Preparation of Spray Pyrolyzed Bismuth Oxide and Its Application in Inhibition of Ultraviolet from Light-Emitting Diode (LED)

摘要：

　　In the present study,bismuth oxide (Bi2O3) powders were prepared from bismuth nitrate at various temperatures by spray pyrolysis (SP).The Bi2O3 powder can convert from a monoclinic α phase to a tetragonal β phase at a pyrolysis temperature of > 600℃.The crystallinity of the SP powder increased with the increase of pyrolysis temperature.The resulting SP powders were then mixed with organics and screen-printed onto the surface of LED for the evaluation of ultraviolet (UV) inhibition.The β-type bismuth oxide powder pyrolyzed at 700℃ exhibited a fine crystal structure.This caused the efficiency of UV inhibition to be 97.71% when the powder concentration was as low as 9.04 wt%.

关键词： Bismuth oxide Spray pyrolysis Light-emitting diode Ultraviolet

作者: Chin-Yi Chen Jui-Chung Weng Jing-Heng Chen Shih-Hsin Ma Tzyy-Leng Horng Jerry J.Wu Chien-Yie Tsay

作者单位: Department of Materials Science and Engineering,Feng Chia University,Taiwan Department of Photonics,Feng Chia University,Taiwan Department of Applied Mathematics,Feng Chia University,Taiwan Department of Environmental Engineering and Science,Feng Chia University

会议类型: 国际会议

会议名称: The 6th Cross-Strait Conference on Advanced Engineering Materials (第六届海峡两岸工程材料研讨会)

会议地点: 南京

会议语种:英文

页码: 147-149

在线出版日期: 2011-11-08（万方平台首次上网日期，不代表论文的发表时间）