| Autor: |
Rani, E. (Ekta), Gupta, V. K. (Vandna K.), Thasfiquzzaman, M. (Md), Talebi, P. (Parisa), Martinelli, A. (Anna), Niu, Y. (Yuran), Zakharov, A. (Alexei), Huttula, M. (Marko), Patanen, M. (Minna), Singh, H. (Harishchandra), Cao, W. (Wei) |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Popis: |
Despite the boom in catalytic response via constructing interfaces, understanding interfaces’ interaction in heterostructures is still a paradox. In this work, the interaction of Ni with MoS₂ in Ni-Ag-MoS₂ heterostructure are unveiled through synchrotron X-PEEM and what’s more, the missing interaction mechanism at the Ag-MoS₂ interface is probed via Raman mapping. The observed competition between the downshift of the E2g¹ and A1g modes due to charge carrier injection and the upshift of the E2g¹ and A1g modes due to compressive strain during reverse laser power experiment is assigned to the non-uniform growth of Ag nanoparticles, their intimate contact with MoS₂, and Ag intercalated layered MoS₂. The substantial improvement of the H₂ yield of the Ni-Ag-MoS₂ (∼55 μmol h−1 g−1) over the pristine MoS₂ and the binary Ag-MoS₂ evidence successful bonding of Ni, Ag and MoS₂. This study highlights the importance of considering both electronic coupling and strain to optically tune electromechanical properties of MoS₂. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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