The art of ultra-manipulable van der Waal materials and their heterostructures have been playing a pivotal role in new discoveries. Although various proof-of-concepts-based optoelectronic devices have been demonstrated, fabrication routes with the in-situ tuning of structural, optical, electronic, and magnetic properties have not yet been accomplished in any multi-component 2D system. Our research focuses on a combination of materials synthesis, heterostructuring, and in-situ optoelectronic device characterization to engineer the on-demand control of quantum properties in research areas pertaining to stretchable and flexible nanoelectronics, optoelectronics, valleytronics, spintronics, Quantum technology, and so on. We are exploring the CVD strategies to directly synthesize a wide range of 2D materials and their heterostructures in the form of lateral and vertical configurations. Emphasis is given to transition metal mono/di-chalcogenides, graphene, BN, perovskites, and their heterostructures. The critical parameters that need to be controlled for the preparation of optoelectronic quality 2D films are stoichiometry, thickness, scalability (> 1 cm2), crystallographic orientation, domain size, and surface roughness. We are tailoring their optical, electronic, and magnetic parameters through doping and alloying pathways. Site-specific modulation of charge carriers such as the electron, hole, exciton (trion and biexciton), and polaritons in the 2D host materials with desired properties necessitates a level of understanding for designing next-generation materials that will meet the requirements for attaining a sustainable society in the near future.
We welcome highly motivated Master, Doctoral and Post-Doctoral research scholars as well as undergards to join our lab.
-
One-pot growth of two-dimensional lateral heterostructures via sequential edge-epitaxy Sahoo P. K., Memaran S. , Xin Y. , Balicas L. , Gutiérrez H. R. By Nature 553 63-67 (2018)
-
Laser-induced chemical modification of monolayer Transition Metal Dichalcogenides Afanesh T., Sahoo P. K., Nobrega I. , Xin Y. , Gutierrez H. By Advanced Functional Materials 28 1802949- (2018)
-
Bilayer Lateral Heterostructures of Transition-Metal Dichalcogenides and Their Optoelectronic Response Sahoo P. K., Memaran S. , Nugera F. , Xin Y. , Marquez T. , Lu Z. , Zheng W. , Zhigadlo D. , Smirnov D. , Balicas L. , Gutierrez H. By ACS Nano 13 12372-12384 (2019)
-
Evidence of Rotational Fröhlich Coupling in Polaronic Trions Trushin M., Sarkar S. , Mathew S. , Goswami S. , Sahoo P. K., Wang Y. , Yang Y. , Li W. , Macmanus-driscoll J. L., Chhowalla M. , Adam S. , Venkatesan T. By Phys. Rev. Lett. 125 086803- (2020)
-
Spatially Resolved Persistent Photoconductivity in MoS2-WS2 Lateral Heterostructures Berweger S., Zhang H. , Sahoo P. K., Kupp B. , Blackburn J. , Miller E. , Wallis T. , Voronine D. V., Kabos P. , Nanayakkara S. U. By ACS Nano 14 14080-14090 (2020)
-
Bandgap Engineering in 2D Lateral Heterostructures of Transition Metal Dichalcogenides via Controlled Alloying Nugera F. A., Sahoo P. K., Xin Y. , Ambardar S. , Voronine D. , Kim U. , Han Y. , Gutierrez H. By Small 2106600 1-11 (2022)
-
Biexcitons in monolayer transition metal dichalcogenides tuned by magnetic fields: toward a pure biexciton liquid Stevens C. E., Paul J. , Cox T. , Sahoo P. K., Gutierrez H. , Turkowski V. , Semenov D. , Mcdill S. , Kapetanakis M. , Peakis I. , Hilton D. , Karaiskaj D. By Nature Communication 9 3720- (2018)
-
Nanowire Arrays as Cell Force Sensors to Investigate Adhesin-Enhanced Holdfast of Single Cell Bacteria and Biofilm Stability Sahoo P. K., Janissen R. , Monteiro M. , Cavalli A. , Murillo D. , Merfa M. , Cesar C. , Carvalho H. , De Souza A. , Bakkers E. , Cotta M. A. By Nano Letters 16 4656-4664 (2016)
-
InP Nanowire FET Biosensor with tailored Biofunctionalization: Ultrasensitive and Highly Selective Disease Biomarker Detection Janissen R., Sahoo P. K., Santos C. , Da Silva A. , Zuben A. , Costa A. , Celedon P. , Zanchin N. , Almeida D. , Oliveira D. , Cesar C. , De Souza A. , Cotta M. A. By Nano Letters 17 5938-5949 (2017)
-
Probing nano-heterogeneity and aging effects in lateral 2D heterostructures using tip-enhanced photoluminescence Sahoo P. K., Zong H. , Liu J. , Xue W. , Lai X. , Gutierrez H. , Voronine D. By Optical Materials Express 9 1620-1631 (2019)
Principal Investigator
- Controlled Growth of Band-Engineered Two-Dimensional Heterostructures and 2D Quantum devices
- Emergent Phases in 2D Quantum Materials and Heterostructures
- Emergent Phases in 2D Quantum Materials and Heterostructures
- Scalable Fabrication of Electronic Grade Two Dimensional Semiconductors and Heterostructures via water-assisted one-pot CVD Technique
Ph. D. Students
Baisali Kundu
Area of Research: 2D Heterostructures for Optoelectronics Applications
Biswajeet Nayak
Area of Research: Quantum Transport and Optoelectronic properties of 2D Heterostructures
Praveen Kumar
Area of Research: 2D materials and Heterostructures
Purbasha Ray
Area of Research: 2D Materials based Electronic Devices
Suman Kumar Chakraborty
Area of Research: Quantum Phase Engineering in 2D Heterostructures
Vidushi Chaudhary
Area of Research: Design and Fabrication of 2D Heterostructures towards Quantum Light Emission and Optoelectronic Devices
