公开(公告)号：US20220209076A1

公开(公告)日：2022-06-30

申请号：US17645790

申请日：2021-12-23

Applicant: NICHIA CORPORATION

Inventor： Yu HIGUCHI ,  Masafumi KURAMOTO

IPC: H01L33/50

Abstract: A wavelength conversion member containing a fluorescent material having, for example, a perovskite-type structure maintained with high light emission intensity; a light emitting device; and a method for producing a wavelength conversion member. The wavelength conversion member includes a translucent member containing a resin, a wavelength conversion layer containing a fluorescent material having, for example, a perovskite-type structure, and a composition of ABX3, and a first intermediate layer between the translucent member and the wavelength conversion layer. The method for producing a wavelength conversion member includes forming a first intermediate layer on a surface of a first translucent member containing a resin, and forming a first wavelength conversion layer containing a first fluorescent material having, for example, a perovskite-type structure on a surface of the first intermediate layer.