An electroluminescent device of the dispersion type exhibiting high brightness of electroluminescence and having excellent heat resistance and flexibility can be prepared by using, as the matrix material of the particulate electroluminescent material, a specific cyanoalkyl group-containing organopolysiloxane represented by the average unit formula R¹aR²bSiO(4-a-b)/2, in which R¹ is a cyanoalkyl group having 3 yo 5 carbon atoms, R² is a monovalent hydrocarbon group, a is 0.8 to 1.8 and b is 0 to 1.0 with the proviso that a+b is 1.1 to 1.98.
作为微粒电致
发光材料的基体材料,可以使用由平均单元式 R¹aR²bSiO(4-a-b)/2 表示的特定含
氰基烷基有机聚
硅氧烷来制备一种分散型电致发光装置,该装置具有高亮度的电致发光,并且具有优异的耐热性和柔韧性,其中 R¹ 是具有 3 至 5 个碳原子的
氰基烷基,R² 是一价烃基,a 是 0.8 至 1.8,b 为 0 至 1.0,但 a+b 为 1.1 至 1.98。