title: Layer-dependent surface potential of phosphorene and anisotropic/layer-dependent charge transfer in phosphorene-gold hybrid systems.
abstract: The surface potential and the efficiency of interfacial charge transfer are extremely important for designing future semiconductor devices based on the emerging two-dimensional (2D) phosphorene. Here, we directly measured the strong layer-dependent surface potential of mono- and few-layered phosphorene on gold, which is consistent with the reported theoretical prediction. At the same time, we used an optical way photoluminescence (PL) spectroscopy to probe charge transfer in the phosphorene-gold hybrid system. We firstly observed highly anisotropic and layer-dependent PL quenching in the phosphorene-gold hybrid system, which is attributed to the highly anisotropic/layer-dependent interfacial charge transfer.
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au.
authors.forename: Renjing
authors.initials: R
authors.lastname: Xu
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au.
authors.forename: Jiong
authors.initials: J
authors.lastname: Yang
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au.
authors.forename: Han
authors.initials: H
authors.lastname: Yan
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au and School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Jiajie
authors.initials: J
authors.lastname: Pei
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au.
authors.forename: Ye Win
authors.initials: YW
authors.lastname: Myint
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au.
authors.forename: Shuang
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia. yuerui.lu@anu.edu.au.
authors.forename: Yuerui
authors.initials: Y
authors.lastname: Lu