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Dr. Ranjit Thapa, Associate, IASc, Bangalore

Ph.D

Associate Professor

Group Abstract

In current date first-principles based simulations can provide a fast and cost effective way to screen the materials and predict their relative performance. In reality to test every material to find the best possible one by experimentalist, need huge resource, funding and off-course long time. The first-principles based calculation can also predict new materials for different application and can provide the robust theory behind different experimental observation. Our group is primarily focused on first-principles based investigation of “low dimensional and Pt-free material as catalyst for CO oxidation, Oxygen reduction reaction (ORR) and CO2 conversion”, “materials for hydrogen storage”, “electrode materials for ion-Bateries” and “Solar Absorber Layer Materials”.

Website: http://www.ranjitcmslab.com

Important Findings

  • New type of carbon based anode materials (having both sp2 and sp3 bond), better than sp2 bonded graphite and sp3 bonded Si structure
  • Surface Magnetism in case of Amine functionalized graphene, doorway to spintronics
  • The five rings in the BN-60 structures (analogues to C60) developed the homonuclear B and N bonds
  • Homonuclear B-B bonds can anchor both O2 and CO molecules, because of charge transfer to π* orbital from the surface states and found to be potential candidates for CO oxidation via Langmuir–Hinshelwood (LH) mechanism
  • B-B-B sites can adsorb CO2 molecule, through bending of CO2 molecule, which results in splitting of LUMO orbitals named 2a and 2b, of which 2b can readily accept the electrons
  • The presence of water enhances the catalytic activity and help for de-poisoning
  • Electron-doped h-BN as metal-free catalyst outperforms the reported metal based catalyst
  • CO oxidation on SiC monolayer prefers ER mechanism. CO oxidation on SiC Thin film prefers LH mechanism. Graphitic and Ag-111 substrates help in tuning the CO oxidation mechanism
  • The origin of catalytic property of graphene based catalysts is explained based on the occupancy of pz orbitals
  • The competition between epoxy and enolate configuration on graphene based surfaces under different doping condition has been identified and explained
  • The origin of adsorption capabilities of DV-Defect is explained
  • The O2 adsorption in superoxo state is likely to lead to a more efficient oxygen reduction reaction (ORR) than that in the peroxo state
  • MgO/Ag-111 structure is proposed as Inverse catalyst for ORR catalyst with high on-set potential and has resistance to CO contamination
  • Introduced Bond Exchange spillover mechanism using external mediators: New suggestion

Projects

1.

Project Title:Dioxygen reduction using low dimensional materials in the energy generation/ storage device: first principles study - Department of Science and Technology (SERB) under Young Scientists Scheme: PI:Dr. Ranjit Thapa– March 2014 to March 2017. Completed

2.

Project Title: Development of Electrode Materials for High Energy Density Lithium ion Batteries and Computational Studies of Solar Absorber layers, Co-PI: Ranjit Thapa (Full computational Part), – May 2016 to May 2019. On-going

3

Project Title: First principles identification of descriptor for carbon based catalyst, Board of Research in Nuclear Sciences (BRNS), PI: Dr. Ranjit Thapa – Submitted

4

Project Title:Mechanistic of CO oxidation on metal free catalyst and property package, Department of Science and Technology (SERB) under Extramural Research Funding (individual centric): PI: Dr. Ranjit Thapa and Co-PI: Bhalchandra A. Kakade, 2017-2020 On-Going

5

Project Title: Center of Excellence for Advanced Energy Materials, DST - Special Call, Materials for Energy Conservation and Storage Platform” (MECSP) – 2017, Nodal PI: Dr. Ranjit Thapa, Co-PI: Dr.Bhalchandra Kakade and Dr. Debabrata Sarkar. Five institute involves to make the center: SRMIST, JAIN Univ., IMMT, NISER, IITG, Submitted.

 

Professional recognition, awards, fellowships received

 
  • ASSOCIATE, INDIAN ACADEMY OF SCIENCES (BANGALORE) 2016-2019
  • THE ABDUS SALAM INTERNATIONAL CENTRE FOR THEORETICAL PHYSICS (ICTP), FULL SUPPORT FELLOWSHIP, TO ATTEND “WORKSHOP ON MATERIALS SCIENCE FOR ENERGY STORAGE”, VENUE: TRIESTE, ITALY, DATES: 11/05/2015 - 15/05/2015.
  • QUALIFIED FOR CSIR-SRF OF CSIR IN YEAR 2008.
  • QUALIFIED FOR CSIR-JRF OF CSIR-NET-PHYSICAL SCIENCE 2005 ORGANIZED JOINTLY BY UGC-CSIR, INDIA.
  • QUALIFIED JOINT ENTRANCE SCREENING TEST(JEST)-PHYSICS 2005, ORGANIZED BY RESEARCH INSTITUTES (E.G. SNBNCBC), INDIA. 93 %
  • QUALIFIED GRADUATE APTITUDE TEST IN ENGINEERING (GATE)-PHYSICS 2005, ORGANIZED BY IITS, INDIA. 96.06 %
  • FIRST CLASS FIRST (GOLD MEDALIST) IN M.SC.-PHYSICS 2004 UNDER UNIVERSITY OF NORTH BENGAL.

     

 

Contribution to Institute’s Infrastructural Development:

SRM-Supercomputer Center: Faculty In-charge, take part from scratch to establish the facility at SRMIST.

http://mysrm.srmuniv.ac.in/HPCC/

SRM IST has setup a High Performance Computer Cluster (HPCC), called SRM-HPCC for catering to intensive computational tasks in numerous

research areas, which would essentially be spearheaded by the SRM Research Institute. SRM-HPCC is currently based on 73 compute nodes (CN), A total of

1870 CPU cores with 16 TB RAM and Infiniband QLogic IB QDR 36 Port switch for interconnecting nodes are aimed at strengthening the computational

capability of SRM University in a large manner. The total servers are about 70 teraflop.

Ph.D. Student (Completed)

1. Dr. S. Sinthika, Title: “Dioxygen Reduction in the Energy Conversion Devices and CO Oxidation Using Metal-Free Catalysts: First-Principles Study”, Joining Date: 15th July 2013. Ph.D. date: 24th March 2017

2. Dr. E. Mathan Kumar, Title: “First-Principles Study of Hydrogen Storage Materials: Spillover Mechanism and Dehydrogenation”, Joining Date: 29th Oct. 2013. Thesis Submitted: 03rd August 2017. Ph.D. Viva on 6th February 2018

3. Mr. A. Rajkamal, Title: “Carbon Allotropes as Anode Materials for Lithium Ion Battery” Joining Date: Jan. 2014 (Co-Guide):  Thesis Submitted: December 2017 

 

First-Principles Based Study:

(1) Oxygen Catalyst, Metal-Free catalyst, Descriptor

(2) CO oxidation, CO2 reduction, and Hydrogen storage and desorption.

(3) Two dimensional nanostructures

(4) Solar Absorber Layer Materials

(5) Electrode Materials for Li-ion batteries

 

Website: http://www.ranjitcmslab.com

Please check the link for details
 
 

Total Number of Publication - 64

h-index -19

i-index - 30

Cummulative Impact Factor : 259.65

Website: http://www.ranjitcmslab.com

Publications

Selected Publications from SRM Research Institute, SRM Institute of Science and Technology (formerly known as SRM University)

1] S. Sinthika, U. V. Waghmare* and Ranjit Thapa*, First-principles identification of structural and electronic descriptors for graphene based catalysts,  Small, 14, 1703609, 2018, *Corresponding Author IF: 8.643

2] A. Rajkamal, S. Sinthika, Gunther Andersson, and Ranjit Thapa*, Ring type and p electron occupancy decides the Li-ion storage properties of Phagraphene: An example of sp2 hybridized carbon structure, Carbon, 129, 775 2018, *Corresponding Author IF: 6.337

3] Moorthi Lokanathana, Indrajit M. Patila, M. Navaneeth and Ranjit Thapa*, Bhalchandra Kakade*, Designing of stable and highly efficient ordered Pt2CoNi ternary alloy electrocatalyst: The origin of dioxygen reduction activity,  Nano Energy, 43, 219–227, 2018, *Corresponding Author IF: 12.343

4] E. Mathan Kumar, A. Rajkamal and Ranjit Thapa*, First-principles study on dehydrogenation of MgH2: Layer dependent doping and screening based approach,  Scientific Reports, 7, 15550, 2017. *Corresponding Author, IF: 4.259

5] A. Rajkamal, E. Mathan Kumar, V. Kathirvel, Noejung Park, and Ranjit Thapa*, “Si doped T6 carbon structure as an anode material for Li-ion batteries: An ab initio study”, Scientific Reports, 6, 37822, 2016*Corresponding Author IF: 4.259

6] S. Sinthika, Vala Surya Teja, Y. Kawazoe, Ranjit Thapa* CO Oxidation Prefers Eley–Rideal or Langmuir–Hinshelwood Pathway: Monolayer vs. Thin Film of SiC. ACS Applied Materials & Interface, 8, 5290–5299, 2016*Corresponding Author IF: 7.504

7] E. Mathan Kumar, S. Sinthika and Ranjit Thapa,* "First principles guide to tune h-BN nanostructures as superior light element based hydrogen storage material: Role of bond exchange spillover mechanism", Journal of Materials Chemistry A, 3, 304-313, 2015. *Corresponding Author, IF: 8.867

8] Dongbin Shin, S. Sinthika, Min Choi, Ranjit Thapa,* Noejung Park,* "Ab initio study of thin oxide-metal overlayers as an inverse catalytic system for dioxygen reduction with enhanced CO tolerance", ACS Catalysis, 4, 4074–4080, 2014. *Corresponding Author, IF: 10.614

9] SSinthika, E. Mathan Kumar, Ranjit Thapa*, Doped h-BN monolayer as efficient noble metal-free catalysts for CO oxidation: role of dopant and water in activity and catalytic de-poisoning", Journal of Materials Chemistry A, 2, 12812 – 12820, 2014*Corresponding Author, IF: 8.867

10] S. Nandy, Ranjit Thapa, M. Kumar, T. Som, N. Bundaleski, O. M.N.D. Teodoro, R. Martins, E. Fortunato, “Efficient Field Emission from Vertically Aligned Cu2O1δ(111) Nanostructure Influenced by Oxygen Vacancy”, Advance Functional Materials, 25 (2015) 947–956. IF: 12.124

 

All Publications

2018

1] S. Sinthika, U. V. Waghmare* and Ranjit Thapa*, First-principles identification of structural and electronic descriptors for graphene based catalysts,  Small, 14, 1703609, 2018, *Corresponding Author IF: 8.643

2] A. Rajkamal, S. Sinthika, Gunther Andersson, and Ranjit Thapa*, Ring type and p electron occupancy decides the Li-ion storage properties of Phagraphene: An example of sp2 hybridized carbon structure, Carbon, 129, 775 2018, *Corresponding Author IF: 6.337

3] Moorthi Lokanathana, Indrajit M. Patila, M. Navaneeth and Ranjit Thapa*, Bhalchandra Kakade*, Designing of stable and highly efficient ordered Pt2CoNi ternary alloy electrocatalyst: The origin of dioxygen reduction activity,  Nano Energy, 43, 219–227, 2018, *Corresponding Author IF: 12.343

4] Bera, A.,  Deb, K.,  Sinthika, S.,  Thapa, R.,  Saha, B., Chemical modulation of valance band in delafossite structured CuFeO2 thin film and its photoresponse, Materials Research Express, 5, 015909, 2018. IF: 1.068

2017

5] E. Mathan Kumar, A. Rajkamal and Ranjit Thapa*, First-principles study on dehydrogenation of MgH2: Layer dependent doping and screening based approach,  Scientific Reports, 7, 15550, 2017*Corresponding Author, IF: 4.259

6]  A Bera, K Deb, T Bera, S Sinthika, Ranjit Thapa, B Saha, Effect of Mg substitution in delafossite structured CuFeO2 thin film deposited on FTO coated glass substrate and its diode characteristics,Thin Solid Films, 642, 2017, 316-323. IF: 1.879

7] Arnab Ghosh, Ranjit Thapa, E. Mathan Kumar,  Ponnambalam, Sabari kirishwaran, Ranveer Singh, Rarlapalli Satyam, Ag nanoparticles decorated molybdenum oxide structures: Growth, characterizations, DFT studies and their application for enhanced field emission" Puspendu Guha,  Nanotechnology, accepted, 2017. IF: 3.44

8] Rajarshi Roy, Ranjit Thapa, Soubhik Chakrabarty, Arunava Jha, E. Mathan Kumar, Kalyan K. Chattopadhyay, Role of oxygen functionality on the band structure evolution and conductance of reduced graphene oxide,  Chemical Physics Letters, 677, 2017, 80-86. IF: 1.815

9] S. Nandhini, A. Rajkamal, Biswajit Saha and Ranjit Thapa*, First-Principles Identification of Site Dependent Activity of Graphene based Catalyst, Molecular Catalysis, 432, 2017, 242 249*Corresponding Author IF: 4.211

10] Shatabda Bhattacharya, E. Mathan Kumar, Ranjit Thapa and Shyamal K. Saha, “Interlayer exchange coupling in Ni(OH)2/Graphene/Ni(OH)2 nanostructure using charge transfer effect at the interface”, Applied Physics Letter, 110, 2017, 032404. IF: 3.411

11] Paramita Banerjee, Soubhik Chakrabarty, Ranjit Thapa*and G.P. Das, Exploring the catalytic activity of pristine T6[100] surface for oxygen reduction reaction: A first-principles study, Applied Surface Science, 418, 2017, 56-63. *Corresponding Author IF: 3.387

12] Arun Bera, Kamanashis Sarkar, Krishna Deb, Ranjit Thapa, Biswajit Saha, Schottky diode behaviour with excellent photoresponse in NiO/FTO heterostructure, Applied Surface Science, 418, 2017, 328-334. IF: 3.387

13] Soubhik Chakrabarty, Tisita Das, Paramita Banerjee, Ranjit Thapa, G. P. Das, Electron doped C2N monolayer as efficient noble metal-free catalysts for CO oxidation, Applied Surface Science, 418, 2017, 92-98 . *Corresponding Author IF: 3.387

14] Arun Bera, Krishna Deb, A Kathirvel, T Bera, Ranjit Thapa, Biswajit Saha, Flexible diode of Polyaniline/ITO heterojunction on PET substrate, Applied Surface Science, 418, 2017, 264-269. IF: 3.87

2016

15] A. Rajkamal, E. Mathan Kumar, V. Kathirvel, Noejung Park, and Ranjit Thapa*, “Si doped T6 carbon structure as an anode material for Li-ion batteries: An ab initio study”, Scientific Reports, 6, 37822 2016*Corresponding Author IF: 4.259

16] Rajarshi Roy#Ranjit Thapa#, Gundam S. Kumar, Nilesh Mazumder, Dipayan Sen, S. Sinthika, Nirmalya S. Das and Kalyan K. Chattopadhyay, “Colossal magnetoresistance in amino functionalized graphene quantum dots at room temperature: Manifestation of weak anti-localization and doorway to spintronics”, Nanoscale, 8, 8245-8254, 2016. #Same Contribution IF: 7.367

17] S. Sinthika, Vala Surya Teja, Y. Kawazoe, Ranjit Thapa* CO Oxidation Prefers Eley–Rideal or Langmuir–Hinshelwood Pathway: Monolayer vs. Thin Film of SiC. ACS Applied Materials & Interface, 8, 5290–5299, 2016. *Corresponding Author IF: 7.504

18] A. Ghosh, P. Guha, Ranjit Thapa, S. Sinthika, M. Kumar, B. Rakshit, T. Dash, P. V. Satyam, Tuning Work Function of Randomly Oriented ZnO nanostructures by capping with Faceted Au nanostructure and Oxygen defects: Enhanced Field Emission Experiments and DFT studies, Nanotechnology, 27, 125701, 2016. IF: 3.44

19] E. Mathan Kumar, B. Prajapat, B. Saha, Ranjit Thapa*, Spillover of Hydrogen on SiC-ML Surface: Doping Effect and Bond Exchange Mechanism, International Journal of Hydrogen Energy, 41, 3928, 2016. *Corresponding Author IF: 3.205

20] K. Iyakutti, E. Mathan Kumar, Ranjit Thapa, R. Rajeswarapalanichamy, V. J. Surya, Y. Kawazoe, Effect of multiple defects and substituted impurities on the band structure of graphene: a DFT study, J Mater Sci: Mater Electron, 2016. IF: 1.798

21] A. Bera, K. Deb, K.K. Chattopadhyay, Ranjit Thapa, B. Saha, Mixed phase delafossite structured p type CuFeO2/CuO thin film on FTO coated glass and its Schottky diode characteristics, Microelectronic Engineering, 162, 23–26, 2016. IF: 1.806

22] K. Iyakutti, E. Mathan Kumar, I. Lakshmi, Ranjit Thapa, R. Rajeswarapalanichamy, V. J. Surya, Y. Kawazoe, Effect of surface doping on the band structure of graphene: a DFT study, Journal of Materials Science: Materials in Electronics, 27, 2728, 2016. IF: 1.798

2015

23] U. N. Maiti, Ranjit Thapa, J. Lim, D. J. Li, S. O. Kim, Self-Size-Limiting Nanoscale Perforation of Graphene for Dense Heteroatom Doping,  ACS Applied Materials & Interface, 7, 25898, 2015. IF: 7.504

24] S. Sinthika, E. Mathan Kumar, V. J. Surya, Y. Kawazoe, Noejung Park, K. Iyakutti, Ranjit Thapa*, Activation of CO and CO2 on Homonuclear Boron Bonds of Fullerene-like BN Cages: First Principles Study,  Scientific Reports, 5, 17560, 2015. *Corresponding Author IF: 4.259

25] S. Sinthika, Ranjit Thapa*, Influence of enolate/epoxy configuration, doping and vacancy on the catalytic activity of graphene, RSC Advances, 5, 93215, 2015. *Corresponding Author IF: 3.108

26] Kusha Kumar Naik, Ruchita T. Khare, Rogerio V. Gelamo, Mahendra A. More, Ranjit Thapa, Dattatray J. Late,  Chandra Sekhar Rout, Enhanced electron field emission from NiCo2O4 nanosheet arrays, Material Research Express, 2 (2015) 095011. IF: 1.068

27] Soubhik Chakrabarty, A. H. M. Abdul Wasey, Ranjit Thapa,* G. P. Das, First principles design of divacancy defected graphene nanoribbon based rectifying and negative differential resistance device", AIP Advance, 5 (2015) 087163. *Corresponding Author, IF: 1.564

28] A. Samantara, D. Mishra, S. Suryawanshi, M. More, Ranjit Thapa, D. J. Late, B. K. Jena, C. S. Rout, “Facile synthesis of Ag nanowires-rGO composites and their promising field emission performance”, RSC Advance, 5 (2015) 41887. IF: 3.108

29] Dongbin Shin, Ranjit Thapa,* Noejung Park,* "An oxygen reduction catalytic process through superoxo adsorption states on n-type doped h-BN: a first-principles study", Current Applied Physics, 15, (2015) 727–732. *Corresponding Author, IF: 2.144

30] S. Nandy, Ranjit Thapa, M. Kumar, T. Som, N. Bundaleski, O. M.N.D. Teodoro, R. Martins, E. Fortunato, “Efficient Field Emission from Vertically Aligned Cu2O1δ(111) Nanostructure Influenced by Oxygen Vacancy”, Advance Functional Materials, 25 (2015) 947–956. IF: 12.124

31] S. Ratha, R. Khare, M. A. More, Ranjit Thapa, D. J. Late, C. S. Rout, "Field Emission properties of spinel ZnCo2O4 Microflowers", RSC Advance, 5 (2015) 5372-5378. IF: 3.289

32] E. Mathan Kumar, S. Sinthika and Ranjit Thapa,* "First principles guide to tune h-BN nanostructures as superior light element based hydrogen storage material: Role of bond exchange spillover mechanism", Journal of Materials Chemistry A, 3 (2015) 304-313. *Corresponding Author, IF: 8.867

33] A. Beraa, Ranjit Thapa, K. K. Chattopadhyay, B. Saha, In plane conducting channel at the interface of CdO-ZnO isotype thin film heterostructure, Journal of Alloys and Compounds, 632 (2015) 343-347. IF: 3.133

34] A. Debnatha, Ranjit Thapa, K. K. Chattopadhyay, B. Saha, Spectroscopic studies on interaction of Congo red with Ferric Chloride in aqueous medium for waste water treatment, Separation Science and Technology, 50 (2015) 1684-1688. IF: 1.083

35] Ranjit Thapa,* Saurabh Ghosh, S. Sinthika S, E. Mathan Kumar, Noejung Park, "Magnetic, elastic and optical properties of zinc peroxide (ZnO2): First principles study", Journal of Alloys and Compounds, 620 (2015) 156-163. *Corresponding Author, IF: 3.133

2014

36] K. K. Naik, R. Khare, D. Chakravarty, M. A. More, Ranjit Thapa,* D. J. Late,* C. S. Rout,* Field Emission properties of ZnO Nanosheet Arrays, Applied Physics Letters, 105 (2014) 233101.  *Corresponding Author, IF: 3.411

37] Dongbin Shin, S. Sinthika, Min Choi, Ranjit Thapa,* Noejung Park,* "Ab initio study of thin oxide-metal overlayers as an inverse catalytic system for dioxygen reduction with enhanced CO tolerance", ACS Catalysis, 4 (2014) 4074–4080. *Corresponding Author, IF: 10.614

38] D. Sen#Ranjit Thapa# and K. K. Chattopadhyay, "A first-principles investigation of oxygen reduction reaction catalysis capabilities of As decorated defect graphene", Dalton Transactions, 43 (2014) 15038. #Same Contribution, IF: 4.029

39] SSinthika, E. Mathan Kumar, Ranjit Thapa*, Doped h-BN monolayer as efficient noble metal-free catalysts for CO oxidation: role of dopant and water in activity and catalytic de-poisoning", Journal of Materials Chemistry A, 2 (2014) 12812 - 12820. *Corresponding Author, IF: 8.867

40] D. Sen, Ranjit Thapa, K. K. Chattopadhyay, "Rules of B-N doping in defect graphene sheet: A first-principles investigation of bandgap tuning and ORR catalysis capabilities", Chem Phys Chem, 15 (2014) 2542-2559. IF: 3.075

41] G. Sandeep Kumar, Rajarshi Roy, Dipayan Sen, Uttam K. Ghorai, Ranjit Thapa,  Nilesh Mazumder, Subhajit Saha and Kalyan K. Chattopadhyay, "Amino-functionalized Graphene Quantum Dots: Origin of Tunable Hetrogeneous Photoluminescence" Nanoscale6 (2014) 3384-3391. IF: 7.367

2013

42] Ranjit Thapa*, G. P. Das, "Optical and Vibrational properties of hydrogenated BN-sheet: First Principle study", Applied Surface Science, 284 (2013) 638– 643. *Corresponding Author, IF: 3.387

43] Ruiguo Cao, Ranjit Thapa, Hyejung Kim, Xiaodong Xu, Min Gyu Kim, Qing Li, Noejung Park, Meilin Liu, Jaephil Cho, Promotion of Oxygen Reduction by a Bio-inspired FePc-Py-CNTs Catalyst, Nature Communications, 4 (2013) Article No. 2076. IF: 12.124

44] D. Sen, Ranjit Thapa, K. K. Chattopadhyay, "Small Pd cluster adsorbed double vacancy defect graphene sheet for hydrogen storage: A first-principles study", International Journal of Hydrogen Energy38 (2013) 3041. IF: 3.582

2012

45] Ranjit Thapa, Noejung Park, "First-Principles Identification of Iodine Exchange Mechanism in Iodide Ionic Liquid", The Journal of Physical Chemistry Letters, 3 (2012) 3065−3069. IF: 9.353

46] Ranjit Thapa, S. Maiti, T. H. Rana, U. N. Maiti and K. K. Chattopadhyay, “TiO2 Nanoparticles synthesis via simple hydrothermal route: Degradation of Orange II, Methyl Orange and Rhodamine B”, Journal of Molecular Catalysis A: Chemical363-364 (2012) 223-229. IF: 4.211

47] A Jha, Ranjit Thapa and K. K. Chattopadhyay, “Structural transformation from Mn3O4 nanorods to nanoparticles and band gap tuning via Zn doping”, Materials Research Bulletin47 (2012) 813-819. IF: 2.446

48] D. Sen, Ranjit Thapa, K. Bhattacharjee and K. K. Chattopadhyay, “Site dependent metal adsorption on (3x3) h-BN monolayer: Stability, Magnetic and Optical properties”, Computational Materials Science56 (2012) 165-171. IF: 2.296

2011

49] A. Sen, U.N. Maiti, Ranjit Thapa and K. K. Chattopadhyay, “Temperature-dependent ac conductivity and dielectric response of vanadium doped CaCu3Ti4O12 ceramic”, Applied Physics A: Materials Science and Processing, 104 (2011) 1105-1111. IF: 1.455

50] Ranjit Thapa, D. Sen, M. K. Mitra, and K. K. Chattopadhyay, “Palladium atoms and its dimers adsorbed on graphene: first principles study”, Physica B: Condensed Matter, 406 (2011) 368–373. IF: 1.386

2010

51] Ranjit Thapa, B. Saha and K. K. Chattopadhyay, “First principles analysis on V3+ doped aluminum nitride” Computational Materials Science”, 49 (2010) 363-67. IF: 2.296

52] Ranjit Thapa, B. Saha, U. N. Maiti, N.S. Das and K. K. Chattopadhyay, “Self filling of Ni nanoparticles in amorphous AlN nanotubes” Applied Surface Science256 (2010) 3988–3992. IF: 3.387

53] A. Sen, U.N. Maiti, Ranjit Thapa and K. K. Chattopadhyay, “Effect of vanadium doping on the dielectric and nonlinear current-voltage characteristics of CaCu3Ti4O12 ceramic”, Journal of Alloys and Compounds, 506 (2010) 853-857. IF: 3.133

54] U. N. Maiti, S. Maiti, Ranjit Thapa and K. K. Chattopadhyay, “Flexible cold cathode with ultralow threshold field designed through wet chemical route”, Nanotechnology, 21 (2010) 505701. IF: 3.44

55] N. S. Das, B.Saha, Ranjit Thapa, G. C. Das, K. K. Chattopadhyay, “Band gap widening of nanocrystalline nickel oxide thin films via phosphorus doping”, Physica E, 42 (2010) 1377–1382. IF: 2.221

56] B. Saha, Ranjit Thapa, N. S. Das and K. K. Chattopadhyay, “Intentionally incorporated defect and its consequences in oxide thin film through Radio Frequency Magnetron Sputtering Technique”, Indian Journal of Physics, 84 (2010) 681-685. IF: 0.988

57] Ranjit Thapa, B. Saha, S. Goswami and K. K. Chattopadhyay, “Study of field emission and dielectric properties of AlN films prepared by DC sputtering technique at different substrate temperatures”, Indian Journal of Physics 84(10) (2010) 1343-1350. IF: 0.988

58] B. Saha, Ranjit Thapa, S. Jana and K. K. Chattopadhyay”, Optical and Electrical Properties of P-type Transparent Conducting CuAlO2 Thin film Synthesized by Reactive Radio Frequency Magnetron Sputtering Technique”, Indian Journal of Physics 84(10) (2010) 1337-1342. IF: 0.988

2009

59] Ranjit Thapa, B. Saha and K. K. Chattopadhyay,“Enhanced field emission from Si doped nanocrystalline AlN thin films” Applied Surface Science, 255 (2009) 4536–4541. IF: 3.387

60] Ranjit Thapa, B. Saha, K. K. Chatopadhyay, “Synthesis of cubic aluminum nitride by VLS technique using gold chloride as a catalyst and its optical and field emission properties”, Journal of Alloys and Compounds, 475 (2009) 373–377. IF: 3.133

61] B. Saha, Ranjit Thapa, K. K. Chattopadhyay, “A novel route for the low temperature synthesis of p-type transparent semiconducting CuAlO2” Materials Letters, 63 (2009) 394–396. IF: 2.572

2008

62] S. Jana, Ranjit Thapa, R. Maity and K. K. Chattopadhyay, “Optical and dielectric properties of PVA capped nanocrystalline PbS thin films synthesized by chemical bath deposition” Physica E 40 (2008) 3121– 3126. IF: 2.221

63] B. Saha, Ranjit Thapa, K. K. Chattopadhyay, “Wide range tuning of electrical conductivity of RF sputtered CdO thin films through oxygen partial pressure variation”, Solar Energy Materials and Solar Cells, 92 (2008) 1077– 1080. IF: 4.738

64] B. Saha, Ranjit Thapa, K. K. Chattopadhyay, “Band gap widening in highly conducting CdO thin film by Ti incorporation through radio frequency magnetron sputtering technique”, Solid State Communications, 145 (2008) 33–37. IF: 1.554

1.

Course Name: Quantum Mechanics – Even Semester

 

Course Code: NT1008

 

Question Bank 

2

Couse Name: Spintronics – Odd Semester

 

Course Code:NT0431

3

Couse Name: Spintronics – Modeling Tools and Techniques for micro and nano systems.

 

Course Code:NT1019

 

 

Course Design
1. Nanocatalyst
2. 2-D layered Nanomaterials
3. Quantum Mechanics 

 

Website: http://www.ranjitcmslab.com 

 

Email: ranjit.t@res.srmuniv.ac.in,
Telephone: +91-44-2741-7918
Fax: +91-44-2745-6702
SRM-HPCC
Website: http://www.ranjitcmslab.com

 

Opening for JRF position under SERB-EMR funded project, please click the link for more detail

http://www.srmuniv.ac.in/careers/faculty/jrf-dst-serb-nanotech-2017