A near ambient pressure photoemission electron microscope (NAP-PEEM)
文献类型：期刊论文
| 作者 | Ning, Yanxiao1; Fu, Qiang1; Li, Yifan1,2; Zhao, Siqin1,3; Wang, Chao1,3; Breitschaft, Martin4; Hagen, Sebastian4; Schaff, Oliver4; Bao, Xinhe1,2 |
| 刊名 | ULTRAMICROSCOPY
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 200页码:105-110 |
| ISSN号 | 0304-3991 |
| 关键词 | PEEM LEEM Differential pumping Near ambient pressure surface techniques High pressure cell |
| DOI | 10.1016/j.ultramic.2019.02.028 |
| 通讯作者 | Fu, Qiang(qfu@dicp.ac.cn) |
| 英文摘要 | Photoemission electron microscopy (PEEM) is a powerful surface technique for dynamic imaging of surface processes while PEEM studies have been performed under ultrahigh vacuum or high vacuum conditions. Here we report on a near ambient pressure PEEM (NAP-PEEM) instrument, which enables high resolution PEEM imaging in near ambient pressure (> 1 mbar) gases over a wide temperature range (150 - 1200 K). Installed with an electron gun near ambient pressure low energy electron microscopy (NAP-LEEM) can be achieved as well. The success of this new NAP-PEEM/LEEM instrument relies on the following key design concepts. First, a two-stage accelerating electric field consisting of a low field region between sample and intermediate electrode ("nozzle") and a high field between nozzle and objective lens. Second, a three-stage differential pumping system allowing a near ambient pressure atmosphere at the sample surface while ultrahigh vacuum maintained in the imaging lens systems. Third, a unique NAP cell with gas inlet/outlet, light illumination, sample cooling/heating, and precise sample positioning. The new technique will have important applications in surface catalysis, thin film growth, and energy conversion devices under nearly realistic working conditions. |
| WOS关键词 | RAY PHOTOELECTRON-SPECTROSCOPY ; SURFACE-CHEMISTRY ; HIGH-TEMPERATURES ; RESOLUTION ; DESIGN ; SYSTEM ; IMAGE |
| 资助项目 | National development Project for Major Scientific Research Facility[ZDYZ2012-2] ; National Natural Science Foundation of China[21825203] ; National Natural Science Foundation of China[21688102] ; National Natural Science Foundation of China[21573224] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17020000] |
| WOS研究方向 | Microscopy |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000465417500015 |
| 资助机构 | National development Project for Major Scientific Research Facility ; National development Project for Major Scientific Research Facility ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National development Project for Major Scientific Research Facility ; National development Project for Major Scientific Research Facility ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National development Project for Major Scientific Research Facility ; National development Project for Major Scientific Research Facility ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National development Project for Major Scientific Research Facility ; National development Project for Major Scientific Research Facility ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/165500]  |
| 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 | Fu, Qiang |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.SPECS Surface Nano Anal GmbH, D-13355 Berlin, Germany |
| 推荐引用方式 GB/T 7714 | Ning, Yanxiao,Fu, Qiang,Li, Yifan,et al. A near ambient pressure photoemission electron microscope (NAP-PEEM)[J]. ULTRAMICROSCOPY,2019,200:105-110. |
| APA | Ning, Yanxiao.,Fu, Qiang.,Li, Yifan.,Zhao, Siqin.,Wang, Chao.,...&Bao, Xinhe.(2019).A near ambient pressure photoemission electron microscope (NAP-PEEM).ULTRAMICROSCOPY,200,105-110. |
| MLA | Ning, Yanxiao,et al."A near ambient pressure photoemission electron microscope (NAP-PEEM)".ULTRAMICROSCOPY 200(2019):105-110. |
入库方式： OAI收割
来源：大连化学物理研究所
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