The study of Y_2O_3-based Oxide Phosphor Thin Film Electroluminescent Devices

Y_2O_3基氧化物荧光粉薄膜电致发光器件的研究

• 批准号: 15560037
• 负责人: MINAMI Tadatsugu
• 金额: $ 2.3万
• 依托单位: Kanazawa Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560037/
• 关键词: Y_2O_3:Mn; Thin Film Electroluminescence; Oxide; Phosphor; (Y_2O_3-Ga_2O_3):Mn; (Y_2O_3-GeO_3):Mn; Sol-gel; Y2O3:Mn; Y_2O_3:Mn; Thin Film Electroluminescence; Oxide; Phosphor; (Y_2O_3-Ga_2O_3):Mn; (Y_2O_3-GeO_3):Mn; Sol-gel; Y2O3:Mn

This project introduces newly developed multicomponent oxide host materials for electroluminescent phosphors. These are composed of Y_2O_3 and another binary compound such as Al_2_O3, Ga_2O_3, Gd_2O_3, In_2O_3, B_2O_3 or GeO_2. The various Mn-activated (Y_2O_3)_<1-x>-(oxide)x phosphor thin films were deposited while varying the composition by r.f. magnetron sputtering, sol-gel and postannealed. The obtained electroluminescent and photoluminescent emissions from the ((Y_2O_3)_<1-x>-(oxide)x):Mn phosphor thin-film emitting layers were strongly dependent on the preparation and postannealing conditions as well as on the composition. The highest luminance and photoluminescent intensity were obtained by using a (Y_2O_3)_<1-x>-(oxide)x:Mn thin-film emitting layer prepared with an optimized composition. Both the obtained electroluminescent and photoluminescent characteristics were correlated to the crystallinity of the thin-film emitting layers. High luminances above 7000 cd/m^2 were obtained in ((Y_2O_3)_<0.6>-(GeO_2)_<0.4>):Mn and ((Y_2O_3)_<0.5>-(Ga_2O_3)_<0.5>):Mn thin-film electroluminescent devices fabricated under optimal condition and driven by an ac sinusoidal wave voltage at 1 kHz.

该项目引入了新开发的用于电致磷光器的多组分氧化物宿主材料。这些由Y_2O_3和另一种二进制化合物组成，例如Al_2_O3，GA_2O_3，GD_2O_3，IN_2O_3，B_2O_3或GEO__2。各种Mn激活（Y_2O_3）_ <1-x> - （氧化物）X磷光薄膜，同时由R.F.改变组成。磁控杆溅射，溶胶 - 凝胶和吹气后。从（（（y_2o_3）_ <1-x> - （氧化物）X）获得的电致发光和光致发光发射：Mn磷光薄膜发射层强烈依赖于媒介和后媒体的准备条件以及组成。使用（Y_2O_3）_ <1-x> - （氧化物）X：Mn薄膜发射层通过优化的组合物制备。获得的电致发光和光致发光特性都与薄膜发射层的结晶度相关。在（（y_2o_3）_ <0.6> - （GEO_2）_ <0.4>）中获得了高于7000 cd/m^2的高亮度。 KHz。