|本期目录/Table of Contents|

[1]李孝斌,黎 华,吴锐敏,等.银锰共掺杂Zn-In-Se核壳量子点的发光性能[J].武汉工程大学学报,2023,45(03):284-288.[doi:10.19843/j.cnki.CN42-1779/TQ.202103033]
　LI Xiaobin,LI Hua,WU Ruimin,et al.Luminescence Properties of Ag and Mn Codoped Zn-In-SeCore-Shell Quantum Dots[J].Journal of Wuhan Institute of Technology,2023,45(03):284-288.[doi:10.19843/j.cnki.CN42-1779/TQ.202103033]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
45
期数:
2023年03期
页码:
284-288
栏目:
材料科学与工程
出版日期:
2023-06-30

文章信息/Info

Title:
Luminescence Properties of Ag and Mn Codoped Zn-In-Se
Core-Shell Quantum Dots
文章编号:
1674 - 2869（2023）03 - 0284 - 05
作者:
李孝斌; 黎 华; 吴锐敏; 刘 凯; 徐 慢; 戴武斌*
武汉工程大学材料科学与工程学院，湖北 武汉 430205
Author(s):
LI Xiaobin; LI Hua; WU Ruimin; LIU Kai; XU Man; DAI Wubin*
School of Materials Science and Engineering，Wuhan Institute of Technology， Wuhan 430205， China
关键词:
白光发光二极管; 银; 锰; 共掺杂; 核/壳量子点; 发光性能
Keywords:
white light emitting diodes; Ag;  Mn;  codoping;  core-shell quantum dots;  luminescence properties
分类号:
O482.31
DOI:
10.19843/j.cnki.CN42-1779/TQ.202103033
文献标志码:
A
摘要:
为了得到一种高性能的白光发光二极管用荧光材料，采用热注入法合成了一种银锰共掺杂的核/壳量子点。利用X射线衍射、透射电子显微镜、紫外-可见分光光度计、荧光光谱仪对样品的微观形貌、结构以及发光性能进行了测试与表征。测试结果表明：成功制备了目标量子点，所得样品呈类球形，平均粒径为（10.7±0.5） nm；该量子点能被紫外光有效激发，发射峰位于510 nm与615 nm处；与未包覆ZnSe壳层的量子点相比，核/壳量子点的发光强度与稳定性得到显著提升，并且量子产率达到了68%。核/壳结构量子点在254 nm紫外光连续辐照24 h后以及温度达到475 K时仍分别保持初始亮度的82%与50%。该量子点的优异发光性能与稳定性表明其在照明领域具有良好的应用前景。

Abstract:
To obtain a high-performance fluorescent material for white light emitting diodes，Ag and Mn codoped core-shell quantum dots were synthesized by a thermal injection method. X-ray diffraction，transmission electron microscopy，ultraviolet-visible spectroscopy and fluorescence spectroscopy were used to characterize the micromorphology，structure and luminescence performance of the samples. The results show that the target quantum dots are successfully prepared，and the obtained sample is spherical with an average particle size of （10.7±0.5） nm. The quantum dots can be effectively excited by ultraviolet light，and the emission peaks are located at 510 nm and 615 nm. Compared with the quantum dots without a shell，the luminous intensity and stability of the core-shell quantum dots are significantly improved，and the quantum yield reaches 68%. The core-shell quantum dots still maintain 82% and 50% of the initial brightness after 24 h of continuous irradiation with 254 nm ultraviolet light and at 475 K，respectively. The excellent luminescence performance and stability of the quantum dots indicate that they have good application prospects in the field of lighting.

参考文献/References:

［1］ DAI W B，LEI Y F，ZHOU J，et al. 2D photonic crystal layer assisted thiosilicate ceramic plate with red-emitting film for high quality w-LEDs ［J］. Journal of the American Ceramic Society，2017，100（11）：5174-5185.

［2］ 黎华，戴武斌，许硕，等.红色荧光粉Ca3La3(BO3)5：Eu3+的制备及光学性能［J］.武汉工程大学学报，2020，42（6）：633-636.
［3］ ZHANG W J，LOU Q，JI W Y，et al. Color-tunable highly bright photoluminescence of cadmium-free Cu-doped Zn-In-S nanocrystals and electroluminescence ［J］. Chemistry of Materials，2014，26（2）：1204-1212.
［4］ BRUCHEZ Jr M，MORONNE M，GIN P，et al. Semiconductor nanocrystals as fluorescent biological labels ［J］. Science，1998，281（5385）：2013-2016.
［5］ CHAN W C W，NIE S M. Quantum dot bioconjugates for ultrasensitive nonisotopic detection ［J］. Science，1998，281（5385）：2016-2018.
［6］ SHEN C C，TSENG W L. One-step synthesis of white-light-emitting quantum dots at low temperature ［J］. Inorganic Chemistry，2009，48（18）：8689-8694.
［7］ SAPRA S，MAYILO S，KLAR T A，et al. Bright white-light emission from semiconductor nanocrystals：by chance and by design ［J］. Advanced Materials，2007，19（4）：569-572.
［8］ DENG Z T，YAN H，LIU Y. Band gap engineering of quaternary-alloyed ZnCdSSe quantum dots via a facile phosphine-free colloidal method ［J］. Journal of the American Chemical Society，2009，131（49）：17744-17745.
［9］ ZHANG W J，PAN C Y，CAO F，et al. Synthesis and electroluminescence of novel white fluorescence quantum dots based on a Zn-Ga-S host ［J］. Chemical Communications，2019，55（94）：14206-14209.
［10］ ZHANG W J，PAN C Y，CAO F，et al. Highly bright and stable white-light-emitting cadmium-free Ag，Mn co-doped Zn-In-S/ZnS quantum dots and their electroluminescence ［J］. Journal of Materials Chemistry C，2018，6（38）：10233-10240.
［11］ VINH N D，TAN P M， DO P V，et al. Effect of dopant concentration and the role of ZnS shell on optical properties of Sm3+ doped CdS quantum dots ［J］. RSC Advances，2021，11（14）：7961-7971.
［12］ ZHANG W J，PAN C Y，CAO F，et al. White-light-emitting Cu，Mn co-doped Zn-In-S/ZnS quantum dots with high stability and their electroluminescence ［J］. Journal of Materials Chemistry C，2017，5（40）：10533-10542.
［13］ CAO S， ZHENG J J， ZHAO J L， et al. Robust and stable ratiometric temperature sensor based on Zn-In-S quantum dots with intrinsic dual-dopant ion emissions ［J］. Advanced Functional Materials，2016，26（40）：7224-7233.
［14］ CHEN Y Y， HUANG L J， LI S J， et al. Aqueous synthesis of glutathione-capped Cu+ and Ag+-doped ZnxCd1-xS quantum dots with full color emission ［J］. Journal of Materials Chemistry C，2013，1（4）：751-756.
［15］ PAREDES I J，BECK C，LEE S，et al. Synthesis of luminescent core/shell α-Zn3P2/ZnS quantum dots ［J］. Nanoscale，2020，12（40）：20952-20964.
［16］ PRAMANIK S，BHANDARI S，CHATTOPADHYAY A. Zinc quinolate complex decorated CuInS2/ZnS core/shell quantum dots for white light emission ［J］. Journal of Materials Chemistry C，2017，5（29）：7291-7296.
［17］ STECKEL J S， ZIMMER J P， COE-SULLIVAN S，et al. Blue luminescence from （CdS）ZnS core-shell nanocrystals ［J］. Angewandte Chemie（International Edition），2004，43（16）：2154-2158.
［18］ LI J M，LIU Y， HUA J， et al. Photoluminescence properties of transition metal-doped Zn-In-S/ZnS core/shell quantum dots in solid films ［J］. RSC Advances，2016，6（50）：44859-44864.

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备注/Memo

备注/Memo:
收稿日期：2021-03-29
基金项目：湖北省自然科学基金青年项目（18S020）；湖北省教育厅科学技术研究计划项目（18S069）；武汉工程大学博士启动基金（16QD28）；武汉工程大学第十二届研究生教育创新基金（CX2020140）
作者简介：李孝斌，硕士研究生。E-mail：[email protected]
*通讯作者：戴武斌，博士，特聘教授。E-mail：[email protected]
引文格式：李孝斌，黎华，吴锐敏，等. 银锰共掺杂Zn-In-Se核壳量子点的发光性能［J］. 武汉工程大学学报，2023，45（3）：284-288.
更新日期/Last Update: 2023-07-03