Luminescent properties of Eu3+-doped BaGd2ZnO5 phosphors for white LED

摘要：

　　BaGd2ZnO5∶Eu3+ phosphors were synthesized at sintering temperatures of 800,900,1000,1100 and 1200 ℃ by high-energy ball milling method.The crystallinity,surface morphology and photoluminescence properties of phosphors were investigated by using X-ray diffraction (XRD),field-emission scanning electron microscopy (FE-SEM) and luminescence spectrophotometry,respectively.The XRD results indicate that the crystallinity of the powder was improved and the powder shows a orthorhombic structure as the sintering temperature increased.The emission spectra of BaGd2ZnO5 phosphors excited at 280 nm exhibit a series of shaped peaks assigned to the 5D0→7FJ (J=0,1,2,3) transitions,and luminescence intensity was increased with increasing sintering temperature.The FE-SEM images indicate that the size and shape of particles are regular.

关键词： BaGd2ZnO5∶Eu3+ Phosphors High-energy ball milling method White LED

作者: Hyeon Mi Noh Hyun Kyoung Yang Byung Kee Moon Byung Chun Choi Jung Hyun Jeong Kiwan Jang Ho Sueb Lee Soung Soo Yi

作者单位: Department of Physics, Pukyong National University, Busan 608-737, Korea Department of Physics, Changwon National University, Changwon 641-773, Korea Department of Electronic Material Engineering, Silla University, Busan 617-736, Korea

会议类型: 国际会议

会议名称: the 2012 International Conference on Materials Science and Nanotechnology (2012年材料科学与纳米技术国际会议(ICMSN 2012))

会议地点: 广州

会议语种:英文

页码: 22-26

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）