Low Temperature Heating of Silver?Mediated Exfoliation of MoS <sub>2</sub>
نویسندگان
چکیده
The need for high-quality large-scale monolayers of layered materials pushes the development scalable gold-mediated exfoliations. Gold proves to be a suitable adhesive exfoliation several 2D materials. However, extension other noble metals remains underwhelming as gold outperforms all previously studied by large margin. This is attributed compromised stability against oxidation and surface contamination less metals, leading nonideal interfaces exfoliation. closest competitor silver, where still leads factor 100 regarding exfoliated layer size. In this work, silver-mediated process performing on par with presented. combination freshly cleaved silver surfaces low-temperature annealing found crucial. yield shows dependence temperature, loss in performance higher temperature. Raman studies indicate inhomogeneous strain MoS2/Ag interface at these temperatures, which hints competing factors thermal activation versus silver. Finally, transfer implemented promote fully functional substrate. Ultimately, heating up exfoliations tips strict balance between interfacial interactions contaminations toward robust high monolayer demonstrated
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ژورنال
عنوان ژورنال: Advanced Materials Interfaces
سال: 2022
ISSN: ['2196-7350']
DOI: https://doi.org/10.1002/admi.202200362