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[1]陈虎,刘云飞,夏云升,等.近红外高分散球形CdTe量子点合成及光学性质[J].南京工业大学学报(自然科学版),2015,37(02):6-10.[doi:10.3969/j.issn.1671-7627.2015.02.002]
 CHEN Hu,LIU Yunfei,XIA Yunsheng,et al.Synthesis and optical properties of near-infrared-emitting spherical CdTe quantum dots with high dispersity[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(02):6-10.[doi:10.3969/j.issn.1671-7627.2015.02.002]
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近红外高分散球形CdTe量子点合成及光学性质()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年02期
页码:
6-10
栏目:
出版日期:
2015-03-20

文章信息/Info

Title:
Synthesis and optical properties of near-infrared-emitting spherical CdTe quantum dots with high dispersity
文章编号:
1671-7627(2015)02-0006-05
作者:
陈虎刘云飞夏云升刘二永吕忆农
南京工业大学 材料科学与工程学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
CHEN HuLIU YunfeiXIA YunshengLIU EryongLÜ Yinong
State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
球形CdTe量子点 十六胺 高结晶度 近红外发光
Keywords:
spherical CdTe quantum dots hexadecylamine good crystallinity near-infrared-emitting
分类号:
TB321
DOI:
10.3969/j.issn.1671-7627.2015.02.002
文献标志码:
A
摘要:
以十六胺(HDA)为表面修饰剂,通过快速简单的溶剂热法制备近红外发光球形CdTe量子点。通过X线衍射仪(XRD)、傅里叶变换红外光谱仪(FT-IR)、透射电子显微镜(TEM)等表征方法对试样的形貌及结构进行研究。使用紫外-可见吸收光谱(UV-Vis)和荧光光谱(PL)研究CdTe量子点的光学性质。结果表明:制得的均匀球形CdTe量子点为立方闪锌矿结构相,具有高结晶度及高分散性,并且量子点的粒径分布较窄。随反应时间延长量子点尺寸变大,吸收峰与荧光发射峰红移,两者的斯托克位移较大,且均具有优良的近红外荧光性能。
Abstract:
Highly luminescent near-infrared-emitting CdTe quantum dots(QDs)were prepared in organic phase by a fast and convenient solvothermal method with hexadecylamine(HDA)as the surface agent.The morphology and the structure of QDs were investigated by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR)and transmission electron microscope(TEM).Using ultraviolet-visible absorption spectroscopy(UV-Vis)and photoluminescence spectroscopy(PL),the optical properties of QDs were studied.As-prepared spherical CdTe QDs with the narrow size distribution had a good crystallinity and high dispersity,and the QDs were cubic zinc blende structure.As the reaction time prolonging,the sizes of QDs became larger,and the absorption and luminescence peaks of QDs with excellent near-infrared fluorescence performance had red-shift for a large Stokes shift.

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备注/Memo

备注/Memo:
收稿日期:2014-02-21
基金项目:江苏高校优势学科建设工程
作者简介:陈虎(1986—),男,江苏常州人,博士,主要研究方向为纳米材料; 吕忆农(联系人),教授,E-mail:yinonglu@njtech.edu.cn.
引用本文:陈虎,刘云飞,夏云升,等.近红外高分散球形CdTe量子点合成及光学性质[J].南京工业大学学报:自然科学版,2015,37(2):6-10..
更新日期/Last Update: 2015-02-20