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arXiv 1112.4397cond-mat.mtrl-sci
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以原子层沉积的Al2O3作为顶栅介质的MoS2双栅MOSFET

MoS2 Dual-Gate MOSFET with Atomic-Layer-Deposited Al2O3 as Top-Gate Dielectric

Han Liu, Peide D. Ye

摘要:

我们展示了原子层沉积(ALD)高k电介质集成在二维(2D)层状结构二硫化钼(MoS 2)晶体和MoS 2双栅n沟道MOSFET上,ALD Al 2 O3作为顶栅电介质。我们对MOSFET结构的C-V研究表明,二维MoS 2晶体和ALD Al 2 O3之间有良好的界面。当Vds= 2 V时,沟道宽度为3 μm,沟道长度为9 μm,顶栅长度为3 μm时,采用背栅和顶栅的最大漏电流分别为7.07mA/mm和6.42mA/mm。我们实现了最高的场效应迁移率的电子使用背栅控制为517 cm^2/Vs的最高电流开/关比超过10^8。

英文摘要:

We demonstrate atomic-layer-deposited (ALD) high-k dielectric integration on two-dimensional (2D) layer-structured molybdenum disulfide (MoS2) crystals and MoS2 dual-gate n-channel MOSFETs with ALD Al2O3 as top-gate dielectric. Our C-V study of MOSFET structures shows good interface between 2D MoS2 crystal and ALD Al2O3. Maximum drain currents using back-gates and top-gates are measured to be 7.07mA/mm and 6.42mA/mm at Vds=2V with a channel width of 3 μm, a channel length of 9 μm, and a top-gate length of 3 μm. We achieve the highest field-effect mobility of electrons using back-gate control to be 517 cm^2/Vs. The highest current on/off ratio is over 10^8.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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