Research School of Engineering, College of Engineering and Computer Science, the Australian National University, Canberra, ACT 0200, Australia.
Nanoscale. 2016 Jan 7;8(1):129-35. doi: 10.1039/c5nr04366b.
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.
对于设计基于新兴二维（2D）黑磷烯的未来半导体器件而言，表面电势和界面电荷转移效率极其重要。在此，我们直接测量了在金上的单层和少数层黑磷烯强烈的层依赖型表面电势，这与已报道的理论预测一致。同时，我们使用光学方法光致发光（PL）光谱法来探测黑磷烯-金混合系统中的电荷转移。我们首次在黑磷烯-金混合系统中观察到高度各向异性和层依赖型的 PL 猝灭，这归因于高度各向异性/层依赖型的界面电荷转移。
