Ultrafast Carrier Dynamics in Type II ZnSe/CdS/ZnSe Nanobarbells
Ultrafast Carrier Dynamics in Type II ZnSe/CdS/ZnSe Nanobarbells
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DOI：
10.1021/nn100229x
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发表时间：
2010-04-01
期刊：
影响因子：
17.1
通讯作者：
Zamkov, Mikhail
中科院分区：
文献类型：
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作者：
Hewa-Kasakarage, Nishshanka N.;El-Khoury, Patrick Z.;Zamkov, Mikhail
我们采用飞秒瞬态吸收光谱得到洞察超快过程发生在II型ZnSe/CdS异质结nimocrystals通过胶体路线制造的接口，包括杠铃状排列的ZnSe尖端和CdS纳米棒。我们的研究表明，ZnSe尖端的共振激发导致激发电子前所未有地快速转移到纳米棒的CdS畴中（
We employ femtosecond transient absorption spectroscopy to get an insight into ultrafast processes occurring at the interface of type II ZnSe/CdS heterostructured nimocrystals fabricated via colloidal routes and comprising a barbell-like arrangement of ZnSe tips and CdS nanorods. Our study shows that resonant excitation of ZnSe tips results in an unprecedently fast transfer of excited Electrons into CdS domains of nanobarbells (