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首页> 外文期刊>ACS applied materials & interfaces >A New 2H-2H '/1T Cophase in Polycrystalline MoS2 and MoSe2 Thin Films
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A New 2H-2H '/1T Cophase in Polycrystalline MoS2 and MoSe2 Thin Films

机译:多晶MoS2和MoSe2薄膜中的新型2H-2H'/ 1T同相

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摘要

We report on 2H-2H'/1T phase conversion of MoS2 and MoSe2 polycrystalline films grown by thermally assisted conversion. The structural conversion of the transition metal dichalcogenides was successfully carried out by organolithium treatment on chip. As a result we obtained a new 2H-2H'/1T cophase system of the TMDs thin films which was verified by Raman spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The conversion was successfully carried out on selected areas yielding a lateral heterostructure between the pristine 2H phase and the 2H'/1T cophase regions. Scanning electron microscopy and atomic force microscopy revealed changes in the surface morphology and work function of the cophase system in comparison to the pristine films, with a surprisingly sharp lateral interface region.
机译:我们报告了通过热辅助转化生长的MoS2和MoSe2多晶薄膜的2H-2H'/ 1T相转化。通过芯片上的有机锂处理成功地完成了过渡金属二卤化物的结构转化。结果,我们获得了TMDs薄膜的新型2H-2H'/ 1T共相体系,该体系已通过拉曼光谱,X射线衍射和X射线光电子能谱进行了验证。在选定的区域成功进行了转化,从而在原始的2H相和2H'/ 1T共相区域之间产生了横向异质结构。扫描电子显微镜和原子力显微镜揭示了与原始膜相比,同相系统的表面形态和功函数的变化,具有令人惊讶的尖锐的横向界面区域。

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