Surface plasmon inhibited photo-luminescence activation in CdSe/ZnS core-shell quantum dots

doi:10.1088/0953-8984/28/25/254001

	Surface plasmon inhibited photo-luminescence activation in CdSe/ZnS core-shell quantum dots
	Chen, Junsheng 2,3; Zidek, Karel 2,4; Abdellah, Mohamed 2,5; Al-Marri, Mohammed J.1; Zheng, Kaibo 1,2; Pullerits, Tonu 2
刊名	JOURNAL OF PHYSICS-CONDENSED MATTER
	2016-06-29
卷号	28 期号:25
关键词	Surface Plasmon Gold Nanorods Quantum Dots Energy Transfer Photoactivation
ISSN号	0953-8984
DOI	10.1088/0953-8984/28/25/254001
文献子类	Article
英文摘要	In 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.
WOS关键词	LIGHT-EMITTING-DIODES ; GOLD NANORODS ; ENERGY-TRANSFER ; SOLAR-CELL ; SEMICONDUCTOR NANOCRYSTALS ; ENHANCED FLUORESCENCE ; SILVER NANOPARTICLES ; ELECTRON INJECTION ; AG NANOPARTICLES ; ZNO SYSTEM
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000376693100002
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/171000]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Zidek, Karel; Pullerits, Tonu
作者单位	1.Qatar Univ, Coll Engn, Gas Proc Ctr, POB 2713, Doha, Qatar 2.Lund Univ, Ctr Chem, Dept Chem Phys, POB 124, S-22100 Lund, Sweden 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 4.Acad Sci Czech Republic, Inst Plasma Phys, Reg Ctr Special Opt & Optoelect Syst TOPTEC, Slovankou 1782-3, Prague 18200 8, Czech Republic 5.South Valley Univ, Fac Sci, Dept Chem, Qena 83523, Egypt
推荐引用方式 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).