrode, an organic solid layer including an organic light-emitting material and a first electrode in that order on the compound substrate.