activity
20012023
most citedBand Gap Engineering with Ultralarge Biaxial Strains in Suspended Monolayer MoS2

614 citations · 1.1k across the 20 of their papers we have counts for

collaborators

20 papers

physics.optics2023★ 1 cited

Imaging Strain-Localized Single-Photon Emitters in Layered GaSe below the Diffraction Limit

Weijun Luo, Benjamin Lawrie, Alexander Puretzky +6

Nanoscale strain control of exciton funneling is an increasingly critical tool for the scalable production of single photon emitters (SPEs) in two-dimensional materials. However, c…

cond-mat.mtrl-sci2022

Deterministic Localization of Strain-induced Single-photon Emitters in Multilayer GaSe

Weijun Luo, Alexander Puretzky, Benjamin Lawrie +7

Nanoscale strain has emerged as a powerful tool for controlling single-photon emitters (SPEs) in atomically thin transition metal dichalcogenides (TMDCs)(1, 2). However, quantum em…

cs.LG2022★ 13 cited

Identifying charge density and dielectric environment of graphene using Raman spectroscopy and deep learning

Zhuofa Chen, Yousif Khaireddin, Anna K. Swan

The impact of the environment on graphene's properties such as strain, charge density, and dielectric environment can be evaluated by Raman spectroscopy. These environmental intera…

physics.app-ph2020

Ultra-low doping and local charge variation in graphene measured by Raman: experiment and simulation

Zhuofa Chen, Nathan Ullberg, Mounika Vutukuru +2

Avoiding charge density variations and impurities in graphene is vital for high-quality graphene-based devices. Here, we demonstrate an optical method using Raman 2D peak-split to…

physics.app-ph2019

Monitoring the low doping regime in graphene using Raman 2D peak-splits: Comparison of gated Raman and transport measurements

Zhuofa Chen, Nathan Ullberg, Mounika Vutukuru +2

Avoiding charge density fluctuations and impurities in graphene is vital for high-quality graphene-based devices. Traditional characterization methods require device fabrication an…

physics.app-ph2018

Modeling and Thermal Metrology of Thermally Isolated MEMS Electrothermal Actuators for Strain Engineering of 2D Materials

Mounika Vutukuru, Jason W. Christopher, Corey Pollock +2

We present electrothermal microelectromechanical (MEMS) actuators as a practical platform for straining 2D materials. The advantages of the electrothermal actuator is its high outp…