长春理工大学学报（自然科学版）
長春理工大學學報（自然科學版）
장춘리공대학학보（자연과학판）
JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
4期
48-51
,共4页
PbF2:Er3+,Yb3+%上转换发光%水热法
PbF2:Er3+,Yb3+%上轉換髮光%水熱法
PbF2:Er3+,Yb3+%상전환발광%수열법
PbF2:Er3+,Yb3+%up-conversion luminescence%hydrothermal method
本文以PbF2为基质，Er3+为激活剂，Yb3+为敏化剂，采用水热法，通过严格控制pH值，成功制备了PbF2：Er3+， Yb3+上转换发光材料。采用X射线衍射仪和荧光分光光度计分析了样品的结构和发光性能，结果表明，当pH值=4时，产物为立方晶系纯相PbF2，上转换发光性能最佳。在980nm光激发下，样品发射源于Er3+离子2H11/2→4I15/2、4S3/2→4I15/2能级跃迁的绿光（520~570nm）和4F9/2→4I15/2能级跃迁的红光（650~680nm）。
本文以PbF2為基質，Er3+為激活劑，Yb3+為敏化劑，採用水熱法，通過嚴格控製pH值，成功製備瞭PbF2：Er3+， Yb3+上轉換髮光材料。採用X射線衍射儀和熒光分光光度計分析瞭樣品的結構和髮光性能，結果錶明，噹pH值=4時，產物為立方晶繫純相PbF2，上轉換髮光性能最佳。在980nm光激髮下，樣品髮射源于Er3+離子2H11/2→4I15/2、4S3/2→4I15/2能級躍遷的綠光（520~570nm）和4F9/2→4I15/2能級躍遷的紅光（650~680nm）。
본문이PbF2위기질，Er3+위격활제，Yb3+위민화제，채용수열법，통과엄격공제pH치，성공제비료PbF2：Er3+， Yb3+상전환발광재료。채용X사선연사의화형광분광광도계분석료양품적결구화발광성능，결과표명，당pH치=4시，산물위립방정계순상PbF2，상전환발광성능최가。재980nm광격발하，양품발사원우Er3+리자2H11/2→4I15/2、4S3/2→4I15/2능급약천적록광（520~570nm）화4F9/2→4I15/2능급약천적홍광（650~680nm）。
In this paper,Er3+,Yb3+ co-doped PbF2 (PbF2:Er3+,Yb3+) up-conversion luminescence materials were suc-cessfully prepared by hydrothermal method through the strict controlling of pH value with PbF2 as matrix,Er3+ as acti-vator,Yb3+ as sensitizer. The structure and the luminescent properties of the samples were analyzed and investigated by X-ray diffraction (XRD) and Fluorescence Spectrophotometer, the experimental results showed that when pH value is 3, the product is pure phase of cubic PbF2, synthesis result and the prepared up-conversion luminescence property are the best. Under optical of 980 nm excitation, the sample is emitted from the Er3+ of sample in green light (520~570nm) of 2H11/2-4I15/2,4S3/2-4I15/2 energy level transition and red light (650~680nm) of 4F9/2-4I15/2 energy level transition.
