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题名: Luminescence properties of newly developed red-emitting phosphors M 2Si2O7Eu3+ (M=La, Y) under UV/VUV excitation
作者: Zhang, Zhiya; Wang, YH(王育华)
收录类别: EI
出版日期: 2006
会议名称: 2006 MRS Spring Meeting
会议日期: April 18, 2006 - April 19, 2006
会议地点: San Frnacisco, CA, United states
英文摘要: The red-emitting phosphors of Eu3+ doped M2Si 2Oy (M=La, Y) were synthesized by a solid-state reaction method and their luminescence properties in UV-VUV region have been studied. On the excitation spectra, the Eu3+-O2- CT band is of higher intensity for La2Si2O7, while for Y 2Si2O7, the absorption around 150nm is much stronger and this can be assigned to the Y3+-O2- CT band in company with the Si-O group absorption. The emission spectra show higher intensity and better color purity for La2Si2O 7:Eu3+ under 254nm excitation due to Eu3+ occupying the non-centrosymmetric site. Under 147nm excitation, Y 2Si2O7:Eu3+ exhibits stronger emission with purer red, which can be corresponded to the absorption of Y 3+-O2- CT in the VUV region. © 2006 Materials Research Society.
关键词: Phosphors ; Absorption ; Emission spectroscopy ; Lanthanum compounds ; Luminescence ; Ultraviolet radiation ; Yttrium compounds ; Excitation spectra ; Red-emitting phosphors ; Solid-state reactions
作者部门: (1) Department of Material Science, School of Physical Science and Technology, Lanzhou University, No.222 South Tianshui Road, Lanzhou, Gansu, 730000, China
通讯作者: Zhang, Z.
学科分类: Chemical Operations; Chemical Products Generally;Inorganic Compounds
会议录: Materials Research Society Symposium Proceedings
卷号: 916
页码: 35-40
出版者: Materials Research Soc
出版地: Warrendale
语种: 英语
ISSN号: 0272-9172
EI记录号: 20064210189419
IR记录号: 20064210189419
第一机构:
内容类型: 会议论文
URI标识: http://ir.lzu.edu.cn/handle/262010/184799
Appears in Collections:物理科学与技术学院_会议论文

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Recommended Citation:
Zhang, Zhiya,Wang, Yuhua. Luminescence properties of newly developed red-emitting phosphors M 2Si2O7Eu3+ (M=La, Y) under UV/VUV excitation[C]. 见:2006 MRS Spring Meeting. San Frnacisco, CA, United states. April 18, 2006 - April 19, 2006.
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