CdSe:Nd纳米晶及CdSe:Nd@SiO2核壳结构的合成及发光性能

杨峻宏; 张高峰; 高俊芳; 雍胜利; 马学林; 段军

doi:10.3788/fgxb20183909.1260

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CdSe:Nd纳米晶及CdSe:Nd@SiO₂核壳结构的合成及发光性能

材料合成及性能 | 更新时间：2020-08-12

- CdSe:Nd纳米晶及CdSe:Nd@SiO₂核壳结构的合成及发光性能
- Synthesis and Fluorescence Properties of CdSe: Nd and CdSe: Nd@SiO₂ Core-Shell Structures
- 发光学报 2018年39卷第9期页码：1260-1267
- 作者机构：
  
  包头师范学院化学学院,内蒙古包头,014030
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20183909.1260
  中图分类号： O635;O482.31
- 纸质出版日期：2018-9-5，
  
  网络出版日期：2018-4-24，
  
  收稿日期：2018-1-22，
  
  修回日期：2018-5-29，
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杨峻宏, 张高峰, 高俊芳等. CdSe:Nd纳米晶及CdSe:Nd@SiO2核壳结构的合成及发光性能[J]. 发光学报, 2018,39(9): 1260-1267

YANG Jun-hong, ZHANG Gao-feng, GAO Jun-fang etc. Synthesis and Fluorescence Properties of CdSe: Nd and CdSe: Nd@SiO2 Core-Shell Structures[J]. Chinese Journal of Luminescence, 2018,39(9): 1260-1267
杨峻宏, 张高峰, 高俊芳等. CdSe:Nd纳米晶及CdSe:Nd@SiO2核壳结构的合成及发光性能[J]. 发光学报, 2018,39(9): 1260-1267 DOI： 10.3788/fgxb20183909.1260.

YANG Jun-hong, ZHANG Gao-feng, GAO Jun-fang etc. Synthesis and Fluorescence Properties of CdSe: Nd and CdSe: Nd@SiO2 Core-Shell Structures[J]. Chinese Journal of Luminescence, 2018,39(9): 1260-1267 DOI： 10.3788/fgxb20183909.1260.

摘要

利用有机相法合成Nd

掺杂CdSe纳米晶（CdSe∶Nd），通过X射线粉末衍射（XRD）、透射电镜（TEM）、紫外吸收光光谱及荧光光谱表征，证明Nd

已经成功掺入到CdSe的晶格中。与纯CdSe纳米晶相比，CdSe∶Nd纳米晶的结构仍为立方晶型，且形貌近似球形，均匀分散，粒径约为2~4 nm。紫外吸收峰和荧光发射峰都发生红移，而且掺杂后的CdSe∶Nd纳米晶量子产率也提高，这可能是由于掺杂Nd

引入了新的杂质能级，带隙减小。为了实现CdSe∶Nd纳米晶的可加工性和功能性，通过微乳法合成SiO

壳包覆的CdSe∶Nd纳米球（CdSe∶Nd@SiO

纳米球），CdSe∶Nd@SiO

纳米球呈均匀球形，直径约为100~115 nm，并且包壳后的CdSe∶Nd@SiO

纳米球发射峰（581 nm）与CdSe∶Nd纳米晶（598 nm）相比，发光强度提高且发射峰蓝移，蓝移约为17 nm，可能是因为SiO

壳可以减少纳米晶表面的非辐射跃迁以及改善表面缺陷导致的。

Abstract

CdSe:Nd nanocrystals (CdSe:Nd NCs) were synthesized

via

organic phase method. The objective of this research was to investigate structure

microstructure

optical properties and possible luminescence mechanism of CdSe:Nd and CdSe:Nd@SiO

. It is confirmed that Nd

is successfully incorporated into the crystal lattice of CdSe through XRD

TEM

UV-visible absorption spectroscopy and fluorescence emission. Compared with pure CdSe NCs

CdSe:Nd NCs still have a cubic crystal structure

the lattice constant of CdSe and CdSe:Nd NCs is 0.605 and 0.609 nm

respectively. The lattice of CdSe:Nd constant increases

it may be due to the ionic radius of Nd

is larger than Cd

. When Nd

is incorporated into the crystal lattice of CdSe:Nd NCs

which results in dilation of crystal lattice. CdSe:Nd NCs are monodisperse and spherical particles with an average diameter of 2-4 nm. Both absorption spectrum and emission spectrum red-shift

and the quantum yields of the CdSe:Nd NCs also increase

which may be due to the introduction of new impurity levels and the decrease of the band gap. To enhance the stability and functionality of CdSe:Nd NCs

CdSe:Nd NCs were coated with SiO

(CdSe:Nd@SiO

spheres) and the core-shell SiO

-coated CdSe:Nd NCs (CdSe:Nd@SiO

) were prepared

via

the micro-emulsion method. XRD patterns show that the patterns of CdSe:Nd@SiO

contain the characteristic peak of CdSe:Nd NCs

which proves that CdSe:Nd has entered in the SiO

shell successfully. CdSe:Nd NCs are uniform spherical with an average diameter of 100-115 nm

and CdSe:Nd NCs can be clearly seen in the SiO

shell. The fluorescence emission of CdSe:Nd@SiO

(581 nm) shows a blue-shift compared with CdSe:Nd NCs(598 nm)

possibly because of altered surface properties and reduction of nonradiative transitions.

关键词

CdSe:Nd纳米晶掺杂CdSe:Nd@SiO2纳米球荧光性质核壳

Keywords

CdSe:Nd nanocrystalsdopedCdSe:Nd@SiO2 nanospheresfluorescence propertiescore-shell

references

HUANG H Q, LIU J L, HAN B F, et al.. Cell labeling and cytotoxicity of aqueously synthesized CdTe/CdS/ZnS core-shell-shell quantum dots by a water bath-hydrothermal method[J]. J. Lumin., 2012, 132(4):1003-1009.

LIU P, WANG Q, LI X. Studies on CdSe/l-cysteine quantum dots synthesized in aqueous solution for biological labeling[J]. J. Phys. Chem. C, 2009, 113:7670-7676.

KUMAR R, NYK M, OHULCHANSKYY T Y, et al.. Combined optical and MR bioimaging using rare earth ion doped NaYF4 nanocrystals[J]. Adv. Funct. Mater., 2009, 19(111):853-859.

LIU N, ZHOU W Z, XU L, et al.. Enhanced luminescence of ZnSe:Eu3+/ZnS core-shell quantum dots[J]. J. Non-Cryst. Solids, 2012, 358(17):2353-2356.

KUNDU S, KAR A, PATRE A. Morphology dependent luminescence properties of rare-earth doped lanthanum fluoride hierarchical microstructures[J]. J. Lumin., 2012, 132(6):1400-1406.

SARAVANAN L, PANDURANGAN A, AYAVEL R. Synthesis and luminescence enhancement of cerium doped CdS nanocrystals[J]. Mater. Lett., 2012, 66(1):343-345.

ZEBARDASTAN N, KHANMIRZAEI M H, RAMESH S, et al.. Performance enhancement of poly(vinylidene fluoride-co-hexafluoro propylene)/polyethylene oxide based nanocomposite polymer electrolyte with ZnO nanofiller for dye-sensitized solar cell[J]. Org. Electron., 2017, 49:292-299.

AN Q Z, FASSL P, HOFSTETTER Y J, et al.. High performance planar perovskite solar cells by ZnO electron transport layer engineering[J]. Nano Energy. 2017, 39:400-408.

WANGA Y F, SONGB J M, NIUA G Z, et al.. Fabrication and post-chemical-etched surface texturing of H and Ti codoped ZnO film for silicon thin-film solar cells[J]. Ceram. Int., 2017, 43(12):9382-9389.

MARTN-RODRGUEZ R, GEITENBEEK R, MEIJERINK A. Incorporation and luminescence of Yb3+ in CdSe nanocrystals[J]. J. Am. Chem. Soc., 2013, 135(37):13668-13671.

HAMNABARD N, HANIFEHPOUR Y, JOO S W. Effectiveness of Nd doping and graphene oxide modification on electrochemical performance of CdSe nanorod material[J]. J. Ind. Eng. Chem., 2017, 49:88-98.

LI H, SUN Y Q, XU L, et al.. Tunable luminescence in full color region based on CdSe/EuxSey hybrid nanocrystals[J]. RSC Adv., 2013, 3:22849-22852.

XU X M, ZHOU L Y, ZHANG Q, et al.. Synthesis and luminescence properties of Eu2+ -doped CdSe nanocrystals[J]. RSC Adv., 2013, 3:24593-24596.

LI F I, YEH C S. Synthesis of Gd doped CdSe nanoparticles for potential optical and MR imaging applications[J]. J. Mater. Chem., 2010, 20(11):2079-2081.

SUNIL K, NIT U K, SUDHANSHU S, et al.. Doping studies of Tb(terbium) and Cu(copper) on CdSe nanorods[J]. Colloids and Surf. A:Physicochem. Eng. Aspects, 2011, 389:1-5.

KHATAEE A R, FATHINIA S, FATHINIA M, et al.. Synthesis, characterization and photocatalytic properties of nanostructured Sm-doped CdSe[J]. Current Nanosci., 2013, 9(6):780-786.

王益林, 杨昆, 潘华桥, 等. 高质量CdSe量子点的水相制备与表征[J]. 高等学校化学学报, 2012, 33(12):2604-2608. WANG Y L, YANG K, PAN H J, et al.. Preparation and characterization of high quality CdSe quantum dots in aqueous solution[J]. Chem. J. Chin. Univ., 2012, 33(12):2604-2608. (in Chinese)

黄科, 李玲, 黄国英, 等. 基于氢化物发生技术的CdSe量子点水相制备新方法研究及其用于银的高灵敏传感分析[J]. 发光学报, 2017, 38(5):575-579. HUANG K, LI L, HUANG G Y, et al.. Aqueous synthesis of CdSe qumantum dots by hydride generation and its applications in sensitive analysis of silver[J]. Chin. J. Lumin., 2017, 38(5):575-579. (in Chinese)

安娜, 卢睿, 马昊玥, 等. CdSe/CdS核壳量子点复合材料合成及其在白光发光二极管中的应用[J]. 发光学报, 2017, 38(8):1004-1009. AN N, LU R, MA H Y, et al.. Synthesis of CdSe/CdS core/shell quantum dots luminescent microspheres and their application for WLEDs[J]. Chin. J. Lumin., 2017, 38(8):1004-1009. (in Chinese)

WU Y H, QIAO P W, QIU J J, et al.. Magnetic nanostructures grown on vertically aligned carbon nanotube templates[J]. Nano Lett., 2002, 2(2):161-164.

LEE A F, BADDELEY C J, HARDACRE C, et al.. Structural and catalytic properties of novel Au/Pd bimetallic colloid particles:EXAFS, XRD, and Acetylene coupling[J]. J. Phys. Chem., 1995, 99(16):6096-6102.

GUO X, LI Y Y, SHEN D H, et al.. Immobilization of cobalt porphyrin on CeO2@SiO2 core-shell nanocrystals as a novel catalyst for selective oxidation of diphenylmethane[J]. J. Mol. Catal. A:Chem., 2013, 367:7-11.

SAADATKHAH N, RIGAMONTI M G, BOFFITO D C, et al.. Spray dried SiO2 WO3/TiO2 and SiO2 vanadium pyrophosphate core-shell catalysts[J]. Powder Technol., 2017, 316:434-440.

CORREA-DURATE M A, GIERSIG M, LIZ-MARZAN L M. Stabilization of CdS semiconductor nanocrystals against photodegradation by a silica coating procedure[J]. Chem. Phys. Lett., 1998, 286(5-6):497-501.

TAPEC R, ZHAO X, TAN W J. Development of organic dye-doped silica nanocrystals for bioanalysis and biosensors[J]. Nanosci. Nanotechnol., 2002, 2:405.

翟雪松, 刘世虎, 范柳燕, 等. 强上转换发光的LiLu1-xYbxF4:Tm@LiGdF4核壳纳米晶的制备[J]. 发光学报, 2017, 38(9):1150-1154. ZHAI X S, LIU S H, FAN L Y, et al.. Preparation of LiLu1-xYbxF4:Tm@LiGdF4 core-shell nanocrystals with enhanced upconversion luminescence[J]. Chin. J. Lumin., 2017, 38(9):1150-1154. (in Chinese)

STBER W, FINK A, BOHN E. Controlled growth of monodisperse silica spheres in the micron size range[J]. J. Colloid Interf. Sci., 1968, 26:62-69.

CORREA-DUARTE M A, GIERSIG M, LIZ-MARZN L M. Stabilization of CdS semiconductor nanocrystals against photodegradation by a silica coating procedure[J]. Chem. Phys. Lett., 1998, 286:497-501.

ROGACH A L, NAGESHA D, OSTRANDER J W, et al.. "Raisin bun"-type composite spheres of silica and semiconductor nanocrystals[J]. Chem. Mater., 2000, 12:2676-2685.

SELVAN S T, TAN T T, YING J Y. Silica-coated CdSe quantum dots with efficient photoluminescence[J]. Adv. Mater., 2005, 17:1620-1625.

YI D K, SELVAN S T, LEE S, et al.. Silica-coated nanocomposites of magnetic nanocrystals and quantum dots[J]. J. Am. Chem. Soc., 2005, 127:4990-4991.

TENG F, TIAN Z, XIONG G, et al.. Preparation of CdS-SiO2 core-shell particles and hollow SiO2spheres ranging from nanometers to microns in the nonionic reverse microemulsions[J]. Catal. Today, 2004, 93-95:651-657.

RAOLA O E, STROUSE G F. Synthesis and characterization of Eu-doped cadmium selenide nanocrystals[J]. Nano Lett., 2002, 2(12):1443-1447.

PARK J Y, JEONG D W, LIM K M. Multimodal luminescence properties of surface-treated ZnSe quantum dots by Eu[J]. Appl. Surf. Sci., 2017, 415:8-13.

戴艳, 侯永可, 龙志奇, 等. 掺杂纳米氧化铈紫外屏蔽材料的表征与性能[J]. 中国稀土学报, 2011, 29(2):196-200. DAI Y, HOU Y K, LONG Z Q, et al.. Characterization and UV-shielding properties of doped ceria nanocrystals[J]. J. Chin. Soc. Rare Earths, 2011, 29(2):196-200. (in Chinese)

MOU P, MATHEWS N R, MORALES ERIK R, et al.. Synthesis of Eu+3 doped ZnS nanocrystals by a wet chemical route and its characterization[J]. Opt. Mater., 2013, 35:2664-2669.

LANG J H, WANG J Y, ZHANG Q, et al.. Chemical precipitation synthesis and significant enhancement in photocatalytic activity of Ce-doped ZnO nanocrystals[J]. Ceram. Int., 2016, 42(12):14175-14181.

刘月, 余林, 魏志钢, 等. 稀土金属掺杂对锐钛矿型TiO2 光催化活性影响的理论和实验研究[J]. 高等学校化学学报, 2013, 34(2):434-440. LIU Y, YU L, WEI Z G, et al..Theoretical and experimental studies on photocatalytic potential of rare earth doped anatase TiO2[J]. Chem. J. Chin. Univ., 2013, 34(2):434-440. (in Chinese)

LANG J H, ZHANG Q, HAN Q, et al.. The study of structural and optical properties of (Eu, La, Sm) codoped ZnO nanoparticles via a chemical route resulting in the bandgap narrowing[J]. Mater. Chem. Phys., 2017, 194:29.

MA X Y, WANG Z. The optical properties of rare earth Gd doped ZnO nanocrystals[J]. Mater. Sci. Semicond. Proc., 2012, 15:227-231.

尤晓刚, 贺蓉, 高峰, 等. 核/壳型CdTe@SiO2 荧光纳米复合粒子的制备与表征[J]. 化学学报, 2007, 65(6):561-565. YOU X G, HE R, GAO F, et al.. Preparation and characterization of CdTe@SiO2 Core/Shell luminescent composite nanocrystals[J]. Acta Chim. Sinica, 2007, 65(6):561-565. (in Chinese)

宁振动, 张纪梅, 魏君, 等. 反相微乳液法制备CdTe@SiO2 荧光微球及其荧光性能研究[J]. 天津工业大学学报,2012, 31(1):49-52. NING Z D, ZHANG J M, WEI J, et al.. CdTe@SiO2 particles prepared via reverse microemulsion method and its fluorescence properties[J]. J. Tianjin Polytech. Univ., 2012, 31(1):49-52. (in Chinese)

SONG H Y, LEEM Y M, KIM B G, et al.. SiO2 -coated ZnS submicrospheres with enhanced thermal stability and photoluminescence[J]. Mater. Sci. Eng., 2007, B143:70-75.

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