文献类型：期刊文献

中文题名：Interfacial electronic structure at a metal–phthalocyanine/graphene interface:Copper–phthalocyanine versus iron–phthalocyanine

英文题名：Interfacial electronic structure at a metal-phthalocyanine/graphene interface: Copper-phthalocyanine versus iron-phthalocyanine

作者：Ye Wei-Guo[1];Liu Dan[1];Peng Xiao-Feng[1];Dou Wei-Dong[1]

机构：[1]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China

年份：2013

卷号：22

期号：11

中文期刊名：中国物理B：英文版

外文期刊名：CHINESE PHYSICS B

收录：SCI-EXPANDED(收录号：WOS:000327485400070)、CSTPCD、、EI(收录号：20134917055118)、Scopus(收录号：2-s2.0-84888626824)、WOS、CSCD、CSCD2013_2014

基金：Project supported by the National Natural Science Foundation of China (Grant No. 61106131), the Natural Science Foundation of Zhejiang Province, China (Grant No. Y6110072), the Talents Project of Science and Technology Department of Qianjiang City, China (Grant No. 2012R10075), and the Postdoctoral Science Foundation of China (Grant No. 2012M521119).

语种：英文

中文关键词：界面电子结构;铜酞菁;接口;铁酞菁;X-射线光电子能谱;分子轨道;费米能级;SLG

外文关键词：interfacial electronic structure; metal-phthalocyanine interface; graphene; workfunction

中文摘要：The energy level alignment of CuPc and FePc on single-layer graphene/Ni(111)(SLG/Ni)substrate was investigated by using ultraviolet and X-ray photoelectron spectroscopy(UPS and XPS).The highest occupied molecular orbitals(HOMOs)in a thick layer of CuPc and FePc lie at 1.04 eV and 0.90 eV,respectively,below the Fermi level of the SLG/Ni substrate.Weak adsorbate–substrate interaction leads to negligible interfacial dipole at the CuPc/SLG/Ni interface,while a large interfacial dipole(0.20 eV)was observed in the case of FePc/SLG/Ni interface,due to strong adsorbate–substrate coupling.In addition,a new interfacial electronic feature was observed for the first time in the case of FePc on SLG/Ni substrate.This interfacial state can be attributed to a charge transfer from the SLG/Ni substrate to unoccupied orbitals of FePc.

外文摘要：The energy level alignment of CuPc and FePc on single-layer graphene/Ni(111) (SLG/Ni) substrate was investigated by using ultraviolet and X-ray photoelectron spectroscopy (UPS and XPS). The highest occupied molecular orbitals (HO-MOs) in a thick layer of CuPc and FePc lie at 1.04 eV and 0.90 eV, respectively, below the Fermi level of the SLG/Ni substrate. Weak adsorbate-substrate interaction leads to negligible interfacial dipole at the CuPc/SLG/Ni interface, while a large interfacial dipole (0.20 eV) was observed in the case of FePc/SLG/Ni interface, due to strong adsorbate-substrate coupling. In addition, a new interfacial electronic feature was observed for the first time in the case of FePc on SLG/Ni substrate. This interfacial state can be attributed to a charge transfer from the SLG/Ni substrate to unoccupied orbitals of FePc.