Opposite Polarity Surface Photovoltage of MoS2 Monolayers on Au Nanodot versus Nanohole Arrays
- Journal: ACS Applied Materials & Interfaces
- Published Year: 2020
- Authors: Jungeun Song, Soyeong Kwon, Bora Kim, Eunah Kim, Lakshmi N. S. Murthy, Taejin Lee, Inhae Hong, Byoung Hoon Lee, Sang Wook Lee, Soo Ho Choi, Ki Kang Kim, Chang-Hee Cho, Julia W. P. Hsu, Dong-Wook Kim
- Application: 2D materials, photoluminescence, TMDs
Summary
In this work researchers design plasmonic nanostructures that enable control over the spatial distribution of photo-generated carriers in MoS2/metal hybrid nanostructures. Surface potential maps, obtained by elvin probe force microscopy (KPFM) on NX10 AFM in glovebox, suggested that the potential gradient led to a distinct spatial distribution of photo-generated charges in the MoS2 monolayer samples under illumination. The work sheds light on the further optimizing optoelectronic characteristics and improving the performance of MoS2-based plasmonic devices.
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