[6] Before completing her degree, she spent a summer as an intern in Laurens Molenkamp's laboratory at the Wurzburg University, Germany, conducting research in spintronics.

At UCSB, Sarkar trained in nanoelectronics under the mentorship of Kaustav Banerjee where she pioneered techniques to improve energy-efficiency in nanodevices and developed novel field effect transistor biosensors using molybdenum disulfide (MoS2).

[10] This device overcomes the fundamental thermal limitations in power of conventional transistors and achieves subthermionic subthreshold swing due to quantum mechanical tunneling based carrier transport.

[11] Sarkar developed a novel Field-effect transistor based biosensor using MoS2 which provides high sensitivity, 74-fold higher than graphene, but also ease of patternability and device fabrication as it has a 2D atomically layered structure.

[12] Moreover, Sarkar showed that steep turn-ON characteristics, obtained through novel technology such as band-to-band tunneling, can result in unprecedented performance improvement compared to that of conventional electrical biosensors, with around 4 orders of magnitude higher sensitivity and ten-fold lower detection time.

It showed for the first time that the high-frequency resistance of intercalation doped multi-layer graphene interconnects is lower than that of copper and carbon nanotubes (CNTs).

Sarkar and team, developed a novel tool called iterated direct expansion microscopy (idExM), which enables researchers optical access to nanoscale structures by expanding tissues.