Folded MoS2 layers with reduced interlayer coupling

被引：0
作者：
Andres Castellanos-Gomez
Herre S. J. van der Zant
Gary A. Steele
机构：
[1] Delft University of Technology,Kavli Institute of Nanoscience
来源：
Nano Research | 2014年 / 7卷
关键词：
molybdenum disulfide (MoS; ); folded MoS; twisted MoS; interlayer coupling; Raman spectroscopy; photoluminescence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We study molybdenum disulfide (MoS2) structures generated by folding single-layer and bilayer MoS2 flakes. We find that this modified layer stacking leads to a decrease in the interlayer coupling and an enhancement of the photoluminescence emission yield. We additionally find that folded single-layer MoS2 structures show a contribution to photoluminescence spectra of both neutral and charged excitons, which is a characteristic feature of single-layer MoS2 that has not been observed in multilayer MoS2. The results presented here open the door to fabrication of multilayered MoS2 samples with high optical absorption while maintaining the advantageous enhanced photoluminescence emission of single-layer MoS2 by controllably twisting the MoS2 layers.
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页码：572 / 578
页数：6
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