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2D Hybrid Heterostructures from Transition Metal Dichalcogenides and Organic Systems

February 15, 2023 @ 7:00 am - 8:00 am

Over the past two decades, image reconstruction has tremendously gained in importance in MRI enabling reduced scan time, improved image quality, and extracting additional information from the measurements. In this time, MRI has witnessed extensive developments in advanced computational algorithms for image reconstruction, many of which have been fueled by signal processing advances in several areas, including multi-channel sampling, compressive sensing, dictionary learning, low-rank, and structured low-rank methods. Recently, also neural networks have been employed for image reconstruction achieving further improvements in scan time and image quality. Most importantly, some of these techniques have found their way in the products of MRI vendors and show significant impact in the clinical practice. These developments, together with the advancements in computational hardware have opened a new research field of MRI reconstruction as a computational imaging problem. In this talk, I will explain the framework of MRI reconstruction as a computational imaging problem and discuss some of the advantages it gives in addressing important clinical needs in MRI.

Speaker(s): Dr. Jong Hyun Choi,

Agenda:
Atomically thin transition metal dichalcogenides (TMDs) present extraordinary physicochemical properties that may not be accessible in bulk semiconductors. Recently, 2D hybrid heteromaterials have emerged upon integrating TMDs with molecular systems, including organic molecules, polymers, and metal-organic frameworks, that can tailor the TMD properties. The hybrid approach may enable future optoelectronics and energy applications. I will first introduce the field of 2D materials and describe how TMDs and their heterostructured combinations can be used in devices to maximize their unique properties. This talk will discuss our approach for modulating optoelectronic properties of individual flakes and heterobilayers using organic layers. We show, for example, that the intralayer photoluminescence and interlayer emission may be selectively and controllably tailored by a set of organic molecules with distinct properties. Related electronic transport and surface characteristics will also be delineated. With a vast library of organic molecules, this approach may form the basis of future applications. This presentation will be concluded with several exemplary applications.

Virtual: https://events.vtools.ieee.org/m/348248

Details

Date:
February 15, 2023
Time:
7:00 am - 8:00 am
Event Category:
Website:
https://events.vtools.ieee.org/m/348248

Organizer

fang_luo@stonybrook_edu
Email
fang_luo@stonybrook_edu
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