Deepali Sarkar

Deepali Sarkar

Professor

MSc (IITKgp) PhD (IACS) Postdoctoral Fellow (CSIR RA, IACS)

Condensed Matter Physics

Department of Physics
Gauhati University, Guwahati, 781014
Email:- sarkardeepali@gauhati.ac.in

 Some broad topics of research

1. Sensing application of conducting polymer nanocomposites

2. Electrical and structural properties of metal, semicondutor nanostructures

3. Biosynthesis of semiconductor nanoparticles

4. Si MEMS heterostructures for photodetection

Projects

Completed two DST projects (One on processing conducting polymer, other on porous silicon based optical device) and one UGC project (In 2016)

Ph. D. awarded (09)

Dr. Jolly Bhadra (Qatar University), Dr. Utpala Baishya (Asstt. Professor in Sualkuchi college), Dr. Sulochana Deb (Assistant Prof. Physics, GU), Dr. Uday S. Senapati (Asstt. Prof. Handique girls college, Guwahati), Dr. Shyamal K. Dey (Teacher, Faculty Higher Sec. school), Dr. Partha P. D. Sharma (Asstt. Director, Forensic Science), Dr. Bappaditya Pal (PDF Sweden), Dr. Kabita Barua, Dr. Mintu Das (Awarded CSIR Research Associateship to work at CMPlab GU)

Other members in the group (05)

Ms Mausumi Das (to complete this year), Mr. S. Baglari, Mr. Samarjit Sarmah, Mr. Ali Akbar, Mr. Pranjal Nath

 M. Sc. (Physics)

Semester I - General practical laboratory

Semester II - Condensed matter physics - I, and General practical laboratory

Semester III - Condensed matter physics - II and Advance practical laboratory

Semester IV - Physics of Thin film and Project dissertation

Pre-Ph. D. course work

In-charge of Paper IV (Condensed matter physics) and teaching some parts of the course

1. Effect of annealing temperature on optical properties of silver-PVA nanocomposite, Sulochana Deb and Deepali Sarkar, Optik, 157, 1115-1121, 2018.

2. Morphological, structural and electrical properties of polypyrrole nano coated bamboo cellulose fibre, Patha P. D. Sharma and D. Sarkar, Indian J. Fibre Text. Res., 43 (1), 66-73, 2018.

3. Development of room temperature ethanol sensor from polypyrrole (PPy) embedded in polyvinyl alcohol (PVA) matrix, Mausumi Das and D. Sarkar, Polym. Bull., DOI 10.1007/s00289-017-2192-y

4. One-pot synthesis of zinc oxide-polyaniline nanocomposite for fabrication of efficient room temperature ammonia gas sensor, Mausumi Das and D. Sarkar, Ceramic International 43 (14) (October), 11123-11131, 2017. (IF – 2.986)

5. UV-Visible optical photo-detection from porous silicon (PS) MSM device, M. Das, S. Sarmah, D. Sarkar, Superlattice Microst. 101 (January), 228-235, 2017. (IF – 2.123)

6. Morphological and optical properties of n-type porous silicon: Effect of etching current density, M. Das and D. Sarkar, Bull. Mater. Sci., 39 (7) (December), 1671-1676, 2016. (IF – 0.899)

7. Effect of oxidizing agent on ammonia sensing of DBSA doped polyaniline nanocomposite thin film, Mausumi Das and D. Sarkar, J. Mater Sci.: Mater Electron, 27 (April), 4109-4119, 2016.

8. Junction characteristics of ITO/PANI-ZnS/Ag and ITO/PANI-CdS/Ag Schottky diodes: a comparative study, S. K. Dey, S. Baglary and D. Sarkar, Indian J. Phys. 90 (1-January), 29-34, 2016. (IF – 0.988)

9. Influence of etching current density on microstructural, optical and electrical properties of porous silicon (PS): n-Si heterostructure, M. Das, P. Nath and D. Sarkar, Superlattice Microst. 90 (January), 77-86, 2016.

10. Effect of polymerization time on structural and dielectric behaviour of cellulose/polypyrrole composite, Partha P. D. Sharma and D. Sarkar, J. Polym. Mater., 32 (4) (October), 491-502, 2015. (IF – 0.24)

11. Synthesis and characterization of biopolymer protected zinc sulphide nanoparticles, U. S. Senapati and D. Sarkar, Superlattice Microst. 85 (September), 722-733, 2015.

12. Structural, optical and magnetic properties of Ni doped ZnO nanoparticles: Correlation of magnetic moment with defect density, Bappaditya Pal, D. Sarkar, P. K. Giri, Appl. Surf. Sci., 356 (August), 804-811, 2015. (IF – 3.387)

13. Evolution of room temperature ferromagnetism with increasing 1D growth in Ni-doped ZnO nanostructures, Bappaditya Pal, Soumen Dhara, P. K. Giri and D. Sarkar, J. Alloys and Compounds, 647 (June), 558-565, 2015. (IF – 3.133)

14. Structural, spectral and electrical properties of green synthesized ZnS nanoparticles using Elaeocarpus floribundus leaf extract, U. S. Senapati and D. Sarkar, J. Mater Sci.: Mater Electron, 26 (8) (April), 5783-5791, 2015. (IF – 2.019)

15. Bile salt incorporated polypyrrole thin film for ethanol sensing, Partha P. D. Sharma and D. Sarkar, Indian J. Biochem. Biophys., 52, 203-208, 2015.

16. Structural, Optical, Thermal and Electrical properties of Fungus guided Biosynthesized Zinc Sulphide Nanoparticles, U. S. Senapati, D. K. Jha and D. Sarkar, Research Journal of Chemical Sciences, 5, 33-40, 2015.

17. Effect of Cd source concentration on CdS-Polyaniline (CdS-PANI) nanocomposite thin films, Shyamal Kr. Dey and Deepali Sarkar, Synthesis and reactivity inorganic, metal-organic and nano-metal chemistry (Taylor and Francis) 45, 1011-1017, 2015. (IF – 0.49)

18. Effect of Zn source concentration on structural, optical and electrical properties of zinc sulphide-polyaniline (ZnS-PANI) nanocomposite thin films, Shyamal Kr. Dey and D. Sarkar, J Mater Sci: Mater Electron 25(12): 5638-5645, 2014.

19. Room Temperature Ferromagnetism with High Magnetic Moment and Optical Properties of Co Doped ZnO Nanorods Synthesized by a Solvothermal Route, Bappaditya Pal, Soumen Dhara, P. K. Giri and D. Sarkar, J. Alloys and Compounds, 615, 378-385, 2014.

20. Negative photoconductivity in silver nanocubes prepared by simple photochemical method, S. Deb and D. Sarkar, J. Experimental Nanosci., 9 (4), 375-381, 2014.

21. Characterization of biosynthesized zinc sulphide nanoparticles using edible mushroom pleurotuss ostreatu, U S Senapati and D Sarkar, Indian J. Phys., 88 (6), 557-562, 2014.

22. Junction diode from nanoporous silicon, M. Das and D. Sarkar, International J. Pure and Appl. Sciences, 2 (1), 43-45, 2013.

23. Structural and optical properties of n-type porous silicon fabricated in dark, M. Das and D. Sarkar, Indian J. Pure and Appl. Phys., 51, 724-727, 2013.

24. Green synthesis and characterization of ZnS nanoparticles, U. S. Senapati, D. K. Jha and D. Sarkar, Res. J. Phys. Sci., 1 (7), 1-6, 2013. 25. Structural, optical and electrical properties of spherical shaped wurtzite ZnS nanoparticles dispersed in polyvinyl alcohol matrix, U. Baishya and D. Sarkar, Indian J. Phys., 87 (8), 763-766, 2013.