Dr. Ratnesh K Pandey

Dr. Ratnesh K Pandey

Assistant Professor - Senior Scale

B.Sc (Physics) University of Allahabad 

M.Sc (Physics). University of Allahabad 

Ph.D (Nanotechnology Application Centre), Physics Department University of Allahabad, Allahabad, India 

Area of Specialization

Ion- matter interaction, Thin films, Nano-clusters, Modeling/Simulations, Density Functional Theory (DFT), Nanotechnology, 2D materials 

Research & Publications:

Manvendra Kumar, Ratnesh K. Pandey, Parasmani Rajput, S.A. Khan, Fouran Singh, D.K. Avasthi, Avinash C. Pandey, Swift heavy ions induced nano-grain fragmentation in fluoride thin films, Journal of Alloys and Compounds, Volume 695, 25 February 2017, Pages 83-90, ISSN 0925-8388
 
Udai Bhan Singh, Ram Pratap Yadav, Ratnesh K. Pandey, Dinesh Chandra Agarwal, Compesh Pannu and Ashok Kumar Mittal: Insight mechanisms of surface structuring and wettability of ion treated Ag thin films. J. Phys. Chem. C, 2016, 120 (10), pp 5755–5763, Print Edition ISSN: 1932-7447 Web Edition ISSN: 1932-7455
  
R. P. Yadav, R. K. Pandey, A. K. Mittal, Manvendra Kumar, and A. C. Pandey: Surface Roughness and Fractal Study of CaF2 Thin Films. Mater. Focus 4, 403-408 (2015) ISSN: 2169-429X (Print) EISSN: 2169-4303 (Online)
 
Ratnesh K. Pandey, Manvendra Kumar, Tanuj Kumar, Avinash C. Yadav, Udai B. Singh, Saif A. Khan, Ambuj Tripathi, D. K. Avasthi, Avinash C. Pandey: Dynamic scaling of swift heavy ion induced surface restructuring of BaF2 thin film. Materials Letters 143 (2015) 309-311. Impact Factor: 2.269 ISSN: 0167-577X
 
Ratnesh K Pandey, Kevin Waters, Sandeep Nigam, Haiying He, Subhash S. Pingale, Avinash C. Pandey, Ravindra Pandey: A Theoretical Study of Structural and Electronic Properties of Alkaline-Earth Fluoride Clusters. Computational and Theoretical Chemistry 1043 (2014) 24-30. Impact Factor: 1.368 ISSN: 2210-271X
  
Manvendra Kumar, S.A. Khan, Ratnesh K Pandey, Parasmani Rajput, Fouran Singh, DK Avasthi, AC Pandey: Damage creation in Lithium Fluoride thin films induced by swift heavy ions. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, 332 (2014) 134. Impact Factor: 1.186 ISSN: 0168-583X
  
Ratnesh K. Pandey, Manvendra Kumar, Saif A. Khan, Tanuj Kumar, Ambuj Tripathi, D.K. Avasthi, Avinash C. Pandey: Study of electronic sputtering of CaF2 thin films. Applied Surface Science, 289 (2014) 77– 80. Impact Factor: 2.538  ISSN: 0169-4332
 
R. P. Yadav, R. K. Pandey, A. K. Mittal, S. Dwivedi, A. C. Pandey: Multifractal analysis of sputtered CaF2 thin films. Surface and Interface Analysis, 45 (2013) 11-12. Impact Factor: 1.393  Online ISSN: 1096-9918
  
Ratnesh K. Pandey, Manvendra Kumar, Udai B. Singh, Saif A. Khan, D.K. Avasthi, Avinash C. Pandey: Swift heavy-ions induced sputtering in BaF2 thin films. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, 314 (2013) 21–25. Impact Factor: 1.186 ISSN: 0168-583X
 
Tanuj Kumar, Manish Kumar, Govind Gupta, R K Pandey, S Verma, D Kanjilal: Role of surface composition in morphological evolution of GaAs nano-dots with low-energy ion irradiation. Nanoscale Research Letters 7, 1 (2012):1-8. Impact Factor: 2.481. Journal ISSN: 931-7573 
 
Ratnesh K Pandey, Sandeep Nigam, Kevin Waters, Ravindra Pandey, Avinash Chandra Pandey: Vibrational spectra of (BaF2)n (n=1-6) clusters. AIP Conference Proceedings 1731, 090034 (2016) ISSN: 0094-243X E-ISSN: 1551-7616
 
Ratnesh K. Pandey, Avinash C. Pandey, Saif A. Khan, D. K. Avasthi: Sputtering of CaF2 Thin Films. AIP Conference Proceedings, 1349 (2011) 651. ISSN: 0094-243X E-ISSN: 1551-7616
  
Conferences
 
Ratnesh K Pandey, Sandeep Nigam, Kevin Waters, Ravindra Pandey, Avinash Chandra Pandey: Vibrational Spectra of (BaF2)n (n=1-6) clusters. 60th DAE Solid State Physics Symposium, Amity University, U.P., Noida, India; Dec 21-25, 2015. POSTER Presentation
 
Avinash C Yadav, Ratnesh K. Pandey, Manvendra Kumar, and Avinash C. Pandey: Swift Heavy Ions (SHI) induced Surface Restructuring in BaF2 thin films. 59th DAE Solid State Physics Symposium, Vellore, India; Dec 16-20, 2014. POSTER Presentation
 
Ratnesh K Pandey, Manvendra Kumar, Tanuj Kumar, Udai B Singh, Ambuj Tripathi, D. K . Avasthi, Avinash C. Pandey: Swift Heavy Ions induced Material Reorganization on Surface of BaF2 thin films. International conference on swift heavy ions induced material engineering and characterization (SHIMEC 2014), New Delhi, India; Oct 14-17, 2014. ORAL Presentation
 
Ratnesh K. Pandey, Manvendra Kumar, Tanuj Kumar, Udai B. Singh, Saif A. Khan, Ambuj Tripathi, D. K. Avasthi, Avinash C. Pandey: Dynamic Scaling and Origin of Cracks on BaF2 Thin Film Surface Under Swift Heavy Ion Irradiation: Effects of Sputtering and Tensile Stress. International Conference on Advanced Materials and Applications (ICAMA-2014), University of Allahabad, India; March 24-26, 2014. POSTER Presentation
 
The third International Symposium on Clusters, Cluster Assemblies and nano-scale Materials (ISCANM-III) held at the Harish-Chandra Research Institute, Allahabad, India; March 11-14, 2014. PARTICIPANT
 
Ratnesh K. Pandey, Manvendra Kumar, Saif A. Khan, D. K. Avasthi and Avinash C. Pandey, Electronic Sputtering of Fluoride Thin Films: A Study of Substrate Effect. International Conference on Nanostructuring by ion beams (ICNIB 2013), Jaipur, India; Oct 23-25, 2013. POSTER Presentation
 
Ratnesh K. Pandey, M. Kumar, Saif A. Khan, D. K. Avasthi and Avinash C. Pandey, Swift Heavy Ion Induced Sputtering in BaF2 Thin Films, International Symposium on Swift Heavy Ions in Matter (SHIM 2012), Kyoto, Japan; Oct 24-27, 2012. ORAL Presentation
 
International Conference on Atomic Collisions in Solids (ICACS-25), Kyoto, Japan, Oct 21-25, 2012.  PARTICIPANT
Ratnesh K. Pandey, Saif A. Khan, M. Kumar, Udai B. Singh, Tanuj Kumar, Dinesh C. Aggarwal, D.K . Avasthi, Ambuj Tripathi and
 
Avinash C. Pandey, Study of Surface Modifications and Ejection Process in BaF2 Thin Films Due to Bombardment of 100 Mev Au+28 Ions. International Conference on Swift Heavy Ions in Materials Engineering and Characterization (SHIMEC 2012), New Delhi, India; Oct 9-12, 2012. ORAL Presentation
 
Ratnesh K Pandey, Saif A Khan, D K Avasthi, A Tripathi and Avinash C Pandey, Structural Changes in CaF2 Thin Films Due to Impact of Swift Heavy Ions. Conference on Nanostructuring by ion beams (NIB-2011), Allahabad, India; Oct 17-19, 2011. POSTER Presentation
 
Ratnesh K. Pandey, S. A. Khan, D. K. Avasthi and A. C. Pandey, Creation of Nanostructures By Ion Irradiation Of CaF2 Thin Films. National Symposium on Nanomaterials in Engineering and Technology, Allahabad, India during; Feb 19- 21, 2011. POSTER Presentation
 
Ratnesh K. Pandey, S. A. Khan, D. K. Avasthi and A. C. Pandey, Sputtering of CaF2 Thin Films. 55th DAE Solid State Physics Symposium 2010 (DAE-SSPS 2010), Manipal University, Karnataka, India; Dec 26-30, 2010. POSTER Presentation
 
Ratnesh K. Pandey, S. A. Khan, D. K. Avasthi, Ambuj Tripathi, Prashant K. Sharma, Udai Bhan Singh and A. C. Pandey, Effect of 120 Mev Ag+25 Ion Bombardment on CaF2 Thin Films. International Conference on Swift Heavy Ions in Materials Engineering and Characterization (SHIMEC 2010), New Delhi, India; Oct 6-9, 2010. POSTER Presentation
 
Ratnesh K. Pandey, Prashant K. Sharma, Saif A. Khan, D. K. Avasthi, A. C. Pandey, Creation of One Dimensional CaF2 Nanostructures by SHI Induced Thin Films Irradiation, 4th International Conference, “INDIAS 2010, Allahabad, India; Sept 19-21, 2010. POSTER AND ORAL Presentations, Best Poster Award.
Research Projects:

Principal Investigator of the DST_SERB research project entitled "2D Material: Multilayer GaN" of 3 years duration.

Scientific Memberships

Life member of The Society for Material Chemistry,

Life member of Ion beam society of India

Achievements   


Year 2014: Paper entitled “A theoretical study of structural, electronic and vibrational properties of small fluoride clusters” was presented in APS March Meeting 2014, Volume 59, Number 1 during March 3-7, 2014.

Year 2013: Worked as a visitor scholar at Michigan Technological University, USA on a collaborative project work.

Year 2012: Senior Research Fellowship from Department of Science and Technology, Government of India,

Year 2009: Junior Research Fellowship from University Grants Commission, India

Year 2010: Best poster award in international conference ‘INDIAS-2010’ held at the University of Allahabad, Allahabad, India during September 19-21, 2010.

Abroad Visits

Michigan Technological University, USA for collaborative research work.

Kyoto University, Japan for oral presentation in international conference ‘SHIM 2012’.

Laboratories worked in :  Inter-University Accelerator Centre, New Delhi