Synthesis and Transfer of Single-Layer Transition Metal Disulfides on Diverse Surfaces
| Autor: | Tomas Palacios, Wenjing Fang, Xi Ling, Yi-Hsien Lee, Jing-Kai Huang, Chia-Seng Chang, Han Wang, Lili Yu, Yumeng Shi, Jing Kong, Lain-Jong Li, Mu Tung Chang, Cheng-Te Lin, Mildred S. Dresselhaus |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Surface Properties Mechanical Engineering Structural symmetry Bioengineering Nanotechnology General Chemistry Chemical vapor deposition Condensed Matter Physics Coupling (electronics) Transition metal Metals Fundamental physics Monolayer General Materials Science Disulfides Electronics Perylene Single layer |
| Zdroj: | Nano Letters. 13:1852-1857 |
| ISSN: | 1530-6992 1530-6984 |
| Popis: | Recently, monolayers of layered transition metal dichalcogenides (LTMD), such as MX2 (M = Mo, W and X = S, Se), have been reported to exhibit significant spin-valley coupling and optoelectronic performances because of the unique structural symmetry and band structures. Monolayers in this class of materials offered a burgeoning field in fundamental physics, energy harvesting, electronics, and optoelectronics. However, most studies to date are hindered by great challenges on the synthesis and transfer of high-quality LTMD monolayers. Hence, a feasible synthetic process to overcome the challenges is essential. Here, we demonstrate the growth of high-quality MS2 (M = Mo, W) monolayers using ambient-pressure chemical vapor deposition (APCVD) with the seeding of perylene-3,4,9,10-tetracarboxylic acid tetrapotassium salt (PTAS). The growth of a MS2 monolayer is achieved on various surfaces with a significant flexibility to surface corrugation. Electronic transport and optical performances of the as-grown MS2 monolayers are comparable to those of exfoliated MS2 monolayers. We also demonstrate a robust technique in transferring the MS2 monolayer samples to diverse surfaces, which may stimulate the progress on the class of materials and open a new route toward the synthesis of various novel hybrid structures with LTMD monolayer and functional materials. |
| Databáze: | OpenAIRE |
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