M. Sc. (Physics)

Semester I - General practical laboratory

Semester II - Condensed matter Physics Theory and Condensed matter physics/Electricity general practical laboratory

Semester III - Advance Condensed matter physics - I practical laboratory

Semester IV - Advance Condensed Matter Physics - II and Project dissertation

Pre-Ph. D. course work

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

2. Taking some classes on Paper V (Ethics of Research) and paper V (Research publication ethics)

 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

5. Silicon nano/micro-structures, Silicon nanowire

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 (10)

No.   Name            (Currently placed at)

1. Dr. Jolly Bhadra ( Research Assistant in Centre of Advanced Materials                                       (CAM)Qatar University)

2. Dr. Utpala Baishya (Asstt. Professor in Sualkuchi college),

3. Dr. Sulochana Deb (Assistant Prof. Physics, GU),

4. Dr. Uday S. Senapati (Asstt. Prof. Handique girls college, Guwahati),

5. Dr. Shyamal K. Dey (Teacher (PGT), Faculty Higher Sec. school, Guwahati),

6. Dr. Partha P. D. Sharma (Senior Scientific Officer, Forensic Laboratory, Kahilipara, Guwahati),

7. Dr. Bappaditya Pal (PDF Uppsala University Sweden),

8. Dr. Kabita Barua (Teacher at Polytechnique College, Nalbari)

9. Dr. Mintu Das (CSIR Research Associate in CMP laboratory, Department of Physics, Gauhati University)

10. Dr. Mausumi Das (Assistant Professor, Sipajhar College, Assam)

11. Mr. Samarjit Sarmah (Assistant Professor, GLC college. Barpeta)

Other members in the group

1. Mr. Samarjit Sarmah (Thesis submitted) 

2. Mr. Ali Akbar (Final Registration over)

3. Mr. Pranjal Nath (Final Registration over)

4. Ms. Jonmoni Rabha (UGC NET-JRF)

5. Mr. Saponjit Borah (Provisionally registered)

Citations – 930, h-index – 16, i10-index – 28 (Since 2016 - Citations – 670, h-index – 14, i10-index – 22)

List of Publications in journals

1. Ageing mediated silicon suboxide interlayer growth in porous silicon: p-Si heterostructured metal-semiconductor-metal device for enhanced UV-visible photodetection S. Sarmah, M. Das, D. Sarkar, Thin Solid Films, 738, 138962-138972 2021 (IF - 2.183).

2. Polyaniline (PANI)-passivated porous silicon (PS) for ammonia detection, P Nath, M Das and D Sarkar, Indian J Phys (October 2021) 95(10):2015–2021 (Impact factor - 1.95)

3. Enhanced UV-visible photo responsivity of annealed Al/porous silicon (PS): p-Si Schottky device, S. Sarmah, M. Das and D. Sarkar, Materials Letters (Elsevier), 297, 129972, 2021 (IF -  3.204).

4.   UV–Visible photo sensing properties of CdS-porous silicon (PS): P-Si and ZnO-PS: p-Si heterostructures metal-semiconductor-metal (MSM) based devices, S. Sarmah ⇑ , M. Das, D. Sarkar, Materials Today (Elsevier): Proceedings xxx (xxxx) xxx, 2020 (https://doi.org/10.1016/j.matpr.2020.04.773)(ISSN-2214-7853).

5.   Distinct and enhanced ultraviolet to visible ZnS-porous silicon (PS):p-Si hybrid metal-semiconductor-metal (MSM) photodetector, M. Das, S. Sarmah, D. Sarkar, Materials Today (Elsevier): Proceedings xxx (xxxx) xxx, 2020 (https://doi.org/10.1016/j.matpr.2020.04.779) (ISSN-2214-7853).

6.   Polyvinyl alcohol–silver fractal structured nanodendrites: photochemical synthesis, S. Deb and D. Sarkar, Polymer Bulletin (Springer), 1-11, 2020 (https://doi.org/10.1007/s00289-019-03097-z) (IF – 1.858) (ISSN-0170-0839 (print) 1436-2449 (web)).

7.   Room temperature ammonia sensing by CdS nanoparticle decorated polyaniline (PANI) nanorods, Ali Akbar, Mausumi Das and D. Sarkar, Sensors and Actuators A (Elsevier), 310, 112071 (11 pages), 2020 (IF – 2.739, citations - 11) (ISSN-0924-4247).

8.   Distinct band UV-Visible photosensing property of ZnO-Porous Silicon (PS):p-Si hybrid MSM heterostructure, M. Das, S. Sarmah, D. Barman, B. K. Sarma and D. Sarkar, Materials Science in Semiconductor Processing (Elsevier), 118, 105188 (10 pages), 2020 (IF – 2.722) (ISSN – 1369-8001).

9.   Photosensing property of nanostructured CdS-porous silicon (PS):p-Si based MSM hetero-structure, M. Das, S. Sarmah and D. Sarkar, J. Mater Sci.: Mater. Electron. (Springer) 30, 11239-11249, 2019 (IF-2.195, Cited by 3) (ISSN – 0957-4522).

10.   Silver ion concentration dependent properties of silver nanostructured nanocomposite films, Sulochana Deb and Deepali Sarkar, J. Optoelectronics and Advanced Materials (Scimago Journal & Country Rank), 21, No.3-4, pp. 275-280 (2019) (IF – 0.588, Cited by 1).

11.   Investigation on dielectric properties of polyaniline (PANI) sulphonic acid (SA) composites prepared by interfacial polymerization, Mausumi Das, Ali Akbar, D. Sarkar, Synthetic Metals (Elsevier), 249, 69-80, 2019 (IF – 2.87, Cited by 11).

12.           Effect of annealing temperature on optical properties of silver-PVA nanocomposite, Sulochana Deb and Deepali Sarkar, Optik (Elsevier), 157, 1115-1121, 2018 (IF – 1.914, Cited by 3).

13.           Morphological, structural and electrical properties of polypyrrole nano coated bamboo cellulose fibre, Patha P. D. Sharma and D. Sarkar, Indian J. Fibre Text. Res., (NISCAIR) 43 (1), 66-73, 2018 (IF – 0.511).

14.           Development of room temperature ethanol sensor from polypyrrole (PPy) embedded in polyvinyl alcohol (PVA) matrix, Mausumi Das and D. Sarkar, Polym. Bull. (Springer), 75 (7), 3109-3125, 2018 (IF – 1.858, Cited by 23).

15.           One-pot synthesis of zinc oxide-polyaniline nanocomposite for fabrication of efficient room temperature ammonia gas sensor, Mausumi Das and D. Sarkar, Ceramic International (Elsevier), 43 (14) (October), 11123-11131, 2017 (IF – 2.986, Cited by 62).

16.           UV-Visible optical photo-detection from porous silicon (PS) MSM device, M. Das, S. Sarmah, D. Sarkar, Superlattice Microst. (Elsevier), 101 (January), 228-235, 2017 (IF – 2.123, Cited by 9).

17.           Morphological and optical properties of n-type porous silicon: Effect of etching current density, M. Das and D. Sarkar, Bull. Mater. Sci. (Springer), 39 (7) (December), 1671-1676, 2016 (IF – 0.899, Cited by 10).

18.           Effect of oxidizing agent on ammonia sensing of DBSA doped polyaniline nanocomposite thin film, Mausumi Das and D. Sarkar, J. Mater Sci.: Mater Electron (Springer), 27 (April), 4109-4119, 2016 (IF – 2.195, Cited by 26).                                                                                    

19.           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. (Springer), 90 (1-January), 29-34, 2016 (IF – 0.988, Cited by 9).

20.           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. (Elsevier), 90 (January), 77-86, 2016 (IF – 2.385, Cited by 13).