Dr Nilakantha Tripathy

Department:
Humanities and Science
Faculty Id:
VCE 1275
Designation:
Assistant Professor
Years of Experience:
1 year
Employment Status:
Full Time – Ratified by JNTUH
Phone:
08117833619/09438446306

Date of Birth:

20 August, 1990

Areas of Specialization :

Thin films, nanostructures, Semiconducting devices

Qualification

Ph.D in “High-k dielectric thin films and Nanostructures” from National Institute of Technology (NIT), Rourkela.
PG Degree in Physics (Specialization – Material Sciences) from Berhampur University, Odisha

Subjects Taught:

UG – Semiconductor Physics.

Papers Published:

Journals:

1. N. Tripathy, K.C. Das, S.P. Ghosh, D. Pradhan and J.P. Kar “Impact of post-deposition annealing on RF sputtered calcium copper titanate thin film for memory application” Mater. Res. Express 5 074001 (2018).
2. N. Tripathy, S.P. Ghosh, and J.P. Kar, “Transformation of sputtered calcium copper titanate thin film into nanorods by sequential annealing” Ceram. Int. 44 4052 – 4057 (2018).
3. N. Tripathy, K.C. Das, S.P. Ghosh, B. Das, and J.P. Kar, “Effect of RF sputtering power on morphological and electrical properties of calcium copper titanate thin films” J. Mater. Sci. Mater. Electron. 28 [15] 11401 – 11405 (2017).
4. N. Tripathy, K.C. Das, S.P. Ghosh, B. Das, P. Kumar, and J.P. Kar, “Investigation of surface and interface properties of RF sputtered calcium copper titanate thin films on silicon substrate” J. Mater. Sci. Mater. Electron. 28 [3] 2686 – 2690 (2017).
5. K. L. Routray, S. Saha, D. Behera, N. Tripathy, S. P. Ghosh , “High dielectric constant, low loss and efficient visible photoluminescence properties of porous rose- flower shaped CoFe2O4 for photovoltaic application” Mat. Lett. 242 62 – 65 (2019).
6. S. Roy, N. Tripathy, D. Pradhan, P. K. Sahu, and J.P. Kar, “Electrical characteristics of dip coated TiO2 thin films with various withdrawal speeds for resistive switching application” Appl. Surf. Sci. 449 181 – 185 (2018)
7. L. Satish K. Achary, A. Kumar, B. Barik, Pratap S. Nayak, N. Tripathy, J. P. Kar, P. Dash, “Reduced graphene oxide CuFe2O4 nanocomposite: A highly sensitive room temperature NH3 gas sensor” Sensors and Actuators B: Chemical 272 100 – 109 (2018).
8. K. C. Das, N. Tripathy, S. P. Ghosh, S. Mohanta, A. Nakamura and J. P. Kar, “Investigation of microstructural and electrical properties of composition dependent co-sputtered Hf1-xTaxO2 thin films” Mater. Res. Express 4 114007 (2017).
9. K.C. Das, S.P. Ghosh, N. Tripathy, R. Singhal and J.P. Kar, “Modulation of microstructure and interface properties of co-sputter derived Hf1-xTixO2 thin films with various Ti content” J. Mater. Sci. Mater. Electron, 28 [17] 12408 – 12414 (2017).
10. K.C. Das, N. Tripathy, S.P. Ghosh, P. Sharma, R. Singhal and J.P. Kar, “Microstructural, surface and interface properties of zirconium doped HfO2 thin films grown by RF co-sputtering technique” Vacuum, 143 288 – 293 (2017).
11. K.C. Das, S.P. Ghosh, N. Tripathy, D.H. Kim, T.I. Lee, J.M. Myoung, and J.P. Kar, “Evolution of microstructural and electrical properties of sputtered HfO2 ceramic thin films with RF power and substrate temperature,” Ceram. Int., 42 [1] 138 – 145 (2016).
12. S.P. Ghosh, K.C. Das, N. Tripathy, D.H. Kim, T. I Lee, J.M. Myoung, and J.P. Kar, “Morphological evolution of zinc oxide thin films with variation in sputtering power and substrate temperature” Int. J. Microstruct. Mater. Prop., 11 [5] 325 – 338 (2016).
13. S. P. Ghosh, K. C. Das, N. Tripathy, G. Bose, D. H. Kim, T. I. Lee J. M. Myoung and J. P. Kar, “Morphological evolution of sputtered ZnO thin films with variation in RF power and substrate temperature” International Journal of Microstructure and Materials Properties 11 325 – 337 (2016).
14. K.C. Das, S.P. Ghosh, N. Tripathy, G. Bose, A. Ashok, P. Pal, D.H. Kim, T.I. Lee, et al., “Surface and interface studies of RF sputtered HfO2 thin films with working pressure and gas flow ratio” J. Mater. Sci. Electron., 26 [8] 6025 – 6031 (2015).
15. S.P. Ghosh, K.C. Das, N. Tripathy, G. Bose, D.H. Kim, T.I. Lee, J.M. Myoung, and J.P. Kar, “Microstructural evolution of sputtered ZnO thin films with rapid thermal annealing” J. Mater. Sci. Mater. Electron, 26 [10] 7860 – 7866 (2015).

Conference Proceedings:

1. N. Tripathy, S. P. Ghosh, D. Pradhan and J. P. Kar, “Resistive switching behavior of RF sputtered calcium copper titanate thin films with various annealing approach” The 2018 IEEE Electron Device Kolkata Conference (Accepted) (2018)
2. N. Tripathy, K.C. Das, S.P. Ghosh, G. Bose, and J.P. Kar, “Effect of rapid thermal annealing on the structural and electrical properties of RF sputtered CCTO thin film,” IOP Conf. Ser. Mater. Sci. Eng., 178 11001 (2017).
3. N. Tripathy, K.C. Das, S.P. Ghosh, G. Bose, and J.P. Kar, “Fabrication of high-k dielectric Calcium Copper Titanate (CCTO) target by solid state route,” IOP Conf. Ser. Mater. Sci. Eng., 115 12022 (2016).
4. S. Roy, N. Tripathy, P.K. Sahu, JP Kar, “Optical & current-voltage characteristics of dip coated TiO2 thin film” IOP Conf. Ser. Mater. Sci. Eng., 338 012058 (2018).
5. K.C. Das, S.P. Ghosh, N. Tripathy, G. Bose, P. Parhi and J.P. Kar, “Reduction of oxide and interface charge density of reactive sputtered HfO2 thin films by rapid thermal annealing”, AIP Conference Proceedings 1832, 080055 (2017)
6. S.P Ghosh, K.C. Das, N. Tripathy, A. Moharan, A. Adhikari, G. Bose, T. I. Lee, J. M. Myoung and J.P. Kar “Synthesis of copper doped ZnO nano wires with enhanced ultra violet photo response behavior”, IOP Conf. Ser.: Mater. Sci. Eng. 178 012021 (2016).
7. S.P Ghosh, K.C. Das, N. Tripathy, G. Bose, D.H. Kim, T. Lee, J. M. Myoung and J. P. Kar “Influence of working pressure and oxygen Concentration on the Structural and morphological properties of ZnO films”,, IUP Journal of Electrical \& Electronics Engineering, Vol. 9 Issue 2, p85-94. (2016)
8. K.C. Das, S.P. Ghosh, N. Tripathy, G. Bose and J.P. Kar, “Effect of post-deposition annealing on the structural and electrical properties of RF sputtered hafnium oxide thin films”, IOP Conf. Ser.: Mater. Sci. Eng. 115 012015 (2016)
9. S.P Ghosh, K.C. Das, N. Tripathy, G. Bose, D.H. Kim, T. I. Lee, J. M. Myoung and J. P. Kar “Ultraviolet photodection characteristics of ZnO thin films and nanostructures”, IOP Conf. Ser.: Mater. Sci. Eng. 115 012035 (2016)
10. K.C. Das, S.P. Ghosh, N. Tripathy, G. Bose, T.I. Lee, J.M. Myoung and J.P. Kar, “Effect of substrate temperature on structural and electrical properties of RF sputtered hafnium oxide thin films” AIP Conference Proceedings 1665, 080074 (2015)
11. S.P Ghosh, K.C. Das, N. Tripathy, G. Bose, T. I. Lee, J. M. Myoung and J. P. Kar “Morphological and Photoluminescence analysis of Zinc Oxide thin films deposited by RF sputtering at different substrate temperatures”, IOP Conf. Ser.: Mater. Sci. Eng. 75 012023 (2015)

Conferences attended:

1. N. Tripathy, S. P. Ghosh, D. Pradhan and J. P. Kar “Resistive switching behavior of RF sputtered calcium copper titanate thin films with various annealing approach” IEEE Electron Device Kolkata Conference 2018, 24th – 25th November 2018, Kolkata
2. N. Tripathy, K. C. Das, S. P. Ghosh, D. Pradhan and J. P. Kar “Impact of post-deposition annealing on RF sputtered calcium copper titanate thin film for memory application” 4th International conference on Nanoscience and Nanotechnology (ICONN-2017) 9th – 11 August 2017, SRM University, Chennai, India
3. N. Tripathy, K.C. Das, S.P. Ghosh, G. Bose, and J.P. Kar, “Effect of rapid thermal annealing on the structural and electrical properties of RF sputtered CCTO thin film,” National Conference on Processing and Characterization of Materials 9–10 December 2016, NIT Rourkela, Orissa, India.
4. N. Tripathy, K.C. Das, S.P. Ghosh, G. Bose, and J.P. Kar, “Fabrication of high-k dielectric Calcium Copper Titanate (CCTO) target by solid state route,” 4th National Conference on Processing and Characterization of Materials, 5–6 December 2014, Rourkela, India
5. A. Tiwari, N. Tripathy, S.P. Ghosh, K.C. Das and J.P. Kar “Enhancement of photocurrent by surface fictionalization of ZnO nanowire based UV photodetector”,, International conference for multifunctional materials for future application (ICMFA-2015), 27th-29th Oct. 2015, IIT BHU, Varanasi, India p. 133.

 

Books Published:

none

Research Projects Undertaken:

none