蓝色SrS:Ce薄膜电致发光矩阵屏

MATRIX PANEL OF SrS:Ce BLUE THIN FILM ELECTROLUMINESCENCE

采用ＳｒＳ：Ｃｅ作为发光层制备了可用于彩色薄膜电致发光显示的较大面积的蓝色薄膜电致发光显示屏。非矩阵屏在１ＫＨｚ驱动时最高亮度是９００ｃｄ／ｍ２；矩阵屏亮度为３０ｃｄ／ｍ２；矩阵面积为４０ｍｍ×７５ｍｍ，象元数为８０×１５０线，象元面积为０３ｍｍ×０３ｍｍ。ＳｒＳ：Ｃｅ蓝色发光粉是采用Ｈ２法还原ＳｒＳＯ４得到的。对不同的合成方法及结构，Ｃｅ３＋浓度对ＰＬ性能的影响等进行了较系统的分析。

larger area blue thin film electroluminescent display panel was made, the emitting layer was SrS:Ce that was prepared in H2 atmosphere The highest brightness of nomatrix panel was 900cd/m2 under 1000Hz The brightness of matrix panel was 30cd/m2 and the area was 40mm× 75mm The number of image unit was 80× 150 lines and the area was 03mm× 03mm The SrS:Ce phosphors were prepared by reducing SrSO4 in H2 or CS2 atmosphere Different synthesis methods and the structure of SrS:Ce were investigated Also the influence of the Ce3+ concentration on PL characteristics was analyzed, and the EL performance characteristics was studied in detail