VK

V. V. Siva Kumar

Also known as: V. V. S. Kumar

Inter-University Accelerator Centre, Jawaharlal Nehru University, Jawaharlal Nehru Technological University, Hyderabad

ORCID iD 0000-0001-6606-6334
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About

Previous works involved development of thin film deposition systems using rf, dc sputtering and ECR-CVD techniques and in conducting research work using them. Performed research work using the systems which focused on growth of wide and ultrawide bandgap nanostructured thin films such as ZnO, ZnO-Ag, nc ZnO-SiOx, SnO2, Zn2SiO4-SiOx and nano-diamond material. Results include increase in photocurrent by 3-4 orders of magnitude under DUV light illumination and decrease in dark current by 2-4 order of magnitude due to ion irradiation. Was also involved in collaboration works with university faculty members on materials grown using rf sputtering, dc sputtering and ball milling systems and their ion irradiation induced modifications. Also, mentored students of IUAC Summer Project Programme for B.Sc. (Physics) Students (7), M Sc Orientation Programme students (2) and final semester projects of M.Sc/M.Tech students (3).

Involved in ion beam related materials science research in collaboration with university users. The research interests are on ion beam induced modification of nanocrystalline materials having gas, humidity, optical sensor applications.

The different research works resulted in ~ 60 publications in refereed journals and received 728 citations with an h-index of 17. Performed ~ 135 reviews for ~ 35 reputed journals published by IOP Publishing, Elsevier, Nature Publishing group, Annex publishers and World Scientific publishers.

Local organizing committee member of SHIMEC (2010, 2012, 2014) and IBMEC (2016, 2018, 2020 (online), 2022, 2024) International Conferences and Materials Science Schools, Workshops organized at IUAC, New Delhi.
Oral presentation in IVSNS-1997, BARC, Mumbai.
Oral presentation in IVSNS-2001, IISc Bangalore.
Oral presentation in NSPMEOD-2002, JNV University, Jodhpur.
Poster presentation in DAE-SSPS-2002, Chandigarh.
Poster presentation in DAE-SSPS-2003, Gwalior.
Poster presentation in DAE-SSPS-2009, Mumbal.
Oral presentation in ICNN-2011, Delhi University.
Oral presentation in ICNN-2013, BBAU, Lucknow.
Oral presentation titled "Synthesis of nanocomposite diamond/amorphous carbon films using Bias enhanced ECR CVD" at ICNIB-2015, Agra.
Invited talk titled "Synthesis and modifications in nanostructured metal oxide thin films using energetic ions" at ICNIB-2021, Bhubaneswar.
Talk titled" Energetic ions for synthesis and modification of thin films", at STF-2025, Nov 12-14, New Delhi.
Done teaching of the course module on "Properties of Solids". 2023, 2024, 2025.
Was Convenor of School-cum-Workshop on "Ion Beams in Sensor Development, 07-09, September, 2021.
Was Jt.Convenor of Workshop on " Ion Beams in Energy Materials", August 06-07, 2024.
Was Chairman of Workshop on "Ion Beams in Optoelectronic Materials and Sensor Applications", August 12-13, 2025.
Was Chairman of "School on Thin Films", November 12-14, 2025.
Was session chair for 8 sessions in different Workshops/Schools.
Member of Research Advisory Committee for 3 PhD scholars.
Evaluation of thesis of 1 research scholar.


Scopus Author ID is : 55504190400,
Mendeley account : https://www.mendeley.com/profiles/v-v-siva-kumar/
Publons identifier : publons.com/a/1197042/.
World of Science Researcher ID: AFP-0072-2022, www.webofscience.com/wos/author/record/AFP-0072-2022.

Employment

  • Inter-University Accelerator Centre SCIENTIST ' G '
    1994 - Present

Education

  • Jawaharlal Nehru University Ph.D
    2010 - 2018
  • Jawaharlal Nehru Technological University, Hyderabad M.Sc
    1991 - 1993

Projects & Funding

Projects & funding information is unavailable.

Publications (63)