Author
Jonas Ylönen
Bio: Jonas Ylönen is an academic researcher. The author has contributed to research in topics: Surface roughness & Surface plasmon. The author has co-authored 1 publications.
Papers
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TL;DR: In this paper, an optical amplification of 1L-MoS2 on the gold (Au) MG substrate was designed to operate in a glycerol environment with SP resonance (SPR) at 850nm excitation wavelength.
3 citations
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TL;DR: In this paper , the authors demonstrated enhanced excitonic photoluminescence (PL) and optoelectrical properties of monolayer MoS2/Au heterostructures on Si/SiO2 substrates.
Abstract:
Different MoS2/Au heterostructures can play important roles in tuning the photoluminescence (PL) and optoelectrical properties of monolayer MoS2. Previous studies on PL of MoS2/Au heterostructures have been mainly limited to the PL enhancement by using different Au nanostructures and PL quenching of monolayer MoS2 on flat Au surfaces. Here, we demonstrated enhanced excitonic PL of monolayer MoS2/Au heterostructures on Si/SiO2 substrates. By transferring the continuous monolayer MoS2 onto a stepped Au structure consisting of 60 nm and 100 nm Au films, MoS2/Au-60 and MoS2/Au-100 heterostructures exhibited enhanced PL emission with a blue-shifted PL peak when compared with MoS2/SiO2. Furthermore, the PL intensity of MoS2/Au-60 was ~2 fold larger than that of MoS2/Au-100. The different enhanced excitonic PL in MoS2/Au heterostructures could be attributed to the different charge transfer effect modified by the stepped Au structure. This work may provide insights into the excitonic PL and charge transfer effect of MoS2 on Au films and yield novel phenomena in MoS2/Au heterostructures for further study in PL tuning and optoelectrical properties.
2 citations
TL;DR: In this article , the authors demonstrate the enhanced excitonic photoluminescence (PL) emissions of monolayer MoS2/Au heterostructures on Si/SiO2 substrates.
Abstract: Different MoS2/Au heterostructures can play an important role in tuning the photoluminescence (PL) and optoelectrical properties of monolayer MoS2. Previous studies of PL of MoS2/Au heterostructures were mainly limited to the PL enhancement by using different Au nanostructures and PL quenching of monolayer MoS2 on flat Au surfaces. Here, we demonstrate the enhanced excitonic PL emissions of monolayer MoS2/Au heterostructures on Si/SiO2 substrates. By transferring the continuous monolayer MoS2 onto a stepped Au structure consisting of 60-nm and 100-nm Au films, the MoS2/Au-60 and MoS2/Au-100 heterostructures exhibit enhanced PL emissions, each with a blue-shifted PL peak in comparison with the MoS2/SiO2. Furthermore, the PL intensity of MoS2/Au-60 is about twice larger than that of MoS2/Au-100. The different enhanced excitonic PL emissions in MoS2/Au heterostructures can be attributed to the different charge transfer effects modified by the stepped Au structure. This work may provide an insight into the excitonic PL and charge transfer effect of MoS2 on Au film and yield novel phenomena in MoS2/Au heterostructures for further study of PL tuning and optoelectrical properties.
2 citations
TL;DR: WITio as discussed by the authors is a MATLAB data evaluation toolbox for the files generated by thousand WITec microscopes operated globally by thousands of academic and industrial users, enabling automation scripts, file batch processing, easy access to customized tools and more systematic data evaluation while reducing slow error-prone manual efforts.
1 citations