中文版 | English
Title

Enhancing the stability of environmental resistance of alloyed CdZnSeS@ZnS quantum dots by doping Ti ions into shell layer

Author
Corresponding AuthorLei, Wei; Sun, Xiao Wei
Publication Years
2022-12-10
DOI
Source Title
ISSN
0957-4484
EISSN
1361-6528
Volume33Issue:50
Abstract
Colloidal quantum dots (QDs) are promising luminescent materials for display and lighting, but their stability has long been an issue. Here, we designed a passivation strategy of doping Ti ions into the shell of alloyed CdZnSeS@ZnS QDs. The results showed that Ti ions were successfully doped into the ZnS shell and the stability of QDs was improved. In the aging test, the Ti ions doped QDs maintained 51.4% of the initial performance after 90 h of aging, while the pristine QDs decreased to less than 25% of the initial value. In addition, we discuss the reasons why Ti ions doping improves the stability of QDs. Ti ions are found to form Ti-S bonds in the ZnS shell, which has high binding energy and strong oxidation resistance. Most importantly, since there is no external physical insulating coating, the optimized QDs can also be directly used in electroluminescent devices, showing great potential in electroluminescence applications.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Corresponding
Funding Project
National Natural Science Foundation of China["61875082","61405089","62005115"] ; Key-Area Research and Development Program of Guangdong Province["2019B010925001","2019B010924001"] ; Shenzhen Peacock Team Project[KQTD2016030111203005] ; Shenzhen Key Laboratory for Advanced Quantum Dot Displays and Lighting[ZDSYS201707281632549] ; Natural Science Foundation of Jiangsu Province[BK20190774] ; Jiangsu Province College Graduate Research Innovation Program[KYCX20_0104] ; Fundamental Research Funds for the Central Universities[YJ201955]
WOS Research Area
Science & Technology - Other Topics ; Materials Science ; Physics
WOS Subject
Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS Accession No
WOS:000863492800001
Publisher
ESI Research Field
MATERIALS SCIENCE
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/405996
DepartmentDepartment of Electrical and Electronic Engineering
Affiliation
1.Southeast Univ, Sch Elect Sci & Engn, Nanjing 210096, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Univ, Key Lab Adv Quantum Dot Displays & Lighting, Guangdong Hong Kong Macao Joint Lab Photon Therma, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Minist Educ, Key Lab Energy Convers & Storage Technol, Shenzhen 518055, Peoples R China
5.Shenzhen Planck Innovat Technol Co Ltd, Shenzhen 518055, Peoples R China
6.Ataturk Univ, Fac Engn, Dept Elect & Elect Engn, TR-25240 Erzurum, Turkey
7.Ataturk Univ, Fac Engn, Dept Nanosci & Nanoengn, TR-25240 Erzurum, Turkey
8.Univ Putra Malaysia, Fac Engn, Dept Elect & Elect Engn, Serdang 43400, Malaysia
9.Manas Univ, Fac Engn, Dept Elect Engn, Bishkek 720044, Kyrgyzstan
First Author AffilicationSouthern University of Science and Technology;  Department of Electrical and Electronic Engineering;  
Corresponding Author AffilicationSouthern University of Science and Technology;  Department of Electrical and Electronic Engineering;  
Recommended Citation
GB/T 7714
Fang, Fan,Liu, Haochen,Wen, Zuoliang,et al. Enhancing the stability of environmental resistance of alloyed CdZnSeS@ZnS quantum dots by doping Ti ions into shell layer[J]. NANOTECHNOLOGY,2022,33(50).
APA
Fang, Fan.,Liu, Haochen.,Wen, Zuoliang.,Liu, Chenxi.,Xu, Bing.,...&Sun, Xiao Wei.(2022).Enhancing the stability of environmental resistance of alloyed CdZnSeS@ZnS quantum dots by doping Ti ions into shell layer.NANOTECHNOLOGY,33(50).
MLA
Fang, Fan,et al."Enhancing the stability of environmental resistance of alloyed CdZnSeS@ZnS quantum dots by doping Ti ions into shell layer".NANOTECHNOLOGY 33.50(2022).
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