FUNLAYERS Scientific Talk by Assoc. Prof. Talip Serkan Kasırga
Optics, electronics, and phase transitions of atomically thin materials via neighborhood engineering
On 17 December, FUNLAYERS will have the pleasure of hosting a new Scientific Talk at the International Iberian Nanotechnology Laboratory - INL, delivered by Assoc. Prof. Talip Serkan Kasırga is a principal investigator at Bilkent National Nanotechnology Research Center (UNAM), .
Title
Optics, electronics, and phase transitions of atomically thin materials via neighborhood engineering
Abstract
Unlike three-dimensional materials, screening of the interaction across quasiparticles in atomically thin materials can significantly alter their electronic and phononic properties. Earlier studies have demonstrated that dielectric screening can modify material parameters, including electronic mobility, conductivity, Raman modes, Seebeck coefficient, and photoluminescence, in semiconducting two-dimensional (2D) materials. In this talk, I will discuss our efforts on finding novel two-dimensional materials with phase transitions via interlayer space modification and how screening modification via substrate engineering can be used in conjunction with scanning photocurrent microscopy to investigate the fundamental properties of 2D materials, such as photoresponse mechanisms. Moreover, I will illustrate how metals can be used to achieve screening, despite the odds, at the ultimate proximity to control the excitonic light emission from semiconducting 2D materials. Ultimately, I will attempt to demonstrate how screening effects can be leveraged to enhance various electronic and optical properties of two-dimensional materials.
About the Speaker
Assoc. Prof. Talip Serkan Kasırga is a principal investigator at Bilkent National Nanotechnology Research Center (UNAM) and a part-time member of the METU Department of Physics. He received his bachelor’s degree in physics from Bilkent University in 2009 and his Ph.D. from the University of Washington, Department of Physics in 2013. During his Ph.D., he conducted experimental research on metal-insulator transitions in correlated solid-state systems and two-dimensional materials. In 2014, he moved to the UNAM and the Institute of Materials Science and Nanotechnology at Bilkent University in Turkiye to establish his research program. His research focuses on synthesizing novel two-dimensional materials, understanding phase transitions arising from strong quasi-particle correlations, the electrical response of two-dimensional materials when excited with light, and the modulation of this photoresponse via mechanical, electrostatic, or substrate engineering approaches. His work has appeared in prestigious journals such as Nature, Nature Nanotechnology, Nano Letters, etc., and received various awards in Turkey for his contributions to the field. He served as the associate director of the Bilkent National Nanotechnology Research Center, one of the leading infrastructures in Turkiye, from 2015 to 2024.
We look forward to an interesting talk!
