
Dr. N V R VIKRAM GELLI
Asst. Professor, Dept. of ECE

Vignan’s Foundation for Science, Technology and Research
Professional Overview
Dedicated Assistant Professor focused on research and teaching with professional experience of 7+ years. Striving for excellence in multidisciplinary research and teaching. Inclined towards developing new courses and activities to expand learning opportunities and in disbursing conceptual knowledge to the students, through the development of new technologies.
Research Interests
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Thin films, MEMS, Nanotechnology, Nano-mechanics
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Embedded systems, Scientific Instrumentation
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Artificial Intelligence, Machine learning
+919482840480
Vadlamudi, Guntur, Andhra Pradesh, India-560064
Education
Ph.D., Mechanical Engineering, Center for Nano Science and Engineering (2008-2016)
Indian Institute of Science, Bangalore
Thesis Title: Influence of contact stresses on shape recovery in sputter-deposited NiTiCu thin films
Advisors: Prof. M. S. Bobji (Department of Mechanical Engineering (ME)), Prof. S. Mohan (Instrumentation (IN)/Center for Nano Science and Engineering (CeNSE))
M. Tech, Nanotechnology (2006-2008)
Andhra University College of Engineering (A) (AUCE (A)), Visakhapatnam
Project: CeO2 Thin Films as High-K Gate Dielectrics for VLSI Applications
B. Tech, Electronics and Communication Engineering (2002-2006)
Sasi Institute of Technology and Engineering (affiliated to J.N.T.U), Tadepalligudem
Project: Pick and Place Robot
Teaching Experience (5Y-5M, 4Y 10M – Post-Ph.D.)
Asst. Professor, Department of Electronics and Communication Engineering
Vignan University, Vadlamudi, Guntur (July 2017 – till date)
Asst. Professor, Department of Electronics and Communication Engineering,
Nitte Meenakshi Institute of Technology, Bangalore (January 2016 – June 2017)
Subjects taught
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MEMS for UG and PG, Entrepreneurship and IPR, Digital Electronics, Embedded systems, Automotive electronics, Multimedia communication, Embedded Systems & RTOS, Microcontrollers for Embedded Systems, Embedded System Design using FPGA
Students’ guidance and training (Broad areas)
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Thin films, Tree climbing robot, Coconut harvesting robot, Embedded Systems, Instrumentation, MEMS
Research Experience (12Y 6M– total, 7Y 6M - other than Ph.D.,
4Y 7M– post-Ph.D.)

Academic researcher (2016-till date)
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Design, development of tree climbing robot
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Deposition and characterization of Pulsed DC sputtered thin films (NiTi, TiN)
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Fabrication and characterization of MEMS devices using thin films
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Design and development of low-cost temperature-dependent four-probe resistivity measurement system
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Funded through TEQIP-seed money
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Design and development of high voltage amplifier for piezo driver applications
Ph.D. Guidance
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Mohammad Taj – MEMS (2Y 1M, 1-Journal (submitted), 1-Conference)
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Kota Rahim Reddy – Video analytics (Part-time, Literature survey)
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M. Deepti – Application of deep learning algorithms for medical image processing (Part-time, just joined)
Senior Research fellow (RBCCPS) (2013-2015)
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Development of simulation environment with active feedback for epidural procedures
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Development and testing of electronics for the feedback and control
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Development of a physics-based model for the tissue needle interaction using OpenGL and haptics
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Design and development of high voltage amplifier
Research student (2008-2013)
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Design, installation, and complete diagnosis of vacuum system using a residual gas analyzer
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Deposition of thin films (NiTiCu) using sputtering from elemental, mosaic target systems
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Fabrication of samples and structures using Focused Ion Beam(FIB) for transmission electron microscope (TEM) analysis and cross-sectional analysis(trained at Sheffield University, UK and CeNSE, IISc, Bangalore)
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Study of mechanical properties of thin films using nanoindentation and analysis using atomic force microscope (AFM), scanning electron microscope (SEM) micrographs of the indents to correlate the structure and properties
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Shape recovery properties of NiTiCu thin films after heating were evaluated by correlating the AFM and SEM micrographs of the nanoindenter, which were relocated precisely, before and after heating the thin films for shape recovery
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Analysis of AFM and SEM micrographs of the nanoindenter was carried out using MATLAB to obtain the amount of shape recovery
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Development of experimental setup for electric contact resistance (ECR) measurement at low loads
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Characterization of ECR of thin films at various loads applied using a conductive diamond tip
M.Tech. (2006-2008), AUCE (A)
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Electrical characterization of thin films for VLSI applications (carried out at IISc)
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Fabrication of nanomaterials using ball milling
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The corrosion resistance of aluminum alloys
Journals

Published
Sudipta Dutta, N V R Vikram Gelli, M S Bobji, Tabletop experimental setup for electrical contact resistance measurement during indentation, Measurement (ISSN 0263-2241), 1‑Feb‑2020, 152, 107286, (Impact factor 3.364), DOI: 10.1016/j.measurement.2019.107286
Vemuri Raghavendra, B Suryanarayana, K Chandra Mouli, P. V Achary, G. N. V. R Vikram, N Murali, Dielectric and Piezoelectric Properties of Sm3+ rare-earth ion-doped lead barium niobate (PBN) ceramics, Physica B: Condensed Matter (ISSN 0921-4526), 1‑Mar‑2019, 556, 75-81, (Impact factor 1.902), DOI: 10.1016/j.physb.2018.11.066
Jithin M A, Lakshmi Ganapathi Kolla, N V R Vikram Gelli, N K Udayashankar, S Mohan, Deposition and characterization of Titanium nitride thin films using pulsed dc magnetron sputtering for localized heat application in MEMS devices, Sensors & Actuators: A. Physical (ISSN 0924-4247), 1-Apr-2018, 272, 199-205, (Impact factor 2.904), DOI: 10.1016/j.sna.2017.12.066
N. V. R. Vikram Gelli, M. S. Bobji, and S. Mohan. Effect of contact stresses on shape recovery of NiTiCu thin films. Thin Solid Films (ISSN 0040-6090), 1-Aug- 2014, 564(0), 306–313, (Impact factor 2.03), DOI: 10.1016/j.tsf.2014.04.088
Patents Granted
Mandava Ravi Kumar, Nandure Narayana Rao, G N V R Vikram, A novel climbing mechanism for coconut tree, Patent granted by IP Australia, on 09-06-2021
In Processing
Mohammad Taj, NVR Vikram G, Nithya G, Veda Sandeep Nagaraja, DESIGN, SIMULATION and ANALYSIS OF MEMS BASED MULTI-DIRECTIONAL INERTIAL SENSOR (Accepted)
M.Deepthi, G.N.V.R.Vikram, Venkatappareddy, A Chebyshev Polynomial Based Activation Function In CNN Model For Classification (Communicated)
N. V. R. Vikram Gelli, Prasanth Pendyala, Mathematical analysis of Surface characteristics of NiTiCu thin films,
N. V. R. Vikram G, Low cost temperature-dependent resistivity measurement system (Patent Applied)
N. V. R. Vikram Gelli, M. S. Bobji, and S. Mohan, Effect of nodular growth on the mechanical properties of NiTiCu thin films
N V R Vikram Gelli, Jithin M A, N K Udayashankar, S Mohan, Correlation of structural and mechanical DC & PDC deposition of NiTi thin films
Conferences/Symposium Proceedings
G N V R Vikram, M A Jithin, S Mohan, and M.S. Bobji, Development of temperature dependent resistivity measurement system, INCAM 2019 Conference, 3-5 July 2019, IISc Bangalore
Mohammad Taj, N V R Vikram G, A review on MEMS-Based Energy Harvesters for IoT Applications, International Journal of Recent Technology and Engineering, 2019, 7, 554,433-436, (B Impact factor 5.92)
Design and Simulation of Mems Based Multi-Directional Inertial Sensor, Mohammad Taj, Dr. N. V. R. Vikram G (corresponding author), Dr. Veda Sandeep Nagaraja, ISSS National Conference on MEMS, Smart Materials, Structures and Systems, October 4-6, 2018, Madurai
Vemuri Raghavendra, B. Suryanarayana, K. Chandra Mouli, P V Achary, G N V R Vikram, Synthesis, Structural and Dielectric Studies of PBN Ceramics, A.P Science Congress-2017, November 7-11, 2017 Visakhapatnam.
Nodular Growth and their Influence on the Hardness of Sputter Deposited NiTiCu Thin Films: N. V. R. Vikram G., M.S. Bobji and S. Mohan, Nanoyantrika 2015, September 20-22, 2015, Trivandrum.
Mosaic Target Co-sputtering System for Deposition of SMA Films;H.S. Vijaya, Jithin M.A., N. V. R. Vikram G., Sudhir Kumar Sharma and S. Mohan; National Symposium on Instrumentation (NSI-35) at VTU Belgaun, January 7-9, 2011. SL Number 91.
Sudhir Kumar Sharma, N.V.R. Vikram G., Kunal Bose., M.S. Bobji and S. Mohan; Sputter Deposited Ti-Rich NiTi Shape Memory Alloy Thin Films: Variation of Hardness with Deposition and Annealing Temperature; Nanomeasure 2010 at Krakow, Poland, 2010, PP-47, Jun 03- 04,.
References
Prof. M. S. Bobji
Professor,
Department of Mechanical engineering
Indian Institute of Science, Bangalore, India
E-mail: bobji@mecheng.iisc.ac.in,
Phone: (O) +91-80-22933233 (M) +91-9886106433
Prof. S. Mohan
Visiting Professor
Centre for Nano Science and Engineering
(Former: Professor, Dept. of Instrumentation & Applied Physics)
Indian Institute of Science, Bangalore, India
E-mail: smohan46@yahoo.co.in
Phone: +91-80-23601143 (M) +91-9845451270
Prof. Kotipalli Srinivasa Rao
Professor
Department of Metallurgical Engineering
Andhra University College of Engineering (A)
Visakhapatnam – 530003
E-mail: arunaraok@yahoo.com, arunaraok@gmail.com
Phone: (O) +91-891-2844971 / 65 (M) +91-9866596714