Exciton strain mapping in 2D TMDCs for sensing and photodetection

Chandraman Patil; Jiachi Ye; Haoyan Kang; Hao Wang; Belal Jahannia; Salam Altaleb; Elham Heidari; Navid Asadizanjani; Volker J. Sorger; Hamed Dalir

doi:10.1117/12.2682123

5 October 2023 Exciton strain mapping in 2D TMDCs for sensing and photodetection

Chandraman Patil, Jiachi Ye, Haoyan Kang, Hao Wang, Belal Jahannia, Salam Altaleb, Elham Heidari, Navid Asadizanjani, Volker J. Sorger, Hamed Dalir

Author Affiliations +

Proceedings Volume 12651, Low-Dimensional Materials and Devices 2023; 1265108 (2023) https://doi.org/10.1117/12.2682123
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

Here we demonstrate Tungsten Disulfide (WS₂) integrated silicon nitride photodetector, and we experimentally tested the responsivity of 0.32 A/W. The spectroscopic results using PL and Raman mapping were used to understand strain effect on excitonic bandgap by studying characteristics like excitons, trions, E¹_2g, A¹_g and opto-electronic response. We show high potential for flexible sensors and high spectral resolution sensing.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chandraman Patil, Jiachi Ye, Haoyan Kang, Hao Wang, Belal Jahannia, Salam Altaleb, Elham Heidari, Navid Asadizanjani, Volker J. Sorger, and Hamed Dalir "Exciton strain mapping in 2D TMDCs for sensing and photodetection", Proc. SPIE 12651, Low-Dimensional Materials and Devices 2023, 1265108 (5 October 2023); https://doi.org/10.1117/12.2682123

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