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题名: A Surface Femtosecond Two-Photon Photoemission Spectrometer for Excited Electron Dynamics and Time-Dependent Photochemical Kinetics
作者: Ren, Ze-feng1;  Zhou, Chuan-yao1;  Ma, Zhi-bo1;  Xiao, Chun-lei1;  Mao, Xin-chun1;  Dai, Dong-xu1;  LaRue, Jerry2;  Cooper, Russell2;  Wodtke, Alec M.2;  Yang, Xue-ming1
通讯作者: 杨学明
关键词: Femtosecond two-photon photoemission spectropy ;  Time-resolved ;  Ultrafast excited electron dynamics ;  Surface photochemical kinetics
刊名: CHINESE JOURNAL OF CHEMICAL PHYSICS
发表日期: 2010-06-27
DOI: 10.1088/1674-0068/23/03/255-261
卷: 23, 期:3, 页:255-261
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1102
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: A surface femtosecond two-photon photoemission (2PPE) spectrometer devoted to the study of ultrafast excited electron dynamics and photochemical kinetics on metal and metal oxide surfaces has been constructed. Low energy photoelectrons are measured using a hemispherical electron energy analyzer with an imaging detector that allows us to detect the energy and the angular distributions of the photoelectrons simultaneously. A Mach-Zehnder interferometer was built for the time-resolved 2PPE (TR-2PPE) measurement to study ultrafast surface excited electron dynamics, which was demonstrated on the Cu(111) surface. A scheme for measuring time-dependent 2PPE (TD-2PPE) spectra has also been developed for studies of surface photochemistry. This technique has been applied to a preliminary study on the photochemical kinetics on ethanol/TiO(2)(110). We have also shown that the ultrafast dynamics of photoinduced surface excited resonances can be investigated in a reliable way by combining the TR-2PPE and TD-2PPE techniques.
关键词[WOS]: MOLECULE-METAL INTERFACES ;  IMAGE-POTENTIAL STATES ;  RESOLVED PHOTOEMISSION ;  ENERGY RELAXATION ;  SPECTROSCOPY ;  EXCITATION ;  CU(111)
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000280094700003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103195
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

Recommended Citation:
Ren, Ze-feng,Zhou, Chuan-yao,Ma, Zhi-bo,et al. A Surface Femtosecond Two-Photon Photoemission Spectrometer for Excited Electron Dynamics and Time-Dependent Photochemical Kinetics[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2010,23(3):255-261.
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