People

V. Divakar Botcha

Divakar Botcha

Position:Senior researcher

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Dr. V. Divakar Botcha was recently appointed as a Senior researcher at BioSense Institute. He received his Ph.D. in 2016 at the Indian Institute of Technology Bombay (IIT Bombay), India, in the field of 2D materials & semiconductor nanocomposites, and their optoelectronic applications. During his doctorate, he developed a novel technique with a low-cost, energy-efficient, and scalable method for the transfer of GO/RGO monolayer sheets from the air-water interface to solid substrates. He did his postdoc on advanced 2D TMD materials and fabricated many photodetector devices at Shenzhen University, China, and he also developed various photonic structures where he worked as a senior scientist in a Photonics center (cleanroom), in China, after his postdoc. During this job, he was a facility in charge of High-resolution electron beam lithography (EBL) (models: EBPG-5150, Raith pioneer Two) and taught device fabrication processes such as layout design, development, fabrication process, safety protocol, maintaining 100 and 5000 cleanrooms, etc. during the sampling process for UG and PG students, researchers, and some associated companies. His current scientific interests are in the field of growth and fabrication of 2D-based nanodevices. Before joining here, he also worked as a Senior R&D engineer in PROGNOMICS Ltd in the UK and developed Multiplex graphene-based FET sensors for cardiac biomarkers and milk allergen detection. He has over 8 years of experience in cleanrooms, handling many fabrication tools. He has authored and co-authored over 30 scientific publications and one patent, cited over 495 times with an H-index of 13 and an i10 index of 16. He is also a reviewer and speaker for various journals and conferences.

 

Center:

CST

CST

Publications:

  1. Liu, J. Zhou, Z. Jiang, Z. Huang, B. Li, Z. Ma, Y. Yang, Y. Huang, Y. Zhang, V. Divakar Botcha, R. Chung, J. Liang, X. Li, Y. Li, W. He, Monolayer Mo1-x–yRexWyS2 Based Photodetectors Grown by Chemical Vapor Deposition, Adv. Electron. Mater., 2300711, 2023. (IF: 7.633)
  2. Y Lin, X Wang, Z Lin, X Li, Z Zhong, V D Botcha, X Liu, Optimization engineering of ReS2 photodetector by enhanced light scattering effects based on patterned substrates, Alloy. Comp. 966 171538, 2023. (IF: 6.371)
  3. X Liu, J Zhou, J Luo, H Shi, T You, X Ou, V Divakar Botcha, F Mu, T Suga, X Wang, S Huang, ReS2 on GaN photodetector using H+ ion-cut technology, ACS Omega, 8, 1, 457–463, 2023 (IF: 4.132)
  4. X Liu, J Wang, Y Lin, J Zhou, Q Liu, W Yu, Y Cai, X Li, V Divakar Botcha, T Rao, S Huang, Synthesis of Rhenium-Doped Molybdenum Sulfide by Atmospheric Pressure Chemical Vapor Deposition (CVD) for a High-Performance Photodetector, ACS Omega, 7, 51, 48301– 48309, 2022 (IF: 4.132)
  5. X Liu, X Deng, X Li, HC Chiu, Y Chen, V Divakar Botcha, M Wang, W Yu, CH Lin, Impact of Al2O3 stress liner on two-dimensional SnS2 nanosheet for photodetector application, Alloy. Comp. 830 154716, 2020. (IF: 6.371)
  6. X Liu, S Hu, Y Hong, Z Li, J Luo, K Li, L Song, Y Zhang, U Younis and V Divakar Botcha* (*Corresponding author), Growth of necklace-like In2Se3 nanowires using MoS2 seed layer during PVD method, Journal of Crystal Growth 526, 125215, 2019. (IF: 1.830)
  7. Pavan Narayanam, V Divakar Botcha, M Ghosh and S. S. Major, Growth and photocatalytic behavior of transparent reduced GO–ZnO nanocomposite sheets, Nanotechnology 30 (48), 485601, 2019. (IF: 3.953)
  8. X Liu, K Li, X Sun, Z Shi, Z Huang, Z Li, L Min, V Divakar Botcha, X Chen, X Xu and D Li, Modified band alignment at multilayer MoS2/Al2O3 heterojunctions by nitridation treatment, Alloy. Comp. 793, 599-603, 2019. (IF: 6.371)
  9. X Liu, Z Li, L Min, Y Peng, X Xiong, Y Lu, JP Ao, J Fang, W He, K Li, J Wu, W Mao, U Younis and V Divakar Botcha*, Effect of stress layer on thermal properties of SnSe2 few layers, Alloy. Comp. 783, 226-231, 2019. (IF: 6.371)
  10. X Liu, Y Hong, Z Li, C Xu, W He, U Younis, Q Liu, J Wu, Y Lu, Divakar Botcha*, Enhanced thermal conductivity of MoS2/InSe-nanoparticles/MoS2 hybrid sandwich structure, J. Alloy. Comp. 777, 1145-1151, 2019. (IF: 6.371)
  11. Divakar Botcha, Y Hong, Z Huang, Z Li, Q Liu, J Wu, Y Lu, X Liu Growth and thermal properties of various In2Se3 nanostructures prepared by single step PVD technique, J. Alloy. Comp. 773, 698-705, 2019. (IF: 6.371)
  12. A Sourav, Z Li, Z Huang, Divakar Botcha, C Hu, JP Ao, Y Peng, HC Kuo, J Wu, X Liu, KW Ang, Large‐Scale Transparent Molybdenum Disulfide Plasmonic Photodetector Using Split Bull Eye Structure. Adv. Optical Mater. 6 (20), 1800461, 2018. (IF: 10.05)
  13. PK Narayanam, P Soni, Divakar Botcha, G Singh, SS Major, Transparent and Hydrophobic “Reduced Graphene Oxide–Titanium Dioxide” Nanocomposites for Nonwetting Device Applications, ACS Applied Nano Materials 1 (10), 5691-5701, 2018. (IF: 6.14)
  14. Divakar Botcha, DS Sutar, SS Major, Study of GO-Cu2O and RGO-Cu nanocomposite monolayer sheets prepared by modified Langmuir Blodgett route, Journal of Physics and Chemistry of Solids 118, 158-165, 2018. (IF: 4.383)
  15. H Gu, L Chen, Y Lu, F Tian, Z Zhang, K Xu, J Wu, Divakar Botcha, K Li, X Liu, Low-temperature study of neutral and charged excitons in the large-area monolayer WS2, Japanese Journal of Applied Physics 57 (6), 060309, 2018. (IF: 1.491).
  16. Divakar Botcha, M Zhang, K Li, H Gu, Z Huang, J Cai, Y Lu, W Yu, X Liu, High-K substrate effect on thermal properties of 2D InSe few-layer, J. Alloy. Comp. 735, 594-599, 2018. (IF: 6.371)
  17. Divakar Botcha, Gulbagh Singh, Pavan K. Narayanam, S. S. Talwar, R. S. Srinivasa and S. S. Major, A ‘modified’ Langmuir-Blodgett technique for the deposition of graphene oxide monolayer sheets, Mater. Res. Express, 3 (2016) 035002. (IF: 2.025)
  18. Gulbagh Singh, Divakar Botcha, D. S. Sutar, S. S. Talwar, R. S. Srinivasa and S.S. Major, Graphite Mediated Reduction of Graphene Oxide Monolayer Sheets, Carbon 95 (2015) 843-851. (IF: 11.307)
  19. V. Divakar Botcha, Pavan Narayanam, Gulbagh Singh, S. S. Talwar, R. S. Srinivasa and S. S. Major, Effect of Substrate and Subphase Conditions on the Surface Morphology of Graphene Oxide Sheets Prepared by Langmuir-Blodgett Technique, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 452 (2014) 65. (IF: 5.518)
  20. Gulbagh Singh , Divakar Botcha, D. S. Sutar, Pavan K. Narayanam, S. S. Talwar, R. S. Srinivasa, and S.S. Major, Near room temperature reduction of graphene oxide Langmuir- Blodgett monolayers by hydrogen plasma, Phys. Chem. Chem. Phys., 16 (2014) 11708. (IF: 3.676)
  21. Gulbagh Singh, S. Sutar, V. Divakar Botcha, Pavan K. Narayanam, S.S. Talwar, R.S. Srinivasa and S.S. Major, Study of simultaneous reduction and nitrogen doping of graphene oxide Langmuir–Blodgett monolayer sheets by ammonia plasma treatment, Nanotechnology, 24 (2013) 355704. (IF: 3.953)
  22. S. Sutar, Gulbagh Singh, and V. Divakar Botcha, Electronic structure of graphene oxide and reduced graphene oxide monolayers, Applied Physics Letters, 101 (2012) 103103. (IF: 3.971)
  23. Pavan Narayanam, Gulbagh Singh, V. Divakar Botcha, D. S. Sutar, S. S. Talwar, R. S. Srinivasa and S. S. Major, Growth of CdS nanocrystallites on graphene oxide Langmuir- Blodgett monolayers, Nanotechnology, 23 (2012) 325605. (IF: 3.953)
  24. S. Sutar, Pavan K. Narayanam, Gulbagh Singh, V. Divakar Botcha, S. S. Talwar, R. S. Srinivasa and S. S. Major, Spectroscopic studies of large sheets of graphene oxide and reduced graphene oxide monolayers prepared by Langmuir-Blodgett technique, Thin Solid Films, 520 (2012) 5991. (IF: 2.358).

Patents

  1. Divakar Botcha, Gulbagh Singh, Pavan K. Narayanam, R. S. Srinivasa and S. S. Major, A Process for Transferring Graphene Oxide Monolayer Sheets on Substrates. Published in the Indian Patent No. 311986, Granted Date: 30 April 2019.