News and Updates

Congratulations to Rajarapu Ramesh for receiving the "Institute Research(IR)" Award.


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Good News: Installation of Electron Beam Lithography RAITH Pioneer 2 is successfully completed. It is procured under Centrally Funded Instrument scheme of IITM.


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Congratulations to Dr. Prahalad and team for the Springer Nature Best Poster award in ICFM2024


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Congratulations to Bubunu and team for APL paper and for being selected as a featured article by APL editorial team.


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Congratulations to Asmita and team for winning "Best Presentation Award in E-MRS", 2023 held in France. Asmita is working in the area of Neuromorphic computing.


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Congratulations to Ramesh and team for "Patent grant on phase specific growth of 3R-phase sword like MoS2".


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"Exciting news! Our team has achieved the coveted IoE research center designation. A huge accomplishment, well done team!"

Congratulations to Ramesh Rajarapu and Prahallad for ACS NANO Paper

Click here to view the paper


We are looking for Postdoctoral Researchers to work with us.
Applications from both national and international researchers are welcome.

Desirable expertise: Nanofabrication, Growth of 2D materials, Opto-electronic device characterizations.


We are also looking for International Faculty at the entry-level

Details can be found here: Click Here


Finland-India Workshop on "Correlations in Topological Quantum Matter", 6th - 10th September, 2022. Lammi, Finland

Website Link: Click Here

Poster: Click Here


4th Webinar on 2D Materials

2D Materials research group under the prospective Center of Excellence on "2D Materials research and Innovation" cordially invites you for the lecture by Dr. Abhishek Misra, Dr. Bhaswar Chakrabarti, Dr. Pramoda Kumar Nayak, Dr. K. Lakshmi Ganapathi, Dr. Gopinadhan Kalon, Prof. Kasi Viswananthan, Prof. Somnath C. Roy, IIT Madras.

Speaker: Prof. Dr. Kwanpyo Kim

Home page of Prof. Dr. Kwanpyo Kim: https://sites.google.com/view/enpl-yonsei/home

Title of the talk: Oriented atomic and molecular assembly on two-dimensional crystals for hybrid van der Waals heterostructures.

Date & Time: 19th January, 2022 (Wednesday) at 10.30 AM (IST).

Google Meet Link: meet.google.com/jbf-otvz-nyw​

Biography of the Speaker:

Dr. Kwanpyo Kim is an associate professor at the Department of Physics, Yonsei University, Korea. He is also an associate faculty at the Center for Nanomedicine, Institute for Basic Science. He finished his undergraduate from Seoul National University, Korea in 2006 and completed his Ph.D. in Physics at the University of California, Berkeley in 2012. He worked as a postdoctoral research fellow at Stanford University from 2012 to 2014. He also worked in the Department of Physics of Ulsan National Institute of Science and Technology (UNIST), Korea as an assistant professor from 2014 to 2018. His research is focused on atomic-scale characterizations, manipulation of various 2D materials, and their electronic applications. He has published more than 75 refereed articles.

Affiliation of the Speaker:

Department of Physics, Yonsei University, Seoul, KOREA.

Abstract:

The atomic and molecular assembly processes on the surface of two-dimensional (2D) layered crystals have gained significant research interest for fabrication of well-ordered nanostructures and vertical heterostructures based on 2D crystals. The structure and quality at the 2D heterointerfaces have great influence on the properties and performance of heterostructures. Therefore, the direct observation of the interfacial structure of 2D heterostructure can provide insight for understanding the fundamental aspects of the system and can also lead to a better design of a new 2D heterostructure. In this seminar, I will present various oriented self-assembly phenomena on 2D crystals. Advanced transmission electron microscopy (TEM) techniques are utilized to elucidate the atomic-scale structure of assemblies and their relative epitaxial relations with respect to 2D substrates. For example, one-dimensional metal-cyanide atomic chains exhibit universal oriented van der Waals epitaxy on various 2D crystals. I will also discuss the unidirectional assembly phenomena on various distorted 2D crystals, namely black phosphorus (BP) and distorted transition metal dichalcogenides (TMDCs). These atomically puckered 2D crystals can induce the unidirectional assembly along the directions of the crystal distortion. Finally, various electrical and optical properties of these hybrid heterostructures will be discussed.

Please register at - IRIS Webinar Series | Linktree: https://linktr.ee/IITM_IoE

You can also catch the YouTube LIVE stream at: https://www.youtube.com/channel/UC1mKE0SFJXxi4eotYoWrP6Q/playlists


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3rd Webinar on 2D Materials

2D Materials research group under the prospective Center of Excellence on "2D Materials research and Innovation" cordially invites you for the lecture by Dr. Abhishek Misra, Dr. Bhaswar Chakrabarti, Dr. Pramoda Kumar Nayak, Dr. K. Lakshmi Ganapathi, Dr. Gopinadhan Kalon, Prof. Kasi Viswananthan, Prof. Somnath C. Roy, IIT Madras.

Speaker: Prof. Dr. Jae Hyun Lee

Home page of Prof. Lee: https://www.ajou.ac.kr/en/research/news.do?mode=view&articleNo=105140

Title of the talk: Toward Scalable Production of 2-Dimensional Materials

Date & Time: 25th November, 2021 (Thursday) at 11.00 AM (IST).

Zoom Link: meet.google.com/prz-dyzw-mjd

Biography of the Speaker:

Dr. Jae-Hyun Lee is an Associate Professor at the Department of Materials Science & Engineering and Department of Energy Systems Research, Ajou University. He received bachelor’s degree in Materials Science and Engineering (2009) and a Ph. D. degree in Nano-Engineering (2014) from Sungkyunkwan University. Prior to joining Ajou University, he was a Postdoctoral Fello w at Sungkyunkwan University (2014-2017) and a Visiting Researcher at the National Graphene Institute in University of Manchester (2015-2017). Currently, his scientific interests focus on the controllable manufacturing of two-dimensional materials and heterostructures.

Affiliation of the Speaker:

Department of Materials Science & Engineering & Department of Energy Systems Research, Ajou University, South Korea.

Abstract:

Here, I am going to introduce our strategies to produce 2DMs via top-down and bottom-up approaches. At first, I will present a scalable growth of single-crystal graphene (SCG) on through "transplanting” uniaxially aligned graphene “seedlings" on the larger-area catalytic growth substrate. By inducing homo-epitaxial growth of graphene from the edges of the seed arrays without additional nucleation, we achieved the SCG with an area four times larger than the mother graphene seed substrate. And then, I will introduce atomic spalling of the van der Waals crystals that achieve large area 2DMs (graphene, MoS2, MoSe2, and WSe2) with a controlled number of layers. We found that being a layered crystal with a weak interlayer vdW force enables to control of the crack propagation depth at the scale corresponding to the single atomic thickness by adjusting interfacial toughness and the internal stress of the stressor film. The results show huge potential to produce layer-resolved high quality vdW materials, which can be developed into practical functional electronic and photonic devices.

Please register at - IRIS Webinar Series | Linktree: https://linktr.ee/IITM_IoE

You can also catch the YouTube LIVE stream at: https://www.youtube.com/channel/UC1mKE0SFJXxi4eotYoWrP6Q/playlists


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2nd Webinar on 2D Materials

2D Materials research group under the prospective Center of Excellence on "2D Materials research and Innovation" cordially invites you for the lecture by Dr. Abhishek Misra, Dr. Bhaswar Chakrabarti, Dr. Pramoda Kumar Nayak, Dr. K. Lakshmi Ganapathi, Dr. Gopinadhan Kalon, Prof. Kasi Viswananthan, Prof. Somnath C. Roy, IIT Madras.

Title of the talk: 2D Materials - Quantum Science and Technology Cluster

Date & Time: 16th September, 2021 (Thursday) at 5.45 PM (IST).

Zoom Link: https://us06web.zoom.us/webinar/register/WN_QKpMR7K7R2KtooGS0v07qA

Please register at - IRIS Webinar Series | Linktree: https://linktr.ee/IITM_IoE

You can also catch the YouTube LIVE stream at: https://www.youtube.com/channel/UC1mKE0SFJXxi4eotYoWrP6Q/playlists

Speakers:

Dr. Abhishek Misra, Dr. Bhaswar Chakrabarti, Dr. Pramoda Kumar Nayak, Dr. K. Lakshmi Ganapathi, Dr. Gopinadhan Kalon, Prof. Kasi Viswananthan, Prof. Somnath C. Roy, IIT Madras.

Moderator:

Prof. Artem Mishchenko, Professor of Condensed Matter Physics, Department of Physics and Astronomy, University of Manchester, UK.

Abstract:

Our core theme is to understand the fundamental physics ruling the atomically thin layered quantum materials and develop future energy efficient quantum electronics from such materials through collaborative research between academia and industry.

1st Webinar on 2D Materials

2D Materials research group under the prospective Center of Excellence on "2D Materials research and Innovation" cordially invites you for the inaugural lecture by Prof. Dr. Artem Mishchenko from University of Manchester, UK.

Title of the talk: Programmable van der Waals materials

Date & time: 6th September, 2021 (Monday) at 5.00 PM (IST).

Google Link: https://meet.google.com/kjf-ygdt-ogw

Abstract:

I will discuss our recent progress in the research of quantum properties of van der Waals materials. The advent of Van der Waals technology has allowed the development of many materials that did not exist before and has led to the observation of many exciting new physical phenomena in these materials due to the unique electronic, optical and mechanical properties of 2D atomic crystals. In particular, I will discuss how interlayer twist angle and stacking order can be used for deterministic control of the properties of van der Waals materials. Tuning twist angle (twistronics) became recently a huge field since electronic bands of 2D materials, their nontrivial topology, electron-electron interactions, and other structural and electronic degrees of freedom can be dramatically changed by a moiré pattern induced by twist angles between different layers. On the other hand, control of the stacking order provides an alternative approach to program quantum properties, and without the need of a moiré superlattice. Controlling stacking order in multilayer graphite films allowed us to discover the quantum Hall effect in hexagonal graphite and to find strong electronic correlations in rhombohedral graphite films.

Brief Bio:

Artem Mishchenko is a Professor of Condensed Matter Physics, he works at the Department of Physics and Astronomy at the University of Manchester. His research on 2D materials and van der Waals heterostructures covers a diverse range of topics including tunneling and capacitance spectroscopy in high magnetic fields, quantum Hall ferromagnets and other correlated electron systems, topological surface states, photovoltaics and light emission, 2D superconductivity, crystal growth, nanomechanics, high-temperature electronics, ion and matter transport in 2D systems, twistronics, and advanced van der Waals technology. The major contributions to these and other fields have been published in over 90 peer-refereed papers, including many in Science and Nature journals, leading to more than 20,000 citations and an h-index of 43. He has initiated several new research directions, such as tunneling and capacitance spectroscopy of van der Waals heterostructures; his works led to the development of new functional devices, including nanoscale tunneling transistors and photovoltaic sensors. As a recognition of his achievements, he has received several awards including EPSRC Early Career Fellowship, ERC Consolidator Grant, EMFL Prize 2018, and Blavatnik Award 2021. He is also named in 2018, 2019, and 2020 lists of Highly Cited Researchers from Clarivate Analytics.

Home page of Prof. Artem: https://www.artem-lab.com/home


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