Nano Materials and Devices Laboratory
(NANOMADE-LAB)
Centre for Nanotechnology, IIT Roorkee
Ph.D. Positions Available for those who have Valid CSIR-NET/GATE
Welcome to NANOMADE
Welcome to the Nano Materials and Devices Group (NANOMADE) webpage of the Centre for Nanotechnology at the Indian Institute of Technology, Roorkee (IITR). We invite you to peruse our website and reach out to us if you are interested in a specific research topic. As a group, we are involved in the research of fundamental aspects of two-dimensional (2D) materials from growth to applications. We dedicate our research to exploring novel 2D materials, perovskites, and other nanomaterials in emerging fields like transistors, photodetectors, solar cells, random lasing, biosensors, flexible and transparent electronics, and other optoelectronic-based applications. We are committed to contributing to the understanding of this growing, diverse, and exciting field of quantum materials. We want to be a reference for the coming generations interested in the fundamental properties of quantum materials and their diverse applications. We also want to inspire young minds to see science as a route to uncovering nature secrets as well as a driving force to improve human life.
Recent Publications
Research Outlines
-
Development and Single Crystal Growth of Novel 2D Materials.
-
van der Waals stacking of 2D materials for p-n junction Devices.
-
Advanced processing of 2D materials for technological applications includes Transistors, Photodetectors, Photovolatics, and Sensors .
-
Flexible, lightweight, and foldable electronics, with 2D-based materials, for energy and environmental applications.
-
Cost-effective and stable 2D Devices.
Research Topics & Interests
Recent News
1. Two-Dimensional and Layered Materials.
2. Perovskites.
3. van der Waals Stacking of 2D Materials for p-n Junction Devices.
4. Single Crystal Growth.
5. Nanoscale Devices.
6. Optoelectronics (Transistors, Photodetectors, Solar Cells & LEDs).
7. Flexible, Lightweight, and Foldable Electronics
8. Random Lasing.
9. Bio-Sensors.
Notice Board
Periodic Table by R. Sagithya Nilan
Group Meeting
Calendar
Sep 2026: A co-authored paper published in Applied Physics Letters on the title "Metal-to-semiconductor transition and enhanced photoconductivity in PtSe₂ nanoflakes"
Sep 2026: Our project, GREEN-2D, under the Indo-Taiwan Collaborative Research Programme 2025, has been successfully awarded. I thank the Indian National Academy of Engineering (INAE), the Department of Science & Technology, Government of India (DST), and the National Science and Technology Council, Taiwan, for supporting and funding this Indo-Taiwan collaborative research project.
July 2026: Mohit Tiwari joined as a Ph.D. student in NANOMADE. We're happy to have you on the team.
June 2026: Dr. Rajesh is visiting the Institute of Physics, Academia Sinica, Taiwan, for collaborative work.
May 2026: Dr. Rajesh was awarded a "Besh Researcher Award" under the Engineering Faculty Awards 2026 by AMET University, Chennai.
May 2026: Congrats Krushna Rane for successfully completing her M.Tech Dissertation at NanoMade.
May 2026: Congrats, Pradeep Kumar, for his Best Oral Presentation at Nanotechnology Day-2026, organized by the Centre for Nanotechnology, IIT Roorkee.
May 2026: Saurav joined as an M.Tech. student in NANOMADE. We're happy to have you on the team.
1. P. Selvarasu, H. K. Bangolla, R. Sankar, R. K. Ulaganathan,
K. Raju, Y.-C. Lin, K.-Y. Lee, and R.-S.Chen, "Metal-to-semiconductor transition and enhanced photoconductivity in PtSe₂ nanoflakes" Applied Physics Letter, 2026 (IF-3.8)
2. H. K. Bangolla, C.-Y. Chen, C.-M. Cheng, K.-Y. Lee, L.-C. Chao, R. K. Ulaganathan, R. Sankar, A. Ghosh, R.-S. Chen, "Spatially Separated Bipolar Transport and Surface Electron Accumulation in Tungsten Diselenide Nanostructures" Nanoscale, 2026 (IF-5.1)
3. P. V. Pham, S. C. Lims, A. Kumar, R. K. Ulaganathan, R. I. Stantchev, R. Sankar, "Engineering high-performance IR photodetectors: From material design to multifunctional applications" Chemical Engineering Journal, 2025, 167554. (IF-13.2)
Representative Publications
1. R. K. Ulaganathan, et.al. “High-Performance Photodetector and Angular-Dependent Random Lasing from Long- Chain Organic Diammonium Sandwiched 2D Hybrid Perovskite Non-linear Optical Single Crystal” Advanced Functional Materials, 2023, 2214078. (IF-19)
2. G. Ghimire, R. K. Ulaganathan, et.al. “Quasi 1D MoS2 Nanoribbons with Enhanced Edge Nonlinear Response and Photoresponsivity” Advanced Materials, 2023, 2302469. (IF-26.8)
3. R. K. Ulaganathan*, et.al. "Stable Formamidinium Based Centimeter Long Two-Dimensional (2D) Lead Halide Perovskite Single Crystal for Long-Live Optoelectronic Application" Advanced Functional Materials, 2022, 32, 2112277. (IF-19) (* Corresponding Authors)
4. C. R. P. Inbaraj, R. J. Mathew, R. K. Ulaganathan, et.al. "A Bi-anti-ambipolar Field Effect Transistor" ACS Nano, 2021, 15, 8686-8693. (IF-16)
5. R. K. Ulaganathan et.al. "High‐performance flexible broadband photodetectors based on 2D hafnium selenosulfide nanosheets" Advanced Electronic Material, 2020, 6, 1900794 (IF-5.3)
6. P. Perumal, R. K. Ulaganathan, et. al. "Ultra-thin Layered Ternary Single Crystals [Sn(SxSe1-x)2] with Bandgap Engineering for High-performance Phototransistors on Versatile Substrates" Advanced Functional Material, 2016, 26, 3630-3638. (IF-19)
7. S. R. Tamalampudi, Y. Y. Lu, R. K. Ulaganathan,et.al. "High Performance and Bendable Few-Layered InSe Photodetectors with Broad Spectral Response" Nano Letters, 2014, 14, 2800-2806. (IF-9.1)