黑磷
材料科学
晶体管
光电子学
磷烯
场效应晶体管
磷
领域(数学)
纳米技术
工程物理
石墨烯
量子力学
电压
物理
冶金
纯数学
数学
作者
Likai Li,Yijun Yu,Guo Jun Ye,Q. Q. Ge,Xiaomin Ou,Hua Wu,D. L. Feng,Xianhui Chen,Yuanbo Zhang
标识
DOI:10.1038/nnano.2014.35
摘要
Two-dimensional crystals have emerged as a class of materials that may impact future electronic technologies. Experimentally identifying and characterizing new functional two-dimensional materials is challenging, but also potentially rewarding. Here, we fabricate field-effect transistors based on few-layer black phosphorus crystals with thickness down to a few nanometres. Reliable transistor performance is achieved at room temperature in samples thinner than 7.5 nm, with drain current modulation on the order of 10(5) and well-developed current saturation in the I-V characteristics. The charge-carrier mobility is found to be thickness-dependent, with the highest values up to ∼ 1,000 cm(2) V(-1) s(-1) obtained for a thickness of ∼ 10 nm. Our results demonstrate the potential of black phosphorus thin crystals as a new two-dimensional material for applications in nanoelectronic devices.
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