Electronic structures of 1-ML C84/Ag(111): Energy level alignment and work function variation
文献类型：期刊论文
| 作者 | Liu, Wei-Hui; Kui RX(奎热西) ; Qian HJ(钱海杰); Wang JO(王嘉鸥); Li, Hong-Nian; Ibrahim, Kurash; Qian, Hai-Jie; Wang, Jia-Ou; Sheng, Chun-Qi; Chen, Da
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| 刊名 | Surface Science
 |
| 出版日期 | 2017 |
| 卷号 | 666页码:23-27 |
| 关键词 | Photoelectron spectroscopy Electronic structure Work function Fullerene C84 |
| ISSN号 | 0039-6028 |
| DOI | 10.1016/j.susc.2017.08.015 |
| 文献子类 | Article |
| 英文摘要 | The electronic structures of fullerene/metal interface are critical to the performance of devices based on fullerene in molecular electronics and organic electronics. Herein, we investigate the electronic structures at the interface between C-84 and Ag(111) by photoelectron spectroscopy and soft X-ray absorption spectroscopy techniques. It is observed that C-84 monolayer on Ag(111) surface (1-ML C-84/Ag(111)) has metallic nature. A charge transfer from substrate to the unoccupied states of C-84 is determined to be 1.3 electrons per molecule. However, the work function of 1-ML C-84 (4.72 eV) is observed slightly larger than that of the clean Ag(111) substrate (4.50 eV). A bidirectional charge transfer model is introduced to understand the work function variation of the fullerene/metal system. In addition to the charge transfer from substrate to the adsorbate's unoccupied states, there exists non-negligible back charge transfer from fullerene occupied molecular orbital to the metal substrate through interfacial hybridization. The Fermi level will be pinned at similar to 4.72 eV for C-84 monolayer on coinage metal substrate. (C) 2017 Elsevier B.V. All rights reserved. |
| 电子版国际标准刊号 | 1879-2758 |
| WOS关键词 | INTERFACE DIPOLE ; C-60 MONOLAYER ; C-84 ; PHOTOEMISSION ; SURFACES ; CU(111) ; AG(111) ; ORGANIC/METAL ; TRANSISTORS ; AU(111) |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000413877900004 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284933]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Liu, Wei-Hui,Kui RX,Qian HJ,et al. Electronic structures of 1-ML C84/Ag(111): Energy level alignment and work function variation[J]. Surface Science,2017,666:23-27. |
| APA | Liu, Wei-Hui.,奎热西.,钱海杰.,王嘉鸥.,Li, Hong-Nian.,...&Wang, Peng.(2017).Electronic structures of 1-ML C84/Ag(111): Energy level alignment and work function variation.Surface Science,666,23-27. |
| MLA | Liu, Wei-Hui,et al."Electronic structures of 1-ML C84/Ag(111): Energy level alignment and work function variation".Surface Science 666(2017):23-27. |
入库方式： OAI收割
来源：高能物理研究所
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