Available on-demand - F.MT06.01.08
Dynamical Modulation of Defect-Phonon Coupling in Transition Metal Dichalcogenides
Chitraleema Chakraborty1,Christopher Ciccarino1,Prineha Narang1
The formation of atomic defects is unavoidable in 2D materials with currently available
growth techniques 1 . Nevertheless, there is a myriad of functionalities in modern optoelectronic
and nanophotonic devices that leverage quantum defects including the recent demonstration of
single photon emitters in 2D materials 2,3 . In parallel, advances in atomic-resolution imaging
techniques provide new opportunities to directly create, manipulate and characterize defects
down to the atomic scale in low-dimensional materials 4 . Therefore, we present theoretical
calculations and analysis of optically active quantum defects in 2D materials. We study the
electron-phonon interactions 5,6 of electronic transitions in defects and quantify their optical
efficiency by calculating the Huang-Rhys factor. This presents a pathway for maximizing the
optical efficiency of designer defect and provides a deterministic choice for defect creation at the
atomic scale using scanning probe techniques 2 .
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