Dr. Pawan Kumar Tyagi

        Assistant Professor,

       Dept. of Applied Physics,

  Delhi Technological University,

     (Formerly Delhi College of Engg.)

Shahabad Daulatpur Bawana Road                     Delhi-110042

 

 

 

Education Background:

 

Ph.D (Condensed matter Physics): Department of Physics, Indian Institute of Technology, Mumbai (July 2006). “Synthesis of nickel and cobalt filled multi-walled carbon nanotubes and their detailed structure analysis”.

M.Sc (Condensed Matter Physics): Banaras Hindu University, Banaras, India (July 2000).

 

Professional Experience:

 

• DTU (Dept. of Applied Physics, Delhi Technological University, Delhi) ( July 2010-to till date)  as a Assistant Professor.

• Center of Nanoscience & Technology (Dept. of Applied Physics, Delhi Technological University, Delhi) ( July 2010-to till date) as Coordinator.

• IPCMS (Institut de Physique et Chimie des Matériaux de Strasbourg, France), (Oct. 2008- Nov. 2009: 1 Year), Post Doctoral Fellow.

• KU (Department of electrical engineering, Korea University, Seoul, South Korea) (Jan. 2008-Sept. 2008: 8 Months), Research Professor.

• Nozomi Technotron Pte. Ltd, (March 2006-Dec. 2007: 1 Year, 9 Months), Technical Manager. Role and responsibility: Liaising with contractors/ architects and customers. Design, handling & maintenance of CVD system and vacuum system. Assist to improve the quality of product.

• IIT Bombay (Indian Institute of Technology Bombay, Mumbai) (July 2001- April 2006): Teaching Assistant for undergraduate courses (B.Tech) & Post graduate curses (M.Sc)

 

List of ongoing/completed projects:

 

1. Synthesis of Structural Defects Free Single Layer Graphene for Applications in Nanoelectronic Devices, SR/FTP/PS-055/2012, DST- Fast Track, : Ongoing (2013-16)       

2. Ion Implantation in Nanocrystalline, Ultrananocrystalline diamond film and Carbon nanotubes, Funded by INTER-UNIVERSITY ACCELERATOR CENTRE, Accelerator Based Research Centre of UGC: Ongoing (2013-16)

3. Graphene-Based Flexible, Transparent Electrodes For Organic Light Emitting diodes and Photovoltaics, under Indo-Portuguese Programme of Cooperation in Science and Technology : Ongoing (2013-16) 

4. Fabrication of Biosensors for Cancer Detection Using Single Layer Graphene, Dr. Zainab Naqvi ( PI), Dr. Pawan Kumar Tyagi (Mentor), DBT under the Bio-CARe programme for women scientists (2013). Approved, 2014.

5. Production of single crystal diamond for jewellery, sponsored by C6 TECHNOLOGIES, Surat-394230, Gujarat, Completed (2010-11).

 

 List of Publications:

 

1. Supercooling transition in phase separated manganite thin films: an electrical transport study, Sandeep Singh, Pawan Kumar, P. K. Siwach, S. T. Lakshmikumar, Pawan Kumar Tyagi and H. K. Singh , Applied Physics Letter, 104, 212403 (2014).

2. Technological advances in a-Si: H/c-Si Heterojunction solar cells, K Patel, P K Tyagi International Journal of Renewable Energy Research (IJRER) 4 (2), 528-538 (2014).

3. New Approaches for the Performance Improvement of Heterojunction and HIT Solar Cells, K. Patel S. Kumar, O.S. Panwar, C. Sreekumar, C.M.S. Rauthan, P. Tyagi, Proceeding, 27th European Photovoltaic Solar Energy Conference and Exhibition, 2648-2652 ( 2012)

4. The interaction between carbon nanotubes and copper or gold crystals, Pawan K. Tyagi, Florian Banhart, J. Nanosci. Nanotechnology,11, 1-7, 2011.

5. Parameter window of diamond growth on GaN films by microwave plasma chemical vapor deposition, Dipti Ranjan Mohapatra, PadmnabhRai, Abha Misra, Pawan K. Tyagi, Brajesh S. Yadav, D.S. Misra, Diamond and Related Materials,17,177 5( 2008).

6. Axial buckling and compressive behavior of nickel-encapsulated multiwalled carbon nanotubes, Abha Misra, Pawan K. Tyagi, Padmnabh   Rai, Dipti Ranjan Mahopatra, Jay Ghatak, P. V. Satyam, D. K. Avasthi and D. S. Misra Phys. Rev. B, 76, 014108 (2007).

7. High-pressure behavior of Ni-filled and Fe-filled multiwalled carbon nanotubes H. K. Poswal, S. Karmakar, Pawan K. Tyagi, D. S. Misra, E.Busetto, Surinder M. Sharma, A. K. Sood, Physica Status Solidi (b) 244 , No. 10 (2007).

8. FTIR spectroscopy of multiwalled carbon nanotubes: A simple approach to study the nitrogen doping, Abha Misra, Pawan K. Tyagi, Padmnabh Rai and D. S. Misra, J. Nanosci. Nanotechnology,7,1820 (2007).

9. Pressure-induced phase transitions in cobalt-filled multiwalled carbon nanotubes, S. Karmakar, Pawan K. Tyagi, D. S. Misra,  and Surinder M. Sharma, Phys. Rev. B 73, 184119 (2006).

10. Hexagonal diamond synthesis on h-GaN strained films, Abha Misra, Pawan K. Tyagi, Brajesh S. Yadav, Vivek Pancholi, P.Rai,  I. D. Samajdar, D. S. Misra,  Applied Physics Letters, 89, 071911(2006).

11. Re-orientation of the crystalline planes in confined single crystal nickel nanorods Induced by heavy ion-irradiation, Abha Misra, Pawan K. Tyagi, Padmnabh Rai, Jay Ghatak, P.V. Satyam, D.K. Avasthi and D. S. Misra. Applied Physics Letters,89, 091907 (2006).

12. Step Growth in Single-Crystal Diamond Grown by Microwave Plasma Chemical Vapor Deposition, Pawan K. Tyagi, Abha Misra, K.N. Narayanan Unni , Padmnabh Rai ,Manoj K. Singh, Umesh Palnitkar, D. S. Misra, F. Le Normand , Mainak. Roy, S.K. Kulshreshtha, Diamond and Related Materials, 15, 304 (2006).

13. FTIR Studies of Nitrogen-Doped Carbon Nanotubes, Abha Misra, Pawan K. Tyagi, M. K. Singh and D. S. Misra, Diamond and Related Materials, 15, 385 (2006).

14. Structural damage on multiwalled carbon nanotubes and encapsulated single crystal nickel nanorods irradiated with Au +7  ions of 100   MeV, Abha Misra, Pawan K. Tyagi, Manoj K. Singh, D. S. Misra, Jay Ghatak, P. V. Satyam and D.K. Avasthi, Diamond and Related Materials,     15, 300 (2006).

15. Melting of CVD diamond lattice under 100 Mev Au+ irradtion and generation of defects, Umesh Palnitlar D. S. Misra, Pawan K. Tyagi, V.S. Shirodkar, E. Titus, D. K. Avasthi and P. Ayyub, Thin Solid Films, 503, 121 (2006).

16. Thermogravimetric analysis of cobalt-filled carbon nanotubes deposited by chemical vapour deposition, Babu P. Ramesh, W.J. Blau, P.K. Tyagi, D.S. Misra, N. Ali, J. Gracio, G. Cabral, E. Titus,Thin Solid Films,494,128(2006).

17. High-resolution transmission electron microscopy mapping of nickel and cobalt single crystalline rods inside multiwalled carbon nanotubes and chirality calculations. Pawan K. Tyagi, Abha Misra, Manoj K. Singh, D. S. Misra, Jay Ghatak, P. V. Satyam, F. Le Normand,  Appl. Phys. Lett. 86, 253110 (2005).

18. Single crystalline nickel nanorods inside carbon nanotubes: their growth behavior, structure and magnetic properties, Pawan K. Tyagi, Abha Misra, Manoj K.Singh, E. Titus, D. S. Misra, Jay Ghatak, P. V. Satyam, Mainak Roy, Journal of Nanoscience and Nanotechnology, 5, 596 (2005).

19. Quantitative analysis of hydrogen in chemical vapor deposited diamond films, E. Titus, D.S. Misra, A.K. Sikder, P.K. Tyagi, M.K. Singh, Abha Misra, N. Ali, G. Cabral, V.F. Neto and J. Gracio, Diamond and related materials 14, 476 (2005)

20. Preparation of Ni-filled carbon nanotubes for key potential applications in nanotechnology, Pawan K. Tyagi, M. K. Singh, Abha Misra, N.   Kumar, D. S. Misra, E. Titus, N. Ali, J. Gracio, M. Roy and A. K. Dua, Thin Solid Films, 469, 127 (2004)

21. Growth of (100) oriented diamond grains by the application of lateral temperature gradients across silicon substrates, E. Titus, D. S. Misra, Manoj. K. Singh, Pawan. K. Tyagi, Abha  Misra, F. Le Normand, J. Gracio and N. Ali, Journal of Materials Research, 19, 3206 (2004).

22. Ni and Ni/Pt filling inside multiwalled carbon nanotubes, Manoj K. Singh, E. Titus, Pawan K. Tyagi, U A Palnitkar, D. S. Misra, Mainak Roy, A. K. Dua, C. S. Cojocaru, F. Le Normand, Journal of Nanoscience and Nanotechnology, 3, 165 ( 2003).

23. Diamond nucleation and growth on zeolites, E. Titus, M. K. Singh, K. N. N. Unni, P. K. Tyagi, A. K. Dua, Mainak Roy and D. S. Misra, Diamond and Related Materials, 12, 1647  (2003).

24. Effect of heavy ion irradiation on self-supported diamond sheets, Umesh Palnitkar, V. S. Shirodkar, Manoj K. Singh, Elby Titus, P. K. Tyagi, K. N. Unni, D. S. Misra, P. Ayuub and D. K. Avasthi, Diamond and Related Materials, 12, 1771 ( 2003).

25. Filling of carbon nanotubes, Pawan. K. Tyagi, Manoj. K. Singh. D. S. Misra, Published in Encylopedia of Nanoscience and Technology (American Scientific Publishers, Edited by Hari Singh Nalwa ),3, 416 (2003).