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CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
Photoelectron spectroscopy study of the electronic structures at CoPc/Bi(111) interface
作者: Sun, HL; Liang, ZF; Shen, KC; Hu, JB; Ji, GW; Li, ZS; Li, HY; Zhu, ZY; Li, J; Gao, XY; Han, H; Jiang, Z; Song, F
刊名: SURFACE SCIENCE
出版日期: 2017
卷号: 661, 页码:34-41
关键词: Photoemission spectroscopy ; Electronic structure ; CoPc ; Bi(111) ; Interface
DOI: 10.1016/j.susc.2017.03.003
文章类型: 期刊论文
英文摘要: Self-assembly of functional molecules on solid substrate has been recognized as an appealing approach for the fabrication of diverse nanostructures for nanoelectronics. Herein, we investigate the growth of cobalt phthalocyanine (CoPc) on a Bi(111) surface with focus on the interface electronic structures utilizing photoelectron spectroscopy. While charge transfer from bismuth substrate to the molecule results in the emergence of an interface component in the Co 3p core level at lower binding energy, core-levels associated to the molecular ligand (C 1s and N 1s) are less influenced by the adsorption. In addition, density functional theory (DFT) calculations also support the empirical inference that the molecule-substrate interaction mainly involves the out-of-plane empty Co 3d orbital and bismuth states. Finally, valence band spectra demonstrate the molecule-substrate interaction is induced by interface charge transfer, agreeing well with core level measurements. Charge transfer is shown to be mainly from the underlying bismuth substrate to the empty states located at the central Co atom in the CoPc molecules. This report may provide a fundamental basis,to the on-surface engineering of interfaces for molecular devices and spintronics.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000401689400006
ISSN号: 0039-6028
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27410
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Sun, HL,Liang, ZF,Shen, KC,et al. Photoelectron spectroscopy study of the electronic structures at CoPc/Bi(111) interface[J]. SURFACE SCIENCE,2017-01-01,661:34-41.
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