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Surface plasmon inhibited photo-luminescence activation in CdSe/ZnS core-shell quantum dots
Chen, Junsheng1,2; Zidek, Karel1,3; Abdellah, Mohamed1,5; Al-Marri, Mohammed J.4; Zheng, Kaibo1,4; Pullerits, Tonu1
KeywordSurface Plasmon Gold Nanorods Quantum Dots Energy Transfer Photoactivation
Source PublicationJOURNAL OF PHYSICS-CONDENSED MATTER
2016-06-29
ISSN0953-8984
DOI10.1088/0953-8984/28/25/254001
Volume28Issue:25
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPhysics, Condensed Matter
WOS Research AreaPhysics
WOS KeywordLIGHT-EMITTING-DIODES ; GOLD NANORODS ; ENERGY-TRANSFER ; SOLAR-CELL ; SEMICONDUCTOR NANOCRYSTALS ; ENHANCED FLUORESCENCE ; SILVER NANOPARTICLES ; ELECTRON INJECTION ; AG NANOPARTICLES ; ZNO SYSTEM
AbstractIn a composite film of CdxSeyZn1-xS1-y gradient core-shell quantum dots (QDs) and gold nanorods (NRs), the optical properties of the QDs are drastically affected by the plasmonic nanoparticles. We provide a careful study of the two-step formation of the film and its morphology. Subsequently we focus on QD luminescence photoactivation-a process induced by photochemical changes on the QD surface. We observe that even a sparse coverage of AuNRs can completely inhibit the photoactivation of the QDs' emission in the film. We demonstrate that the inhibition can be accounted for by a rapid energy transfer between QDs and AuNRs. Finally, we propose that the behavior of emission photoactivation can be used as a signature to distinguish between energy and electron transfer in the QD-based materials.
Language英语
WOS IDWOS:000376693100002
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171001
Collection中国科学院大连化学物理研究所
Corresponding AuthorZidek, Karel; Pullerits, Tonu
Affiliation1.Lund Univ, Ctr Chem, Dept Chem Phys, POB 124, S-22100 Lund, Sweden
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
3.Acad Sci Czech Republic, Inst Plasma Phys, Reg Ctr Special Opt & Optoelect Syst TOPTEC, Slovankou 1782-3, Prague 18200 8, Czech Republic
4.Qatar Univ, Coll Engn, Gas Proc Ctr, POB 2713, Doha, Qatar
5.South Valley Univ, Fac Sci, Dept Chem, Qena 83523, Egypt
Recommended Citation
GB/T 7714
Chen, Junsheng,Zidek, Karel,Abdellah, Mohamed,et al. Surface plasmon inhibited photo-luminescence activation in CdSe/ZnS core-shell quantum dots[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2016,28(25).
APA Chen, Junsheng,Zidek, Karel,Abdellah, Mohamed,Al-Marri, Mohammed J.,Zheng, Kaibo,&Pullerits, Tonu.(2016).Surface plasmon inhibited photo-luminescence activation in CdSe/ZnS core-shell quantum dots.JOURNAL OF PHYSICS-CONDENSED MATTER,28(25).
MLA Chen, Junsheng,et al."Surface plasmon inhibited photo-luminescence activation in CdSe/ZnS core-shell quantum dots".JOURNAL OF PHYSICS-CONDENSED MATTER 28.25(2016).
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