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21 August 2020 Photoluminescence and surface photovoltage studies of MoS2/Au-nanogratings
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We fabricated hybrid nanostructures consisting of MoS2 monolayers and plasmonic Au nanogratings. The polarization dependence of optical reflectivity showed a clear feature of surface plasmon polariton excitation. The MoS2 monolayers on Au nanogratings exhibited significantly enhanced photoluminescence intensity, compared with those on flat SiO2/Si substrates and Au thin films. Polarization-dependent surface photovoltage mapping was also obtained by Kelvin-probe force microscopy to study the exciton-plasmon coupling in the samples. In this presentation, we will discuss the interplay among photons, excitons, and surface plasmons in the MoS2-metal nanostructures.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Soyeong Kwon, Jungeun Song, Bora Kim, Hyeji Choi, Sang Wook Lee, Seong-Yeon Lee, Ki-Ju Yee, Soo Ho Choi, Ki Kang Kim, and Dong-Wook Kim "Photoluminescence and surface photovoltage studies of MoS2/Au-nanogratings", Proc. SPIE 11465, Low-Dimensional Materials and Devices 2020, 114650L (21 August 2020);

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