Kausik Majumdar’s Group
Quantum Electronics Laboratory
Indian Institute of Science
Quantum Electronics Laboratory IISc
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Welcome to Kausik Majumdar’s research group at the Department of Electrical Communication Engineering at Indian Institute of Science. We use a combination of theoretical and experimental techniques to investigate the electrical and optoelectronic properties of low dimensional materials and their nanostructures. We are also equally interested in applying these fascinating properties to develop novel devices, encompassing the entire spectrum of device design and simulation, device fabrication using state of the art semiconductor fabrication techniques, and device characterization using various electrical, optical and spectroscopic techniques.

News & Events

August 2023
Our work on ultra-narrow linewidth excitonic emission from monolayer semiconductor is accepted in Physical Review B.

July 2023
Our work on dynamic tuning of moiré potential in heterobilayer is accepted in Nature Communications.

Our work on IISc web.

Our recent work on fully-coherent excitons in monolayer is picked up by Phys.org.

Medha wins the best PhD thesis award (Seshagiri Kaikini Medal for the year 2021-2022)!

June 2023
Our work on optical read-out of ~100% exciton valley coherenc e is accepted in Light: Science & Applications.

April 2023
A coverage of our research activities by IISc's newsletter KERNEL.

September 2022
Our work on 3-level multi-bridge channel MoS2 field effect transistor is accepted in IEEE Electron Device Letters.

Our work on CDW phase-switched 3-orders current jump is accepted in Advanced Electronic Materials.

Our research is picked up by Shaastra Magazine of IIT Madras.

August 2022
Nithin wins The Satish Dhawan Research Award for the year 2022!

July 2022
Hitesh receives the Alumni Medal for topping his M. Tech. batch!

Our work on electrically self-aligned, reconfigurable TFET and MOSFET appears in IEEE Transations on ELectron Devices.

June 2022
Press articles about our all-electrnic, "true" random number generator device.
Our work on intra-layer moire exciton and trion is accepted in ACS Nano.

May 2022
Our work on observation of nonlinear biexcitonic photocurrent is accepted in ACS Nano.

April 2022
Our work on the true random number generation with near ideal entropy appears in ACS Nano.

Krishna receives the best PhD thesis award (Seshagiri Kaikini Medal for the year 2020-2021)!

March 2022
Suman's writing has been selected for the AWSAR award from DST!

Our work on Auger induced trion-trion annihilation is accepted in Physical Review B (Letters).

November 2021
Our work on charged biexciton in monolayers appears in 2D Materials.

October 2021
Our work on negative diiferential photoconductance using non-radiative energy transfer appears in ACS Nano.

February 2021
Our work on anomalous quantum confined Stark effect in monolayer WS2 is accepted in Physical Review B.

January 2021
Our work on accurate extraction of Schottky barrier height and universality of Fermi level depinning in van der Waals contact is accepted in Advanced Functional Materials.

December 2020
Our demonstration of a tellurium nanowire based dual gated junctionless transistor with contact-barrier-free carrier injection is accepted in Advanced Functional Materials.

November 2020
Our work on linear Stark effect in bilayer WS2 appears in ACS Photonics.

October 2020
Our work on tunable Esaki diode using van der Waals heterojunction and its application in memory and oscillators appears in ACS Nano.

May 2020
We show gate and light tunable negative differential resistance using CDW phase change in TaS2/MoS2 junction in a paper in ACS Nano.

February 2020
Our work on ultra-fast chrged-exciton (trion) switch appears in Physical Review B (Rapid Communication).

Our work on energy transfer driven Raman enhancement appears in ACS Photonics.

Our invited paper on origin of selectively enhanced quantum emission from monolayers on metal appears in Special Issue on Materials for Quantum Technologies: Computing, Information, and Sensing of Journal of Applied Physics.