6 papers
Nanoscopy of Excitons in Atomically Thin In-Plane Heterostructures with Nanointerfaces
Mahdi Ghafariasl, Tianyi Zhang, Sampath Gamage +8
Atomically sharp 2D in-plane heterostructures with nanoscale interfaces provide a powerful platform for tailoring optical and electrical properties at the nanoscale, enabling novel…
Excitonic Landscapes in Monolayer Lateral Heterostructures Revealed by Unsupervised Machine Learning
Maninder Kaur, Nicolas T. Sandino, Jason P. Terry +2
Two-dimensional (2D) in-plane heterostructures including compositionally graded alloys and lateral heterostructures with defined interfaces display rich optoelectronic properties a…
Infrared Nanoimaging of Hydrogenated Perovskite Nickelate Synaptic Devices
Sampath Gamage, Sukriti Manna, Marc Zajac +13
Solid-state devices made from correlated oxides such as perovskite nickelates are promising for neuromorphic computing by mimicking biological synaptic function. However, comprehen…
Sulfur Vacancy Related Optical Transitions in Graded Alloys of MoxW1-xS2 Monolayers
Mahdi Ghafariasl, Tianyi Zhang, Zachary D. Ward +6
Engineering the electronic bandgap is of utmost importance in diverse domains ranging from information processing and communication technology to sensing and renewable energy appli…
Photodegradation and Thermal Effects in Violet Phosphorus
Mahdi Ghafariasl, Sarabpreet Singh, Sampath Gamage +3
Violet phosphorus (VP) has garnered attention for its appealing physical properties and potential applications in optoelectronics. We present a comprehensive investigation of the p…
Substrate Induced van der Waals Force Effect on the Stability of Violet Phosphorous
Sarabpreet Singh, Mahdi Ghafariasl, Hsin-Yu Ko +4
The van der Waals (vdWs) forces between monolayers has been a unique distinguishing feature of exfoliable materials since the first isolation of graphene. However, the vdWs interac…