MSc (Gauhati) PhD (IIT, Bombay)
Nanoelectronics and Nanotechnology
Department of Physics
Gauhati University, Guwahati, 781014
Email: hemenkalita[at]gauhati[dot]ac[dot]in
Receiving the Young Scientist Award of Assam from Hon'ble Minister of Education of India 'Shri Dharmendra Pradhan' and Hon'ble Chief Minister of Assam 'Dr. Himanta Biswa Sarma'
Educational Qualification:
Research Associate, Jan 2016 - July 2016, Dept. of Physics, IIT Bombay
Ph.D., 2016, Dept. of Physics, IIT Bombay
M. Sc. in Physics, 2008, Gauhati University
B. Sc. in Physics, 2006, B. Borooah College
1. ‘Young Scientist Award’ of Assam 2020 in the Assam State Awards for Scientific Excellence -2020 given by the Science & Technology Department, Govt. of Assam.
(This award was given by the Hon'ble Minister of Education, India 'Shri Dharmendra Pradhan' and the Hon'ble Chief Minister of Assam 'Dr. Himanta Biswa Sarma')
2. DST, Govt. of India highlighted his work on ‘Formalin Sensor’ on their website as a success story., 2023
3. Early Career Research (ECRA) Award by DST-SERB, Govt of India in 2018.
4. The Times of India (TOI) highlighted the research work on Formalin sensors in 2024.
5. Hindustan Times highlighted the research work on Low-cost soil moisture sensors in 2019.
6. UGC-BSR Research Start-Up grant by UGC, Govt of India in 2017.
7. Qualified CSIR-UGC NET in June 2009 with AIR-50 in Physical Sciences.
8. Qualified GATE-2009 with AIR-337 and percentile-93.72 in Physical Sciences.
9. Ministry of Human Resource Development (MHRD) fellowship from Govt. of India while pursuing PhD degree at IIT Bombay from Jan 2010- Dec 2015.
10. 1st class in M.Sc. (Rank-2)
11. 2nd prize in Quiz competition in International Year of Physics (IYP), IIT Guwahati. (Awarded by Director, IITG)
12. 3rd prize in the Essay competition in International Year of Physics (IYP), Gauhati University.
Patent Granted:
1. Hemen Kalita, M. Aslam, ‘Filter adsorbent’ INDIAN PATENT (IPA No. 1626/MUM/2015)
2. Hemen Kalita, Vinay S Palaparthy, Maryam Shojaei Baghini, M. Aslam, ‘Soil Moisture Sensor Based on Electrochemically Synthesized Graphene Quantum Dots’ INDIAN PATENT (IPA No.2796/MUM/2015)
3. Hemen Kalita, Jeotikanta Mohapatra, Arijit Mitra, D. Bahadur and M. Aslam, ‘Method of synthesis of monodispersed graphene quantum dots’ INDIAN PATENT (IPA No. 2476/MUM/2015)
4. Hemen Kalita, V. Palaparthy, M. S. Baghini, M. Aslam, Capacitive based graphene soil moisture sensor’. (E-11/88/2016/MUM)
5. Rajesh Ghosh, Anurag Kashyap, Hemen Kalita, A facile heating method for the preparation of vertically oriented graphene nanosheets, 2022, (Application No. 202131061109)
Patent filed:
6. Hemen Kalita, Rajesh Ghosh, , A method of production of graphene paper from graphene oxide solution without using any additives, 2023, (Application No.: 202331066331)
7. Hemen Kalita, V. Palaparthy, M. S. Baghini, M. Aslam, Method for synthesis of graphene quantum dots'. (IPA No. TEMP/E-1/46254/2018-MUM)
8. S. Siddique, V. Palaparthy, Hemen Kalita, M. S. Baghini, M. Aslam, Method to fabricate graphene oxide based array sensing probe for monitoring in-depth soil moisture'. (IPA No. E-11/165/2019/MUM)
23. B. Dehingia, R. Lahkar, Hemen Kalita, Efficient removal of both cationic and anionic dyes from water using a single rGO/PSS nanocomposite membrane with superior permeability and high aqueous stability. (2024) Journal of Environmental Chemical Engineering. (As Corresponding Author) Impact factor: 7.7
22. R. Ghosh, M. S. Siddiqui, Hemen Kalita, One-step facile and novel method for the growth of vertical graphene oxide and its potential application in infrared sensing, (2024), Carbon trends. (As Corresponding Author)
21. A Kashyap, B Chakraborty, MS Siddiqui, H Tyagi, Hemen Kalita, Selective and Sensitive Detection of Formaldehyde at Room Temperature by Tin Oxide Nanoparticles/Reduced Graphene Oxide Composite, (2023) ACS Applied Nano Materials (As Corresponding Author) Impact factor: 6.14
20. Biswajit Dehingia, Hemen Kalita, Facile, cost-effective and mechanically stable graphene-melamine sponge for efficient oil/water separation with enhanced recyclability, 2023, Process Safety and Environmental Protection. Impact factor: 7.926 (As Corresponding Author)
19. Rajesh Ghosh, Hemen Kalita, One-step facile and novel method for the growth of vertical graphene oxide and its potential application in infrared sensing, 2022, Carbon trends. (As Corresponding Author)
18. K. Patle, B. Dehingia, Hemen Kalita, V. Palaparthy, Highly Sensitive Graphene Oxide Leaf Wetness Sensor for Disease Supervision on Medicinal Plants, 2022, Computers and Electronics in Agriculture, Impact factor: 6.8 (As Corresponding Author)
17. H. Banik. S. Sarkar, F. Rahman, Hemen Kalita, D. Bhattacharjee, S. Hussain, RRAM and WORM memory devices using Protamine Sulfate and Graphene Oxide (2022), Material Today: Proceedings
16. M. S. Siddiqui, A. Mandal, Hemen Kalita, M. Aslam, Highly sensitive few layers MoS2 nanosheets as a stable soil moisture and humidity sensor. (2022) Sensors & Actuators B: Chemical. Impact factor: 9.221
15. R. Ghosh, M. Aslam, Hemen Kalita, Graphene derivatives for chemisresistive gas sensors: A review. (2022) Materials Today Communications. Impact factor: 3.31 (As Corresponding Author)
14. M. S. Siddiqui, V. Palaparthy, Hemen Kalita, M. S. Baghini, M. Aslam, Graphene oxide array for in-depth soil moisture sensing toward optimized irrigation. (2020) ACS Applied Electronics Materials. Impact factor: 4.494
13. Hemen Kalita, V. Palaparthy, M. S. Baghini, Electrochemical synthesis of graphene quantum dots from graphene oxide at room temperature and its soil moisture sensing properties. (2020) Carbon. (As Corresponding Author) Impact factor: 11.304
12. Hemen Kalita, Himanshu Tyagi, M. Aslam, Surface tailored graphene oxide paper: An efficient filter for dye pollutants. (2020) Environmental Science: Water research & Technology. (As Corresponding Author) Impact factor: 5.819
11. Hemen Kalita, V. Palaparthy, M. S. Baghini, M. Aslam, Graphene oxide based soil moisture sensor for in situ agriculture applications. (2018) Sensors & Actuators B: Chemical. Impact factor: 9.221
10. F. J, Sonia, Hemen Kalita, M. Aslam, M. A. Mukhopadhyay, Correlations between preparation methods, structural features and electrochemical Li-storage behavior of reduced graphene oxide. (2017) Nanoscale. Impact factor: 7.79
9. H. Tyagi, T. Khan, J. Mohapatra, A. Mitra, Hemen Kalita, M. Aslam, The exclusive response of LSPR in uncapped gold nanoparticles towards silver ions and gold chloride ions. (2016) RSC Advances. Impact factor: 3.36
8. Hemen Kalita, V. Palaparthy, M. S. Baghini, M. Aslam, Graphene quantum dot soil moisture sensor. (2016) Sensors & Actuators B: Chemical. Impact factor: 9.221
7. Hemen Kalita, J. Mohapatra, A. Mitra, D. Bahadur, M. Aslam, Efficient synthesis of rice based graphene quantum dots and their fluorescent properties. (2016) RSC Advances. Impact factor: 3.36
6. Hemen Kalita, Harikrishnan V, M. Aslam, ‘Field Effect Transport Properties of Chemically Treated Graphene Quantum Dots’ (2014) International Journal of Nanotechnology. Impact factor: 1.80.
5. J Debgupta, S Mandal, Hemen Kalita, A Patra, M Aslam, K Vijayamohanan, Photophysical and photoconductivity properties of thiol functionalized graphene-CdSe QD composites, (2014) RSC Advances. Impact factor: 3.36
4. Abhishek Misra, Hemen Kalita, and Anil Kottantharayil, ‘Work Function Modulation and Thermal Stability of Reduced Graphene Oxide Gate Electrodes in MOS Devices’ (2013) ACS Applied Materials and Interfaces. Impact factor: 9.229
3. Hemen Kalita, Harikrishnan V, Dhanraj B. Shinde, Vijayamohanan K. Pillai, M. Aslam, “Hysteresis and charge trapping in graphene quantum dots” (2013) Applied Physics Letters. Impact factor: 3.791
2. Abhishek Misra, A Janardanan, Hemen Kalita, Manali Khare, and Anil Kottantharayil ‘Reduced Multilayer Graphene Oxide Floating Gate Flash Memory With Large Memory Window and Robust Retention Characteristics’,(2013) IEEE Electron Device Letters. Impact factor: 4.5
1. Abhishek Misra, Mayur Waikar, Amit Gour, Hemen Kalita, Manali Khare, Mohammed Aslam and Anil Kottantharayil, “Work function Tuning and Improved Gate Dielectric Reliability with Multilayer Graphene as a Gate Electrode for Metal Oxide Semiconductor Field Effect Device Applications”,(2012) Applied Physics Letters. Impact factor: 3.791
1. M.Sc. Physics Semester I
2. M.Sc. Physics Semester II
3. M.Sc. Physics Semester III
4. M.Sc. Physics Semester IV
5. Pre-PhD Course Work
6. M.Sc. in Radiological Physics (Sem-I Electronics)
7. Teaching Assistantship for B. Tech 1st year Physics Lab course (PH 117) (for 5 semesters) and Nanoscience course (EP-439) for Dual degree students in the Department of Physics, IIT Bombay.
8. Teaching experience as a Lecturer, Department of Physics in 2008-09, B. Borooah College, Guwahati, Assam.
45. Invited speaker as a part of Lecture Series on ‘Recent research and development in Science & Technology’ organized by the Department of Physics, ADP College, 2024.
44. Invited talk as a speaker to deliver a lecture organized by the Dept. of Biotechnology, Gauhati University 2024.
43. Invited talk as a speaker in the ICSM 2024 organized by Dept. of Physics, Tripura University 2024.
42. Invited talk as a speaker on ‘The recent development of Formalin Fish Sensor with Graphene’ 2023 organized by Dept. of EE, Narula Institute of Technology, 2023.
41. Invited speaker as a part of Alumni Lecture Series on ‘The potential of the miracle material of the 21st century – Graphene in the environmental remediation’ organized by Department of Physics, B. Borooah College, 2023.
40. Invitation to deliver a talk on ‘Potential of Nanomaterials in the Environmental Remediation’ in organized by the Department of Chemistry, University of Science & Technology Meghalaya (USTM), 2023.
39. Invitation to deliver a talk in the Current Trends in Physics on ‘The miracle material of the 21st century – ‘Graphene’ : A few recent Innovations’ organized by the Department of Physics, Abhayapuri College, 2023.
38. Invited to deliver a lecture in the Two-day National Seminar on Technology: Reshaping Educational and Economic goals on ‘Recent Innovations for Environmental Applications with the Miracle material-Graphene’ 2023 organized by the Department of Physics, LC Bharali College.
37. Invited talk as a speaker on ‘Recent innovations with graphene at nanoscale’, 2023 organized by Jatiya Vidyalaya.
36. Invited talk as a speaker on “Graphene and its derivatives” in the Indo-Slovenia Joint Workshop 2023 organized by IIT Indore.
35. Invited talk as a speaker on “Graphene derivatives based sensing, monitoring and remediation for environmental applications” at the International Conference on Frontiers in Materials Engineering, 2022 organized by IIT Indore.
34. Invited talk as a speaker on ‘Nanotechnology based Environmental Sensors’ 2022 organized by Dept. of EIE, Narula Institute of Technology, Kolkata.
33. Invited to deliver a lecture in the One-week Training Program on "Opportunities for research and Innovation using the DST-sponsored facilities of Tezpur University" 2022 organized by the Department of Physics, Tezpur University under the DST-STUTI program.
32. Invited to deliver a Popular Talk in Orientation program by the Dept. of Physics, University of Meghalaya (USTM), 2022.
31. Invited to deliver a lecture in the One-week Training Program on "Opportunities for research and Innovation using the DST-sponsored facilities of Gauhati University" 2022 organized by the Department of Instrumentation & USIC, Gauhati University under the DST-STUTI program.
30. Invited speaker as a part of the Alumni Lecture Series on 'Recent innovations with the miracle material of the 21st century - Graphene, organized by the Dept. of Physics, B. Borooah College, 2022.
29. Invited speaker for a popular science talk on the occasion of World Environmental Day Celebration 2022 organized by Maharishi Vidya Mandir Sr. Secondary School, Guwahati.
28. Invited speaker in the webinar on 'Novel material graphene and its application' 2022 organized by the Dept of Physics, Royal Global University.
27. Invited to deliver a lecture in the One-week Training Program on "Opportunities for research and Innovation using the DST-sponsored facilities of Gauhati University" 2022 organized by the Department of Instrumentation & USIC, Gauhati University under the DST-STUTI program.
26. Resource person in the World Intellectual property day celebration 2022 organized by Gauhati University (Title: Nanotechnology based prototype for environmental applications).
25. Invited to deliver a talk on “Graphene derivatives for soil moisture sensing applications" as a resource person in the Short term course under AICTE-QIP scheme on Advanced materials on Environmental Sensors 2022 organized by IIT Indore
24. Invited to deliver a talk on the theme “Human capacity development” celebrating “Vigyan Utsav” 2021 as a part of Azadi ka amrit mahotsav organized by Assam Science Technology & Environment Council, DST, Govt. of Assam.
23. Invited to deliver talk on “Different routes of fabricating derivatives of graphene and its characterization” as a resource person in the AICTE ATAL Faculty Development Program FDP on "Progress in Novel two dimensional Materials" 2021 organized by Tripura University.
22. Invited speaker to deliver a talk on “Graphene derivatives for soil moisture sensing applications” in the 1st joint workshop on Environmental cyber physical systems (E-CPS) 2021 organized by Indo-South Korean Join Network Center at IIT Indore.
21. Invited to deliver a talk on “Graphene based derivatives as emerging two-dimensional material and its myriad potential applications" as a resource person in the AICTE ATAL Faculty Development Program FDP on "Novel Materials" 2021 organized by Tripura University.
20. Invited speaker to deliver a talk on “Graphene based derivatives for environmental monitoring and remediation" in a National Conference on Emerging Trends in Physics (NCETP) organized by the Department of Physics, Tezpur University.
19. Invited speaker to deliver a talk on “Next Generation NanoScale Devices” in a week-long Short-term Training Program on Nanotechnology (“AmazingNano-2021”) organized by Centre of Excellence in Nanotechnology and Department of ECE Assam Don Bosco University.
18. Invited speaker in the Student Interaction Program-2021 on ‘Physics and Innovations at Nanoscale’ organized by Dept. of Physics, Rangapara College.
17. Invited speaker in the Webinar on ‘Nanoelectronics and Nanosensors’ 2020 organized by Dept. of EIE, Narula Institute of Technology, Kolkata.
16. Resource person in the Faculty development AICTE Training And Learning (ATAL) Academy Faculty Development Programme (FDP) on Sensor Technology" organized by Department of Physics, Tripura University 2020. (Title: Graphene quantum dots based soil moisture sensor for agricultural applications)
15. Invited speaker in the National E-Conference on Researches In Science & Technology (NCRST-2020) Organized Jointly by Department Of Physics, Women’s College, Agartala & Department Of Physics, Govt. Degree College, Dharmanagar. (Title: Graphene paper: An efficient filter for water pollutants)
14. Resource person in the National Webinar on ‘Nanotechnology: Graphene and its potential applications’ 2020 organized by Dept. of Physics and IQAC, Kokrajhar Govt. College.
13. Innovations at nano scale - Invited speaker at the 27th KVS Regional Level National Science Congress (NCSC) – 2019 held at KV Maligaon.
12. 'Graphene derivatives and its sensing applications' - Invited talk in National Conference on Condensed Matter Physics, CMDAYS 2018, University of Burdwan.
11. 'Basics of IC Fabrication' (2018) - Resource Person for the Sixth School on System Design using Microcontroller, Gauhati University organized by Dept of Instrumentation & USIC, Gauhati University.
10. Graphene - the miracle material, (2018) - Invited speaker in the Alumni Lecture Series, Dept. of Physics, B. Borooah College.
9. Graphene derivatives based humidity and soil mositure micro sensor', (2017) - Invited talk in the Dept of Instrumentation and USIC, Gauhati University.
8. 'Transport and Sensing properties of graphene', (2017) Invited talk in the Dept of Physics, Tripura University.
7. 'Surface tailored graphene oxide membranes as efficient filters for water pollutants', (2017) UGC-SAP National Seminar on Advances in Materials Science, Gauhati University.
6. 'Electronics at nanoscale', (2016) Invited talk Dept. of Physics, Kaliabor College.
5. 'Graphene: a revolution in 2-dimensions', Dept. of Physics, (2016) Gauhati University.
4. 'Graphene based derivatives and their applications', (2015) SYMPHY, Dept of Physics, IIT Bombay.
3. 'Graphene oxide filter papers' (2014) MIT-IITB TCTD workshop, IIT Bombay.
2. 'Graphene, Graphene-oxide and Graphene quantum dots', (2013) Invited talk in the Dept. of Physics, B. Borooah College.
1. 'Humidity sensing properties of graphene quantum dots' (2012), ICEE, Dept of EE, IIT Bombay.
19. Man of the Series in the S. N. Memorial Cricket Tournament (2021), Gauhati University.
18. Gold medal, Cricket, Winner in S. N. Memorial Cricket Tournament (2021), Gauhati University.
17. Silver medal, Cricket, Runner's-up in S. N. Memorial Cricket Tournament (2019), Gauhati University.
16. Silver medal, Cricket, Runner's-up in S. N. Memorial Cricket Tournament (2018), Gauhati University.
15. Gold medal, Cricket, Winner in S. N. Memorial Cricket Tournament (2017), Gauhati University.
14. Sports Color Award, 2015-16, Hostel-14, IIT Bombay.
13. Sports Citation Award, 2014-15, Hostel 14, IIT Bombay.
12. Sports Special Mention Award, 2012-13, Hostel 14, IIT Bombay.
11. POGC (Player of General Championship) in Carrom, 2014-15, IIT Bombay.
10. Gold Medalist in Carrom GC 2011-12, IIT Bombay.
9. Gold Medalist in Carrom GC 2014-15, IIT Bombay.
8. Silver Medalist in Carrom GC 2015-16, IIT Bombay
7. Bronze medal in Cricket PG sports 2012, IIT Bombay.
6. Bronze medal in Carrom PG Sports 2011-12, IIT Bombay.
5. Bronze medal in Carrom PG Sports 2012-13, IIT Bombay.
4. Bronze medal in TT PG Sports 2012-13, IIT Bombay.
3. Guiness book of world record for Rubik’s cube
2. Limca book of world record for Rubik’s cube.
1. Certificate of appreciation for participating PG-Cult 2016, IIT Bombay
Nanomaterials and Nanoelectronics laboratory (NAMONICS)
Group Leader: Dr. Hemen Kumar Kalita
PhD Students:
1. Rajesh Ghosh (CSIR-UGC JRF)
Joined: July 2018
2. Biswajit Dehengia (DST-Inspire)
Joined: July 2018
3. Anurag Kashyap (DST-SERB Fellow)
Joined: July 2019
4. Rajnandan Lahkar (DST-Inspire)
Joined: Feb 2022
5. Hrishikesh Sarma (JRF- ISRO project)
Joined April 2022
Research Interests
2-D materials especially graphene and related devices
Design and growth of nanomaterials/thin films
Optical and transport properties of graphene and its derivatives
Graphene based humidity, soil moisture and chemical sensors
Nanomaterials for waste water treatment and water filtration
Sponsored Research Projects
1. Early Career Research grant by SERB.
2. UGC-BSR Research Start-Up grant.
3. Innovation, Technology Generation and Awareness (ITGA) project funded by S&T division ASTEC.
4. Young faculty project grant under the 'Scheme for Promoting Research among Young Faculties'.
5. Research & Development programme project funded by S&T division ASTEC.
6. Collaborative member in the Joint Network Centre: Indo-South Korea joint project funded by DST, Govt. of India. (2021-2024)
7. RAC-S project funded by ISRO, Govt. of India. (2021-2024)
8. Promotion of University Research and Scientific Excellence (PURSE) project (As Co-PI) (2023-2027)
1. Hemen Kalita, A. Kashyap, B. Dehingia, R. Ghosh, Flexible and wearable chemical sensor based on graphene derivatives, Springer Nature, 2024
2. Hemen Kalita, B. Dehingia, R. Ghosh, A Ojha, A. K Kushwaha, Graphene and graphene derivatives for wastewater treatment, Resource Recovery in Industrial Waste Waters, 143-163, 2023, Elsevier
3. Rajesh Ghosh, Biswajit Dehingia, Anurag Kashyap, Hemen Kalita*, Green synthesis of graphene nanomaterials towards environmental remediation – A book on selected topics in Physics research, 2021, ISBN: 978-93-90919-64-2
4. Ajay K. Kushwaha*, Hemen Kalita*, Siddhartha Suman, Aditya Bhardwaj and Rajesh Ghosh, Two Dimensional (2D) Thermoelectric Materials, Elsevier (2021) (*corresponding authors)
5. Ajay K. Kushwaha*, Hemen Kalita*, Aditya Bhardwaj, Siddhartha Suman, BiswajitDehingia and Rajneesh Kumar Mishra, Application of Nanotechnology in Detection and Prevention of COVID-19, Springer (2020) (*corresponding authors)
6. Hemen Kalita, ‘Impact of Research on Teaching in Higher Education- Higher Education in India: from Past to Present’, ISBN: 978-93-87263-73-4.