Chalcogenide 2D materials for dielectric and ferroelectric applications: low absorption and wide transparency materials for optical and RF sensors (Conference Presentation)

Ganga Dhar Singh; Kamdeo Mandal

doi:10.1117/12.2661223

14 June 2023 Chalcogenide 2D materials for dielectric and ferroelectric applications: low absorption and wide transparency materials for optical and RF sensors (Conference Presentation)

Ganga Dhar Singh, Kamdeo Mandal

Author Affiliations +

Proceedings Volume PC12548, Smart Biomedical and Physiological Sensor Technology XX; PC1254805 (2023) https://doi.org/10.1117/12.2661223
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Abstract

There has been strong interest in layered materials also known as 2D- materials since several decades for laser development, electro-optic and electronic devices. Although layered structures provide unique properties, but due to the presence of the Vander Waal bonding in certain crystallographic direction, and in many cases asymmetric forces, the growth of single crystals has been great problem. We have been working on ternary and quaternary oxides for variety of applications. There are some reports on bio-medical sensing since biomolecules can stick on the layers. We observed that chalcogenides are extremely low absorption coefficient and have very wide transparency range. In some cases, these have been explored for THZ sensors also. We will summarize example of thallium, gallium and mercury based selenides and present some recent observations. In addition to optical properties, these materials show excellent dielectric and ferroelectric properties and hence have great promise for se

Conference Presentation

Citation Download Citation

Ganga Dhar Singh and Kamdeo Mandal "Chalcogenide 2D materials for dielectric and ferroelectric applications: low absorption and wide transparency materials for optical and RF sensors (Conference Presentation)", Proc. SPIE PC12548, Smart Biomedical and Physiological Sensor Technology XX, PC1254805 (14 June 2023); https://doi.org/10.1117/12.2661223

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