Three-particle annihilation in a 2D heterostructure revealed through data-hypercubic photoresponse microscopy (Conference Presentation)

Nathaniel M. Gabor

doi:10.1117/12.2262610

12 June 2017 Three-particle annihilation in a 2D heterostructure revealed through data-hypercubic photoresponse microscopy (Conference Presentation)

Nathaniel M. Gabor

Author Affiliations +

Proceedings Volume 10194, Micro- and Nanotechnology Sensors, Systems, and Applications IX; 101940G (2017) https://doi.org/10.1117/12.2262610
Event: SPIE Defense + Security, 2017, Anaheim, CA, United States

Abstract

Van de Waals (vdW) heterostructures – which consist of precisely assembled atomically thin electronic materials - exhibit unusual quantum behavior. These quantum materials-by-design are of fundamental interest in basic scientific research and hold tremendous potential in advanced technological applications. Problematically, the fundamental optoelectronic response in these heterostructures is difficult to access using the standard techniques within the traditions of materials science and condensed matter physics. In the standard approach, characterization is based on the measurement of a small amount of one-dimensional data, which is used to gain a precise picture of the material properties of the sample. However, these techniques are fundamentally lacking in describing the complex interdependency of experimental degrees of freedom in vdW heterostructures. In this talk, I will present our recent experiments that utilize a highly data-intensive approach to gain deep understanding of the infrared photoresponse in vdW heterostructure photodetectors. These measurements, which combine state-of-the-art data analytics and measurement design with fundamentally new device structures and experimental parameters, give a clear picture of electron-hole pair interactions at ultrafast time scales.

Conference Presentation

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Nathaniel M. Gabor "Three-particle annihilation in a 2D heterostructure revealed through data-hypercubic photoresponse microscopy (Conference Presentation)", Proc. SPIE 10194, Micro- and Nanotechnology Sensors, Systems, and Applications IX, 101940G (12 June 2017); https://doi.org/10.1117/12.2262610

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KEYWORDS

Heterojunctions

Microscopy

Standards development

Condensed matter physics

Infrared photography

Infrared radiation

Materials science

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