[1] Bandyopadhyay has authored over 400 research publications[2] on a wide range of topics including spintronics, straintronics, nanoelectronics and related aspects of nanotechnology.

He is also the author of three textbooks entitled Physics of Nanostructured Solid State Devices, Introduction to Spintronics, and Problem Solving in Quantum Mechanics: From Basics to Real World Applications for Materials Scientists, Applied Physicists and Device Engineers.

He is also the founding Chair of the Institute of Electrical and Electronics Engineers (IEEE) Technical Committee on Spintronics (Nanotechnology Council), and past-chair of the Technical Committee on Compound Semiconductor Devices and Circuits (Electron Device Society).

[8][9] Bandyopadhyay's most recent work has involved switching nanomagnets with electrically generated strain to produce energy-efficient digital information processing hardware.

[12] He and his collaborators also conducted a study in 2021 to demonstrate resonant amplification of spin waves in a periodic two-dimensional interacting array of multiferroic nanomagnets which would have applications in magnonic devices.