Unidirectional Alignment of AgCN Microwires on Distorted Transition Metal Dichalcogenide Crystals
| العنوان: | Unidirectional Alignment of AgCN Microwires on Distorted Transition Metal Dichalcogenide Crystals |
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| المؤلفون: | Byungkyu Yu, Hyeonhu Bae, Hyeonsik Cheong, Woongki Na, Soyeon Choi, Kwanpyo Kim, Hoonkyung Lee, Yangjin Lee, Myeongjin Jang |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Materials science, Nanostructure, Hexagonal phase, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, 02 engineering and technology, Substrate (electronics), 010402 general chemistry, 021001 nanoscience & nanotechnology, Epitaxy, 01 natural sciences, 0104 chemical sciences, Crystal, symbols.namesake, Chemical physics, Phase (matter), symbols, General Materials Science, van der Waals force, 0210 nano-technology, Raman spectroscopy |
| الوصف: | Van der Waals epitaxy on the surface of two-dimensional (2D) layered crystals has gained significant research interest for the assembly of well-ordered nanostructures and fabrication of vertical heterostructures based on 2D crystals. Although van der Waals epitaxial assembly on the hexagonal phase of transition metal dichalcogenides (TMDCs) has been relatively well characterized, a comparable study on the distorted octahedral phase (1T' or Td) of TMDCs is largely lacking. Here we investigate the assembly behavior of one-dimensional (1D) AgCN microwires on various distorted TMDC crystals, namely 1T'-MoTe2, Td-WTe2, and 1T'-ReS2. The unidirectional alignment of AgCN chains is observed on these crystals, reflecting the symmetry of underlying distorted TMDCs. Polarized Raman spectroscopy and transmission electron microscopy directly confirm that AgCN chains display the remarkable alignment behavior along the distorted chain directions of underlying TMDCs. The observed unidirectional assembly behavior can be attributed to the favorable adsorption configurations of 1D chains along the substrate distortion, which is supported by our theoretical calculations and observation of similar assembly behavior from different cyanide chains. The aligned AgCN microwires can be harnessed as facile markers to identify polymorphs and crystal orientations of TMDCs. 23 pages, 6 main figures |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3050332374d760057a3c3f520be939b http://arxiv.org/abs/2102.08006 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....a3050332374d760057a3c3f520be939b |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |