文献类型：期刊文献

中文题名：水热法制备的六方相NaYF4：Er^3＋,Dy^3＋荧光粉的吸收光谱(英文)

英文题名：Absorption Spectra of Hexagonal-Phased NaYF_4:Er^(3+),Dy^(3+) Phosphors by Hydrothermal Synthesis

作者：雷亮[1];任益超[1];杨云霞[1];陈国荣[1]

机构：[1]华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海200237

年份：2011

卷号：39

期号：2

起止页码：215

中文期刊名：硅酸盐学报

外文期刊名：Journal of The Chinese Ceramic Society

收录：CSTPCD;;EI(收录号：20111313874893);Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：荧光粉;太阳能电池;水热法;晶体结构;吸收光谱

外文关键词：phosphors; solar cells; hydrothermal synthesis; crystal structure; absorption spectra

摘要：用水热法制备了六方相NaYF4:Er3+,Dy3+荧光粉。通过在NaYF4:Er3+中共掺Dy3+,拓宽上转换荧光粉的吸收峰,以增加太阳能电池在红外光谱区的吸收范围。通过X射线衍射和分光光度计检测和分析了共掺Dy3+对荧光粉的晶体结构和晶格缺陷的影响以及拓宽荧光粉在红外光谱区的吸收范围。结果表明:共掺Dy3+后,晶胞产生了晶格缺陷。特别是,NaYF4:Er3+,Dy3+荧光粉在近红外光谱区呈现出了宽的吸收带(在1 115 nm和1 300 nm处,增加了2个新的吸收峰),这些宽的吸收带可适用于太阳能电池。
The hexagonal-phased NaYF4：Er^3＋,Dy^3＋ phosphors were synthesized by hydrothermal method.There is a significant broadening of the absorption spectrum of the NaYF4：Er3 with Dy^3＋ doping in near infrared range.The effects of Dy^3＋ on the crystal structural and lattice defects of phosphors were investigated by X-ray diffraction.The broaden absorption spectrum was measured by spectrophotometer.In particular,NaYF4：Er^3＋,Dy^3＋ phosphors show the characteristic absorption bands in the near infrared region between 1 000 and 1 500 nm,which have potential in solar cell applications.