Academic Journal
Role of Aspect Ratio in the Photoluminescence of Single CdSe/CdS Dot-in-Rods
| العنوان: | Role of Aspect Ratio in the Photoluminescence of Single CdSe/CdS Dot-in-Rods |
|---|---|
| المؤلفون: | Xiuqing Bai (11251366), Huiyu Li (2323936), Yonggang Peng (8505588), Guofeng Zhang (373438), Changgang Yang (6032960), Wenli Guo (4436362), Xue Han (25073), Jialu Li (506281), Ruiyun Chen (4492918), Chengbing Qin (4492912), Jianyong Hu (94678), Gaoling Yang (1521148), Haizheng Zhong (1395337), Liantuan Xiao (1302282), Suotang Jia (1302279) |
| سنة النشر: | 2022 |
| المجموعة: | Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: | Biophysics, Medicine, Microbiology, Cell Biology, Neuroscience, Physiology, Pharmacology, Biotechnology, Evolutionary Biology, Sociology, Marine Biology, Hematology, Chemical Sciences not elsewhere classified, Physical Sciences not elsewhere classified, − 17 mev, lifetime significantly reduce, pl quantum yield, polarization becomes limited, hole valence sub, different aspect ratios, dielectric effect induced, aspect ratio increases, dot pl spectroscopy, elongated cds nanorods, aspect ratios, aspect ratio, cds nanorods, cds dot, significantly changed, elongated shape |
| الوصف: | The elongated shape of CdS nanorods enables linearly polarized photoluminescence (PL) emission from the core/shell CdSe/CdS dot-in-rod (DR) nanocrystals. This work unravels the role of aspect ratios of CdS nanorods in the PL emission of single CdSe/CdS DRs using single-dot PL spectroscopy. We find that as the aspect ratio increases, the PL quantum yield and lifetime significantly reduce, but the PL blinking is suppressed, and the effect on the PL spectrum is less. The correlation between the degree of polarization and the aspect ratio is modeled by calculating the band-edge exciton fine structure. We find that when the aspect ratio reaches 7, the contribution of the dielectric effect induced by the elongated CdS nanorods to the degree of polarization becomes limited. The aspect ratio has a negligible influence on the electron–hole exchange interaction η. The net-splitting Δ between the heavy-hole and light-hole valence sub-bands, on the other hand, can be significantly changed from 13 to −17 meV through the strain effect between the core and the shell in DRs of different aspect ratios, thereby increasing the degree of polarization. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Role_of_Aspect_Ratio_in_the_Photoluminescence_of_Single_CdSe_CdS_Dot-in-Rods/19083195 |
| DOI: | 10.1021/acs.jpcc.1c10377.s001 |
| الاتاحة: | https://doi.org/10.1021/acs.jpcc.1c10377.s001 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.BB27064B |
| قاعدة البيانات: | BASE |
| ResultId |
1 |
|---|---|
| Header |
edsbas BASE edsbas.BB27064B 938 3 Academic Journal academicJournal 937.599182128906 |
| PLink |
https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsbas&AN=edsbas.BB27064B&custid=s6537998&authtype=sso |
| FullText |
Array
(
[Availability] => 0
)
Array ( [0] => Array ( [Url] => https://doi.org/10.1021/acs.jpcc.1c10377.s001# [Name] => EDS - BASE [Category] => fullText [Text] => View record in BASE [MouseOverText] => View record in BASE ) ) |
| Items |
Array
(
[Name] => Title
[Label] => Title
[Group] => Ti
[Data] => Role of Aspect Ratio in the Photoluminescence of Single CdSe/CdS Dot-in-Rods
)
Array ( [Name] => Author [Label] => Authors [Group] => Au [Data] => <searchLink fieldCode="AR" term="%22Xiuqing+Bai+%2811251366%29%22">Xiuqing Bai (11251366)</searchLink><br /><searchLink fieldCode="AR" term="%22Huiyu+Li+%282323936%29%22">Huiyu Li (2323936)</searchLink><br /><searchLink fieldCode="AR" term="%22Yonggang+Peng+%288505588%29%22">Yonggang Peng (8505588)</searchLink><br /><searchLink fieldCode="AR" term="%22Guofeng+Zhang+%28373438%29%22">Guofeng Zhang (373438)</searchLink><br /><searchLink fieldCode="AR" term="%22Changgang+Yang+%286032960%29%22">Changgang Yang (6032960)</searchLink><br /><searchLink fieldCode="AR" term="%22Wenli+Guo+%284436362%29%22">Wenli Guo (4436362)</searchLink><br /><searchLink fieldCode="AR" term="%22Xue+Han+%2825073%29%22">Xue Han (25073)</searchLink><br /><searchLink fieldCode="AR" term="%22Jialu+Li+%28506281%29%22">Jialu Li (506281)</searchLink><br /><searchLink fieldCode="AR" term="%22Ruiyun+Chen+%284492918%29%22">Ruiyun Chen (4492918)</searchLink><br /><searchLink fieldCode="AR" term="%22Chengbing+Qin+%284492912%29%22">Chengbing Qin (4492912)</searchLink><br /><searchLink fieldCode="AR" term="%22Jianyong+Hu+%2894678%29%22">Jianyong Hu (94678)</searchLink><br /><searchLink fieldCode="AR" term="%22Gaoling+Yang+%281521148%29%22">Gaoling Yang (1521148)</searchLink><br /><searchLink fieldCode="AR" term="%22Haizheng+Zhong+%281395337%29%22">Haizheng Zhong (1395337)</searchLink><br /><searchLink fieldCode="AR" term="%22Liantuan+Xiao+%281302282%29%22">Liantuan Xiao (1302282)</searchLink><br /><searchLink fieldCode="AR" term="%22Suotang+Jia+%281302279%29%22">Suotang Jia (1302279)</searchLink> ) Array ( [Name] => DatePubCY [Label] => Publication Year [Group] => Date [Data] => 2022 ) Array ( [Name] => Subset [Label] => Collection [Group] => HoldingsInfo [Data] => Smithsonian Institution: Digital Repository ) Array ( [Name] => Subject [Label] => Subject Terms [Group] => Su [Data] => <searchLink fieldCode="DE" term="%22Biophysics%22">Biophysics</searchLink><br /><searchLink fieldCode="DE" term="%22Medicine%22">Medicine</searchLink><br /><searchLink fieldCode="DE" term="%22Microbiology%22">Microbiology</searchLink><br /><searchLink fieldCode="DE" term="%22Cell+Biology%22">Cell Biology</searchLink><br /><searchLink fieldCode="DE" term="%22Neuroscience%22">Neuroscience</searchLink><br /><searchLink fieldCode="DE" term="%22Physiology%22">Physiology</searchLink><br /><searchLink fieldCode="DE" term="%22Pharmacology%22">Pharmacology</searchLink><br /><searchLink fieldCode="DE" term="%22Biotechnology%22">Biotechnology</searchLink><br /><searchLink fieldCode="DE" term="%22Evolutionary+Biology%22">Evolutionary Biology</searchLink><br /><searchLink fieldCode="DE" term="%22Sociology%22">Sociology</searchLink><br /><searchLink fieldCode="DE" term="%22Marine+Biology%22">Marine Biology</searchLink><br /><searchLink fieldCode="DE" term="%22Hematology%22">Hematology</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+Sciences+not+elsewhere+classified%22">Chemical Sciences not elsewhere classified</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+Sciences+not+elsewhere+classified%22">Physical Sciences not elsewhere classified</searchLink><br /><searchLink fieldCode="DE" term="%22−+17+mev%22">− 17 mev</searchLink><br /><searchLink fieldCode="DE" term="%22lifetime+significantly+reduce%22">lifetime significantly reduce</searchLink><br /><searchLink fieldCode="DE" term="%22pl+quantum+yield%22">pl quantum yield</searchLink><br /><searchLink fieldCode="DE" term="%22polarization+becomes+limited%22">polarization becomes limited</searchLink><br /><searchLink fieldCode="DE" term="%22hole+valence+sub%22">hole valence sub</searchLink><br /><searchLink fieldCode="DE" term="%22different+aspect+ratios%22">different aspect ratios</searchLink><br /><searchLink fieldCode="DE" term="%22dielectric+effect+induced%22">dielectric effect induced</searchLink><br /><searchLink fieldCode="DE" term="%22aspect+ratio+increases%22">aspect ratio increases</searchLink><br /><searchLink fieldCode="DE" term="%22dot+pl+spectroscopy%22">dot pl spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22elongated+cds+nanorods%22">elongated cds nanorods</searchLink><br /><searchLink fieldCode="DE" term="%22aspect+ratios%22">aspect ratios</searchLink><br /><searchLink fieldCode="DE" term="%22aspect+ratio%22">aspect ratio</searchLink><br /><searchLink fieldCode="DE" term="%22cds+nanorods%22">cds nanorods</searchLink><br /><searchLink fieldCode="DE" term="%22cds+dot%22">cds dot</searchLink><br /><searchLink fieldCode="DE" term="%22significantly+changed%22">significantly changed</searchLink><br /><searchLink fieldCode="DE" term="%22elongated+shape%22">elongated shape</searchLink> ) Array ( [Name] => Abstract [Label] => Description [Group] => Ab [Data] => The elongated shape of CdS nanorods enables linearly polarized photoluminescence (PL) emission from the core/shell CdSe/CdS dot-in-rod (DR) nanocrystals. This work unravels the role of aspect ratios of CdS nanorods in the PL emission of single CdSe/CdS DRs using single-dot PL spectroscopy. We find that as the aspect ratio increases, the PL quantum yield and lifetime significantly reduce, but the PL blinking is suppressed, and the effect on the PL spectrum is less. The correlation between the degree of polarization and the aspect ratio is modeled by calculating the band-edge exciton fine structure. We find that when the aspect ratio reaches 7, the contribution of the dielectric effect induced by the elongated CdS nanorods to the degree of polarization becomes limited. The aspect ratio has a negligible influence on the electron–hole exchange interaction η. The net-splitting Δ between the heavy-hole and light-hole valence sub-bands, on the other hand, can be significantly changed from 13 to −17 meV through the strain effect between the core and the shell in DRs of different aspect ratios, thereby increasing the degree of polarization. ) Array ( [Name] => TypeDocument [Label] => Document Type [Group] => TypDoc [Data] => article in journal/newspaper ) Array ( [Name] => Language [Label] => Language [Group] => Lang [Data] => unknown ) Array ( [Name] => NoteTitleSource [Label] => Relation [Group] => SrcInfo [Data] => https://figshare.com/articles/journal_contribution/Role_of_Aspect_Ratio_in_the_Photoluminescence_of_Single_CdSe_CdS_Dot-in-Rods/19083195 ) Array ( [Name] => DOI [Label] => DOI [Group] => ID [Data] => 10.1021/acs.jpcc.1c10377.s001 ) Array ( [Name] => URL [Label] => Availability [Group] => URL [Data] => https://doi.org/10.1021/acs.jpcc.1c10377.s001 ) Array ( [Name] => Copyright [Label] => Rights [Group] => Cpyrght [Data] => CC BY-NC 4.0 ) Array ( [Name] => AN [Label] => Accession Number [Group] => ID [Data] => edsbas.BB27064B ) |
| RecordInfo |
Array
(
[BibEntity] => Array
(
[Identifiers] => Array
(
[0] => Array
(
[Type] => doi
[Value] => 10.1021/acs.jpcc.1c10377.s001
)
)
[Languages] => Array
(
[0] => Array
(
[Text] => unknown
)
)
[Subjects] => Array
(
[0] => Array
(
[SubjectFull] => Biophysics
[Type] => general
)
[1] => Array
(
[SubjectFull] => Medicine
[Type] => general
)
[2] => Array
(
[SubjectFull] => Microbiology
[Type] => general
)
[3] => Array
(
[SubjectFull] => Cell Biology
[Type] => general
)
[4] => Array
(
[SubjectFull] => Neuroscience
[Type] => general
)
[5] => Array
(
[SubjectFull] => Physiology
[Type] => general
)
[6] => Array
(
[SubjectFull] => Pharmacology
[Type] => general
)
[7] => Array
(
[SubjectFull] => Biotechnology
[Type] => general
)
[8] => Array
(
[SubjectFull] => Evolutionary Biology
[Type] => general
)
[9] => Array
(
[SubjectFull] => Sociology
[Type] => general
)
[10] => Array
(
[SubjectFull] => Marine Biology
[Type] => general
)
[11] => Array
(
[SubjectFull] => Hematology
[Type] => general
)
[12] => Array
(
[SubjectFull] => Chemical Sciences not elsewhere classified
[Type] => general
)
[13] => Array
(
[SubjectFull] => Physical Sciences not elsewhere classified
[Type] => general
)
[14] => Array
(
[SubjectFull] => − 17 mev
[Type] => general
)
[15] => Array
(
[SubjectFull] => lifetime significantly reduce
[Type] => general
)
[16] => Array
(
[SubjectFull] => pl quantum yield
[Type] => general
)
[17] => Array
(
[SubjectFull] => polarization becomes limited
[Type] => general
)
[18] => Array
(
[SubjectFull] => hole valence sub
[Type] => general
)
[19] => Array
(
[SubjectFull] => different aspect ratios
[Type] => general
)
[20] => Array
(
[SubjectFull] => dielectric effect induced
[Type] => general
)
[21] => Array
(
[SubjectFull] => aspect ratio increases
[Type] => general
)
[22] => Array
(
[SubjectFull] => dot pl spectroscopy
[Type] => general
)
[23] => Array
(
[SubjectFull] => elongated cds nanorods
[Type] => general
)
[24] => Array
(
[SubjectFull] => aspect ratios
[Type] => general
)
[25] => Array
(
[SubjectFull] => aspect ratio
[Type] => general
)
[26] => Array
(
[SubjectFull] => cds nanorods
[Type] => general
)
[27] => Array
(
[SubjectFull] => cds dot
[Type] => general
)
[28] => Array
(
[SubjectFull] => significantly changed
[Type] => general
)
[29] => Array
(
[SubjectFull] => elongated shape
[Type] => general
)
)
[Titles] => Array
(
[0] => Array
(
[TitleFull] => Role of Aspect Ratio in the Photoluminescence of Single CdSe/CdS Dot-in-Rods
[Type] => main
)
)
)
[BibRelationships] => Array
(
[HasContributorRelationships] => Array
(
[0] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Xiuqing Bai (11251366)
)
)
)
[1] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Huiyu Li (2323936)
)
)
)
[2] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Yonggang Peng (8505588)
)
)
)
[3] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Guofeng Zhang (373438)
)
)
)
[4] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Changgang Yang (6032960)
)
)
)
[5] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Wenli Guo (4436362)
)
)
)
[6] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Xue Han (25073)
)
)
)
[7] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Jialu Li (506281)
)
)
)
[8] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Ruiyun Chen (4492918)
)
)
)
[9] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Chengbing Qin (4492912)
)
)
)
[10] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Jianyong Hu (94678)
)
)
)
[11] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Gaoling Yang (1521148)
)
)
)
[12] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Haizheng Zhong (1395337)
)
)
)
[13] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Liantuan Xiao (1302282)
)
)
)
[14] => Array
(
[PersonEntity] => Array
(
[Name] => Array
(
[NameFull] => Suotang Jia (1302279)
)
)
)
)
[IsPartOfRelationships] => Array
(
[0] => Array
(
[BibEntity] => Array
(
[Dates] => Array
(
[0] => Array
(
[D] => 01
[M] => 01
[Type] => published
[Y] => 2022
)
)
[Identifiers] => Array
(
[0] => Array
(
[Type] => issn-locals
[Value] => edsbas
)
[1] => Array
(
[Type] => issn-locals
[Value] => edsbas.oa
)
)
)
)
)
)
)
|
| IllustrationInfo |