Research Department:
Dr. S. Venkataprasad Bhat joined SRM Research Institute in February 2014 and is leading the Green Energy Materials group. Before joining SRM, he has worked as a post-doctoral research associate at Purdue University, USA for 3 years after completing his doctoral studies in materials science at Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore, India. He has experience of working on solution based nanomaterials and fabrication as well as characterization of various optoelectronic devices.
- Optical Properties of Nanomaterials & Polymer Nanocomposites
- Energy Conversion applications (Photocatalysis, Photovoltaics, Solid State Lighting, etc)
- Solution Based Sunthesis of CZTS solar absorbers for thinfilm solar cells
- Rare earth free luminescent materials
Research grants:
- "Solution Processed CZTS-TiO2 heterojunction for solar energy coversion", Early Career Research Award, DST-SERB, as PI, Today Outlay: 30 Lakhs, Duration: 2016-2019
- "Development of Electrode Materials for High Energy Density Lithium ion Batteries and Computational Studies of Solar Absorbser Layers", Ministry of New and Renewable Energy (MNRE), Mega Projects as Co-Pl, Total outlay 11.17 Crores. Duration:2016-2019
Currently the Green Energy Materials group is interested to explore the use of earth abundant semiconductor such as CZTS in energy conversion devices. It is proposed to develop the low cost solution processed CZTS based absorber layer for highly efficient thin film solar cell devices, without using toxic solvents. The nano composites of such visible light absorbers with various n-type metal oxide nanostructures as well as graphene oxide based materials will be prepared and their optical properties will be explored for various energy related applications including photocatalysis. The group is also working on novel rare earth free luminescent materials for solid state lighting applications.
Current members:
Postdoctoral fellows and Research associates:
- None
JRF/PhD Students:
Mr. M.Dhanasekar ,M. Sc in Physics from SRM University, joined as Junior Research Fellow in 2014. He is currently pursuing PhD in Physics. Solar cells and photocatalysts are his major areas of interest. He is currently working on non toxic precursor solutions for thin film solar cells and metal oxide based photocatalysts for dye degradation.
Mr. Vinayak Vitthal Satale,M.Sc. in Physics from Shivaji University, Kolhapur, joined as Junior Research Fellow under the DST –SERB project in 2016. Thin film Solar cells is his major research interest. Currently working on developing solution based CZTS-TiO2 heterojunction for solar energy conversion.
Mr. Sekar Sampath, M. Sc. in Chemistry from Muthuragam Government Arts College, Vellore, joined as Junior Research Fellow. In 2016. Photofunctional Materials is his major research interest. Currently working on rare earth free phosphors such as BCNO for white light emitting application.
M.Sc./M.Tech/B.Tech Project students:
- Nitha Thomas
- Neethu Antony
- Ramakrishna Chitturi
- Prakhar Bhargava.
Alumni:
M.Sc./M.Tech/B.Tech Project students:
- Jenefer.V
- Shinshunshim Hungyo
- Sam Kingston
- Ashwin Agathya
- Moon Paul.
Facilities:
- Laboratory for solution based synthesis and processing of nano materials and thin films.
- UV vis DRS spectrometer
- Flurolog-3 Photoluminescence spectrometer
- Electrical characterization set up.
- S. Venkataprasad Bhat and F. L. Deepak (2005): Tuning the bandgap of ZnO by substitution with Mn2+, Co2+ and Ni2+, In Solid State Communications, 135 (2005) 345.
- S. Venkataprasad Bhat, A. Govindaraj and C. N. R. Rao (2006): Tuning the emission bands of nanophosphors through the refractive index of the medium, In Chemical Physics Letters, 422 (2006) 323.
- S. Venkataprasad Bhat and S. R. C. Vivekchand (2006): Optical spectroscopic studies of composites on conducting PANI with CdSe and ZnO Nanocrystals, In Chemical Physics Letters, 433 (2006) 154.
- S. Venkataprasad Bhat, Kaniska Biswas and C. N. R. Rao (2007): Synthesis and optical properties of In-doped GaN nanocrystals, In Solid State Communications, 141(2007) 325.
- Kaniska Biswas, S. Venkataprasad Bhat and C. N. R. Rao (2007): Surface-Enhanced Raman Spectra of Aza-aromatics on Nanocrystals of Metallic ReO3, In Journal of Physical Chemistry C, 111 (2007) 5689.
- B. Chitara, S. Venkataprasad Bhat, S. R. C. Vivekchand, A. Gomathi and C. N. R. Rao (2008): White-light sources based on composites of GaN nanocrystals with conducting polymers and nanophosphors. In Solid State Communications, 147 (2008) 409.
- R.V.K. Mangalam, S.Venkataprasad Bhat, A. Iyo, Y. Tanaka, A. Sundaresan and C.N.R. Rao (2008): Dielectric properties, thermal decomposition and related aspects of BiAlO3.In Solid State Communications, 146 (2008) 435.
- Anirban Ghosh, Jyoti Ranjan Sahu, S. Venkataprasad Bhat and C.N.R. Rao (2009): A Raman study of multiferroic LuMnO3. In Solid State Sciences, 11 (2009) 1639–1642.
- S. Venkataprasad Bhat and S. R. C. Vivekchand, A. Govindaraj,and C. N. R. Rao (2009): Photoluminescence and photoconducting properties of ZnO nanoparticles. In Solid State Communications, 149 (2009) 510.
- Prashant Kumar, L. S. Panchakarla, S. Venkataprasad Bhat, Urmimala Maitra, K. S. Subrahmanyam and C. N. R. Rao (2010): Photoluminescence, white-light emitting properties and related aspects of ZnO nanoparticles admixed with graphene and GaN. In Nanotechnology, 21 (2010) 385701.
- D. Swain, V.Bhadram, S. Venkataprasad Bhat, G. Pradhan, C. Narayana and C. N. R. Rao (2010): Superionic Phase transition in KHSO4: A Temperature Dependent Raman Investigation. In J. Phys. Chem. A, 114 (2010) 10040.
- S. Venkataprasad Bhat, S. B. Krupanidhi1, and C. N. R. Rao (2010): A Comparative Study of the Effect of Metallic Au and ReO3 Nanoparticles on the Performance of Silicon Solar Cells. In Applied Physics Express 3 (2010) 115001.
- S. Venkataprasad Bhat, A. Govindaraj, C.N.R. Rao (2011): Hybrid solar cell based on P3HT–ZnO nanoparticle blend in the inverted device configuration. In Solar Energy Materials & Solar Cells, 95 (2011) 2318.
- B. T. Spann, S. Venkataprasad Bhat, Q. Nian, K. M. Rickey, G. J. Cheng, X. Ruan and X. Xu, “Enhancing Photo-induced Ultrafast Charge Transfer across Heterojunctions of CdS and Laser- Sintered TiO2 Nanocrystals”
- In Phys. Chem. Chem. Phys., 16 (2014) 10669.
- Qiong Nian, Martin Y. Zhang, Yuefeng Wang, Suprem R Das, S. Venkataprasad Bhat, Fuqiang Huang, Gary J. Cheng, “Charge carrier transport and collection enhancement of copper indium diselenide photoactive nanoparticle-ink by laser crystallization” Appl. Phys. Lett.,105 (2014) 111909.
- Rickey, K.M., Nian, Q., Zhang, G., Chen, L., Suslov, S., Bhat, S.Venkataprasad., Wu, Y., Cheng, G.J., Ruan, X., Welding of Semiconductor Nanowires by Coupling Laser-Induced Peening and Localized Heating, Scientific Reports, 5, 16052, 2015.
- R. Paul*, R. N. Gayen, S. Biswas, S. Venkataprasad Bhat* and R. Bhunia, “Enhanced UV detection by transparent graphene oxide/ZnO composite thin films” RSC Advances, 6 (2016) 61661.
- Nanotechnolgy for energy systems (NT0012) for B.Tech. Nanotechnology
- Nanomagnetism (NT0006) for B.Tech. Nanotechnology
- Solid State Technology (NT2119) for M. Tech. Nanotechnology.
- Fundamentals of Nanoscience and Nanotechnology (NT2001) for M. Tech. Nanotechnology.
Opportunities:
Highly motivated students with background in materials science, physics, chemistry, nanotechnology and related subjects are welcome to the group.
Please contact us with your details.
Specific Positions available:
- To be updated.
Contact Details:
Office: R-07, 13th Floor, Central Library Building,
SRM University, Kattankulathur, Kancheepuram.
Tamil Nadu, India. PIN:603203
Email:venkataprasad.b@res.srmuniv.ac.in
Tel: +91-44-27417907
Fax: +91-44-27456702