Transition Metal Dichalcogenides Heterostructures Nanoribbons

The integration of two-dimensional van der Waals (vdW)heterostructuresbreaks through the constraints of lattice matching and symmetry, offeringsubstantial opportunities in the development of advanced materials.After the width is reduced, one-dimensional vdW heterostructures showrich band structures and strong spin-orbit coupling behaviors,widening the applications in optoelectronics and spintronics. However,the synthesis of one-dimensional vdW heterostructure nanoribbons hasrarely been reported yet. Herein, we report a general approach torealizing transition metal dichalcogenide (TMD) heterostructure nanoribbonsfor the first time by unzipping self-assembled TMD heterostructurenanoscrolls. As demonstrated by MoS2/WS2 nanoribbons,the obtained TMD heterostructure nanoribbons with alternating stackedlayers possess flat edge structures and high quality. Meanwhile, thisstrategy can be extended to create diverse vdW TMD nanoribbons, demonstratingits versatility. Our work thus shows great potential to prepare TMDheterostructure nanoribbons with various compositions and stackingmodes, and new structures can be customized with targeted properties.

Automated summary

The integration of two-dimensional van der Waals heterostructures offers opportunities for the development of advanced materials. One-dimensional van der Waals heterostructures show rich band structures and strong spin-orbit coupling behaviors, widening their applications in optoelectronics and spintronics. However, the synthesis of one-dimensional van der Waals heterostructure nanoribbons has rarely been reported. Here, we report a general approach to realizing transition metal dichalcogenide heterostructure nanoribbons by unzipping self-assembled TMD heterostructure nanoscrolls. The obtained TMD heterostructure nanoribbons possess flat edge structures and high quality, demonstrating their potential for diverse compositions and stacking modes.