Patent ID: 9028719
Filing Date: 2015-05-12
Classification: C09K,G02F,H01L,H05B,Y02B

Abstract:
1. A β-sialon expressed by the general formula, Si 6-z Al z O z N 8-z :Eu (0<z<4.2), with P2/P1 being not lower than 0.5 and not higher than 1000 (P1 representing a height of an absorption line appearing in a region where g is 2.00±0.02 in a first derivative spectrum obtained by an electron spin resonance technique at 25° C., P2 representing a difference between a maximum value and a minimum value in a spectrum on a lower magnetic field side of P1), wherein the Eu content of the β-sialon is not smaller than 0.1% by mass and not larger than 3% by mass.