Photoelectron spectroscopy study of the electronic structures at CoPc/Bi(111) interface
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
2017
发表期刊SURFACE SCIENCE
ISSN0039-6028
卷号661页码:34-41
文章类型期刊论文
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.
关键词Photoemission Spectroscopy Electronic Structure Copc Bi(111) Interface
DOI10.1016/j.susc.2017.03.003
收录类别SCI
语种英语
WOS记录号WOS:000401689400006
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27410
专题中科院上海应用物理研究所2011-2018年
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Sun, HL,Liang, ZF,Shen, KC,et al. Photoelectron spectroscopy study of the electronic structures at CoPc/Bi(111) interface[J]. SURFACE SCIENCE,2017,661:34-41.
APA Sun, HL.,Liang, ZF.,Shen, KC.,Hu, JB.,Ji, GW.,...&Song, F.(2017).Photoelectron spectroscopy study of the electronic structures at CoPc/Bi(111) interface.SURFACE SCIENCE,661,34-41.
MLA Sun, HL,et al."Photoelectron spectroscopy study of the electronic structures at CoPc/Bi(111) interface".SURFACE SCIENCE 661(2017):34-41.
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