Phosphor mixture, optoelectronic component comprising a phosphor mixture, and street lamp comprising a phosphor mixture

摘要

A phosphor mixture includes a first phosphor and a second phosphor, wherein an emission spectrum of the first phosphor has a relative intensity maximum in a yellow spectral range and an emission spectrum of the second phosphor has a relative intensity maximum in a red spectral range, the first phosphor corresponds to the following chemical formula: (LuxY1−x)3(Al1−yGay)5O12:Ce3+, where x is greater than or equal to 0 and less than or equal to 1 and where y is greater than or equal to 0 and less than or equal to 0.4, and the phosphor mixture is formed from a plurality of particles, which includes a plurality of particles of the first phosphor and a plurality of particles of the second phosphor.

主权项

1. A phosphor mixture comprising a first phosphor and a second phosphor, wherein
an emission spectrum of the first phosphor has a relative intensity maximum in a yellow spectral range and an emission spectrum of the second phosphor has a relative intensity maximum in a red spectral range and emits red light having a dominant wavelength of 590 nm to 615 nm, the first phosphor corresponds to the following chemical formula: (LuxY1−x)3(Al1−yGay)5O12:Ce3+, where x is greater than or equal to 0 and less than or equal to 1 and where y is greater than or equal to 0 and less than or equal to 0.4, the second phosphor is selected from the group consisting of (Ca,Sr,Ba)2Si5N8Eu2+ and (CaxSryBa1−x−y)2Si5N8:Eu2+, where x is greater than or equal to 0 and less than or equal to 0.2 and y is greater than 0 and less than or equal to 0.5, (CaxSr1−x)AlSi(OyN1−2/3y)3:Eu2+, where x is greater than 0.1 and less than or equal to 1 and y is greater than or equal to 0 and less than 0.1, and the phosphor mixture is formed from a plurality of particles, which comprises a plurality of particles of the first phosphor and a plurality of particles of the second phosphor.