Micro-reflectance and transmittance spectroscopy: a versatile and powerful tool to characterize 2D materials

By R. Frisenda, Yue Niu, Patricia Gant, A. Molina‐Mendoza, R. Schmidt, R. Bratschitsch, Jinxin Liu, L. Fu, Dumitru Dumcenco, Andras Kis and 2 more. 2016

178 citations recorded by the source corpus.

Optical spectroscopy techniques such as differential reflectance and transmittance have proven to be very powerful techniques for studying 2D materials. However, a thorough description of the experimental setups needed to carry out these measurements is lacking in the literature. We describe a versatile optical microscope setup for carrying out differential reflectance and transmittance spectroscopy in 2D materials with a lateral resolution of ~1 µm in the visible and near-infrared part of the spectrum. We demonstrate the potential of the presented setup to determine the number of layers of 2D materials and characterize their fundamental optical properties, such as excitonic resonances. We illustrate its performance by studying mechanically exfoliated and chemical vapor-deposited transition metal dichalcogenide samples.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/6adf849b1ca05cf8ae425396245abc2f4eca73df

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In Atomic and Molecular Physics, and Optics

In Materials Chemistry

Citations in the corpus

Production and processing of graphene and related materials (2020, background): “10 compares different optical microscopy characterization methods, studying the same system: multi-spectral, hyper-spectral and micro transmittance of 1-3L-MoS2 [1421, 1431, 1434].”