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. 2024 Sep;36(39):e2407586.
doi: 10.1002/adma.202407586. Epub 2024 Aug 9.

Self-Anchored Van-Der-Waals Stacking Growth of Transition-Metal Dichalcogenide Nanoplates

Dingding Jiang  1   2   3 , Ya-Nan Tang  1   2 , Di Wang  4 , Xiangpeng Xu  4 , Jiang Sun  1   2 , Rong Ma  2   3 , Wenhao Li  2   3 , Zhiya Han  5 , Yunqi Liu  2   3 , Dacheng Wei  1   2
Affiliations

Self-Anchored Van-Der-Waals Stacking Growth of Transition-Metal Dichalcogenide Nanoplates

Dingding Jiang et al. Adv Mater. 2024 Sep.

Abstract

Transition-metal dichalcogenide (TMDs) nanoplates exhibit unique properties different from their monolayer counterparts. Controllable nucleation and growth are prerequisite and highly desirable for their practical applications. Here, a self-anchored van-der-Waals stacking growth method is developed, by which the substrate pit induced by precursor etching anchors the source material, impedes the lateral spreading of source droplets and facilitates the in situ stacking growth of high-quality TMD nanoplates with a thickness of tens to hundreds of nanometers at well-defined locations. As such, an array of TMD nanoplates with controlled lateral dimensions are produced and applied in arrayed photodetectors. This study solves the problem of controllable preparation of TMD nanoplates, holding promise for applications in electronics and optoelectronics.

Keywords: nanoplate; photodetectors; self‐anchored growth; transition‐metal dichalcogenide; van der Waals stacking.

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