Sukanta De

Assistant Professor

B. Sc (Hons.) in Physics (Ramakrishna Mission Residential College, Narendrapur, University of Calcutta, 1999).

M. Sc in Physics (University of Calcutta, 2001).

Ph. D in Science (IACS, Kolkata & Jadavpur University, 2006). (Thesis title : “Electrical and Dielectric Properties of Conducting Polymer nanocomposites”)

Post Doctoral Fellow at Trinity College Dublin, Ireland, 2006 - 2012.

     I obtained B.Sc. degree (1999) and M.Sc. degree (2001) in Physics from Calcutta University.   I did my doctoral work at Indian Association for the Cultivation of Science, Calcutta and obtained PhD degree (2006) from Jadavpur University.  Then I have Joined Prof. J. N. Coleman’s group at Trinity College Dublin as postdoctoral fellow.  During my postdoctoral research I worked in a project collaboration with Hewlett-Packard, on the development of flexible, transparent and conducting electrode materials to in optoelectronic devices.  After postdoctoral work he joined Presidency University on October 2012 as Ramanujan Fellow.  

      My current research is focused on graphene and carbon nanotube based supercapacitor as energy storage device with high specific capacitance and energy density. At present my group is preparing different kind of hybrid materials of transition metal oxides in their zero or two dimensional structure with graphene or carbon nanotubes for electrode materials of supercapacitor.  His group is also working to develop ultrathin flexible and transparent supercapacitor for future application in transparent flexible devices.

         My group also producing graphene analogues (ie, 2-D nano materials) of layered inorganic materials by liquid phase exfoliation and soft chemical methods. These 2-D materials are important for both fundamental materials science and applications. Layered inorganic materials, such as Transition metal dichalcogenides (TMC’s), and transition metal oxides (TMO’s) are of great interest because they occur in different types and electrically they cover a wide spectrum of properties. These exfoliation leads to materials with high surface area and hence enhanced surface activity, leading to important applications, for example electrodes in supercapacitor and batteries, flexible photo detector.  His aim is to study electrical and optical properties of exfoliated layered materials for use in different types of optoelectronic devices.

1. Condensed Matter Physics (PG)

2. Physics of Nanostructure Materials (PG)

3. Physical Optics (UG)

4. Solid State Physics (UG)

5. Electricity and Magnetism (UG)

6. Major Experiments (Lab.) (UG)

List of Publications

Selected Publications:

1.  Hernandez, Y.,  Nicolosi, V., Lotya, M.,  Blighe, F. M.,  Sun, Z.,  .De, S, et.al. (2008). “High-yield production of graphene by liquid-phase exfoliation of graphite” , Nature Nanotechnology, 3, 563.

2.  De, S., Lyons, P. E.,  Sorel, S., et. al. (2009). “Transparent, Flexible, and Highly Conductive Thin Films Based on Polymer?Nanotube Composites”, ACS Nano, 3 , 714-720.

3.  De, S.,  Higgins, T. M., Lyons, P. E.,et. al. (2009). “Silver nanowire networks as flexible,   transparent, conducting films: Extremely high DC to optical conductivity ratios”,  ACS Nano 3, 1767-1774.

4.  Nirmalraj, P. N.,  Lyons, P. E.,  De, S.,  Coleman, J N.,  Boland, J J., (2009). “Connectivity in single walled carbon nanotube networks”  Nano Letters 9, 3890 – 3895.

5. De, S., King, P. J., Lotya, M., et.al. (2010). “Flexible, transparent, conducting films of randomly stacked graphene from surfactant- stabilised, oxide - free graphene dispersions”,  Small  6,  458-464.

6. De, S.,  and  Coleman, J. N., (2010). “Are There Fundamental Limitations on the Sheet Resistance and Transmittance of Thin Graphene Films?”, ACS Nano  4, 2713 – 2720.

7. De, S.,  King, P. J., Khan, U.,   Coleman, J. N., (2010). “Size effects and the problem with percolation in nano-structured transparent conductors”, ACS Nano  4, 7064 –7072.

8. Coleman, J. N., Lotya, M.,  De, S.,  et. al. (2011). “Two-dimensional nano-sheets produced by liquid exfoliation of layered materials”, Science  331, 568-571.

9. De, S.,  Bolaand, C. S.,  King, P. J., et. al. (2011). “Transparent Conducting films from NbSe3 Nanowires”. Nanotechnology  22 , 285202.

10. De, S.,  and  Coleman, J. N., (2011). “The effects of percolation in nanostructured transparent conductors” MRS Bulletin 36 , 774. (Invited review article.)