FACULTY PROFILE
Dr. M. Raghavender
Assistant Professor
DEPARTMENT OF PHYSICS
YOGI VEMANA UNIVERSITY, VEMANAPURAM
KADAPA - 516 005, Y.S.R. Dist. ANDHRA
PRADESH, INDIA
+91-9885069418
ragha@yogivemanauniversity.ac.in, toraghavender@rediffmail. com
https://www.researchgate.net/profile/Dr_Raghavender_Mitty
https://scholar.google.com/citations?user=4xYdlIoAAAAJ&hl=en&oi=ao
Qualification :
Ph.D. in Physics, 2006, from Osmania University, Hyderabad-7, T.S., India.
PDF/Teaching experience :
1. Assistant Professor: Teaching and research at Dept. of Physics, Yogi Vemana University, Kadapa, from July 2009 to till today.
2. Research Scientist: CSIR-IICT (Indian Institute of Chemical Technology) - Aisin Cosmos R&D Co Ltd, Japan, during 2006-2009.
Research Focus:
Solar Photovoltaics (PV) are well designed and attractive devices for electrical energy production. The price of solar power from inorganic silicon technology still significantly high, thus prohibiting the large-scale applications. Perovskite solar cells (PSC); Dye sensitized solar cell (DSSC) are one of the potential candidates as next generation low cost solar cells. These devices have found advantages of low weight, transparent, flexible, little impact on the environment, free from chemical and noise pollution. We here interested on development cost effective PSCs and DSSCs using multifunctional smart materials.
Area/s of research interests :
1. 3rd Generation solar photovoltaics..
2. Multifunctional smart materials for energy conversion and storage devices.
3. Development of cost effective, novel hole transport material
Description of Research Work:
Interested on optimization of spectral response, photocurrent, photovoltage and long-term stability. Currently we engaged on develop cost effective counterelectrode, charge carrier dynamics of the DSSCs, novel hole transport (HTMs) materials for PSC devices.
Research grants (during the last six years):
1. Fabrication of low cost nano crystalline TiO2 based dye sensitized solar cells, 2012-2015, 21.33 Lakh, DST-SERB(YS).
2. Fabrication of cost effective dye sensitized solar cells with platinum free counter electrodes and bi-functional upconversion photo electrodes, 2017-2020, 29.43 Lakh, DST-SERB(EMR).
Research students (Ph.D awarded/working):
Awarded :
1. Dr. K. SUSMITHA, [“Development and evaluation of low cost dye sensitized solar cells for energy conversion applications”. 2016].
Pursuing :
1. Gurulakshmi Maddala, JRF, “Development of low cost materials for energy conversion and storage devices”.
2. Meenakshamma Ambapuram, JRF, “Fabrication of upconversion dye sensitized solar photovoltaics”. 3. Vikrama Chari Mudumala “Nanocomposite based electrolytes assisted durable dye desensitized solar cells”. (Part-time).
Achievements/Awards :
1. DST-Young Scientist Award 2012..
2. Dr. K. V. Rao Young Scientist Award (winner) in Physics, 2007.
3. APCOST Young Scientist Fellowship Award in Physics, 2006.
4. CSIR-Senior Research Fellowship (SRF) award in Physics, 2006.
Selected publications:
Selected Publications (last 5 years):
1. Enhanced Performance of Dye-Sensitized Solar Cells (DSSCs) Based on MoS2/Single-Walled Carbon Nanohorns Electrochemically Deposited on Bilayer Counter Electrodes.
Maddala Gurulakshmi, Ambapuram Meenakshamma, Kalvapalli Susmitha Yerva Pedda Venkata Subbaiah, Mitty Raghavender* ChemPlusChem, Accepted. DOI:10.1002/cplu.202000558R2. (I.F.= 3.14).
2. Cost effective thiophene assisted novel dopant-free hole transport materials for efficient perovskite solar cell performance.
M. SasiKumar, Gurulakshmi Maddala, Meenakshamma Ambapuram, Mahesh Subburu, Jayathirtha Rao Vaidya, S. Narendra Babu, Prabhakar Chetti, Raghavender Mitty*, and Someshwar Pola* Sustainable Energy and Fuels, 4, (2020) 4754-4767. (I.F.= 5.56)
3. Highly effective SnS composite counter electrode sandwiched bi-function CeO2:Er3+/Yb3+ assisted surface modified photoelectroded dye sensitized solar cell exceeds 9.5 % efficiency.
Ambapuram Meenakshamma, Maddala Gurulakshmi, Simhachalam Narendra Babu, Sripada Suresh, Kalvapalli Susmitha, Yerva Pedda Venkata Subbaiah, Mitty Raghavender*
Solar Energy, 207(07), (2020) 1158-1164. (I.F=4.674)
4. Effective upconverter and light scattering dual function LiYF4:Er3+/Yb3+ assisted photoelectrode for high performance co-sensitized DSSC. Meenakshamma Ambapuram, Rajeswari Ramireddy, Gurulakshmi Maddala, Siddeswaramma Godugunuru, Pedda Venkata Subbaiah Yerva, Raghavender Mitty*
ACS Applied Electronic Materials, 2(4), (2020) 962- 970. (I.F.= Pending)
5. Electrodeposited MoS2 counter electrode for flexible dye sensitized solar cell module with ionic liquid assisted photoelectrode.
M.Gurulakshmi, A. Meenakshamma, G.Siddeswaramma, K.Susmitha, Y.P.Venkata Subbaiah, T.Narayana, M.Raghavender*
Solar Energy, 199, (2020) 447- 452. (I.F.= 4.674)
6. A novel PEDOT:PSS/SWCNH bilayer thin film counter electrode for efficient dye-sensitized solar cells.
A.C. Kasi Reddy, M.Gurulakshmi, K.Susmitha, Narayana Thota, Y.P.Venkata Subbaiah*. M.Raghavender* Journal of Materials Science: Materials in Electronics, 31, (2020) 4752–4760. (I.F.=2.195).
7. A transparent and Pt-free all-carbon nanocomposite counter electrode catalyst for efficient dye sensitized solar cells.
M. Gurulakshmi, A. Meenakshamma, K. Susmitha, N. Charanadhar, V. V. S. S. Srikanth, S. Narendra Babu, Y. P. Venkata Subbaiah, K. Venkateswarlu, M. Raghavender *
Solar Energy, 193 (2019) 568- 575. (I.F.= 4.674).
8. Recent Progress and Emerging Applications of Rare Earth Doped Phosphor Materials for Dye-sensitized and Perovskite Solar Cells: A Review.
Ramireddy Rajeswari, Nanaji Islavath, M. Raghavender, and Lingamallu Giribabu *
The Chemical Record, 19 (2019) 1–25. (I.F.= 5.387).
9. Recent development on carbon based heterostructures for their applications in energy and environment: A review
Theerthagiri Jayaraman, Arun Prasad Murthy, Venugopal Elakkiya, Sivaraman Chandrasekaran, Palaniyandy Nithyadharseni, Ziyauddin Khan, Raja Arumugam Senthil, Ravi Shanker, Mitty Raghavender, Parasuraman Kuppusami, Madhavan Jagannathan, Muthupandian Ashokkumar *
Journal of Industrial and Engineering Chemistry, 64 (2018) 16-59 (I.F.= 4.978).
10. 3D nanorhombus nickel nitride as stable and costeffective counter electrodes for dye-sensitized solar cells and supercapacitor applications
Saradh Prasad, G. Durai, D. Devaraj,* Mohamad Saleh AlSalhi,* J. Theerthagiri, Prabhakarn Arunachalam, M. Gurulakshmi, M. Raghavender, P. Kuppusami RSC Advances 8 (2018) 8828. (I.F.=3.108).
11. Enhanced light harvesting with novel photon upconverted Y2CaZnO5:Er3+/Yb3+ nanophosphors for dye sensitized solar cells
R. Rajeswari , K. Susmitha , C. K Jayasankar , M. Raghavender *, L. Giribabu * Solar Energy, 157 (2017) 956-965. (I.F.= 4.674).
12. Novel photoanode architecture for optimal dye sensitized solar cell performance and its small cell module study
K. Susmitha, M. Naresh Kumar, M. Gurulakshmi, L. Giribabu, M. Raghavender *
Sustainable Energy & Fuels, 1(3), (2017) 439-443. [(RSC Publications (Pending)].
13. High performance dye anchored counter electrodes with a SPSQ2 sensitizer for dye sensitized solar cell applications
K. Susmitha, M. Gurulakshmi, M. Naresh Kumar, L. Giribabu, G. Hanumantha Rao, Surya Prakash Singh, S. Narendra Babu, M. Srinivas, M. Raghavender *.
Materials Chemistry Frontiers, 1 (2017) 735-740. [(RSC Publications (Pending)].
14. Pt-free spray coated reduced graphene oxide counter electrodes for dye sensitized solar cells Charanadhar Nagavolu, K. Susmitha, M. Raghavender, L. Giribabu, Kota Bhanu Sankara Rao, C.T.G. Smith, C.A. Mills, S.R.P. Silva, V.V.S.S. Srikanth* Solar Energy, 137 (2016) 143-147. (I.F.= 4.674).
15. Carbon nanohorns based counter electrodes developed by spray method for dye sensitized solar cells
K. Susmitha, M. Mamata Kumari, A. Joseph Berkmans, M. Naresh Kumar, L.Giribabu, S. V. Manorama, M. Raghavender *
Solar Energy, 133 (2016) 524-532. (I.F.= 4.674).
16. Dye anchored counter electrode: Novel architecture towards enhanced performance for multiple dyes sensitized solar cell
K. Susmitha, M. Raghavender *, M. Naresh Kumar, L. Giribabu
RSC Advances, 6 (2016) 22620-22624. (I.F.= 3.108).
17. Noble metals (Ag, Au, Pt) functionalized carbon nanohorns as alternate counter electrodes for dye sensitized solar cells
K. Susmitha, M. Naresh Kumar, L. Giribabu, S. Narendra Babu, M. Raghavender * Journal of Materials Science: Materials in Electronics, 27 (6) (2016) 5802-5809. (I.F=2.019).
18. Carbon nanohorns functionalized PEDOT:PSS nanocomposites for dye sensitized solar cell applications
K. Susmitha, M. Mamatha Kumari, M. Naresh Kumar, L. Giribabu, J. Theerthagiri, J. Madhavan, M. Raghavender *
Journal of Materials Science: Materials in Electronics, 27 (2016) 4050-4056. (I.F=2.019).
19. Enhanced dye sensitized solar cell performance with high surface area thin ZnO film and PEDOT:PSS
K. Susmitha, M. Naresh Kumar, G. Rajkumar, L.Giribabu, M. Raghavender * Solar Energy, 118 (2015) 126-133. (I.F=4.674).).
Conference/symposia attended (during the last five years) :
Other Information (books, patents, collaborations etc.) :
Collaborations:
1. Dr. L. GiriBabu, Senior Principal Scientist, CSIR-IICT, Hyderabad.
2. Dr. Surya Prakash Singh, Principal Scientist, CSIR-IICT, Hyderabad.
3. Dr.Vadali V.S.S. Srikanth, School of Engineering Sciences, Hyderabad Central University, Hyderabad, T.S., India.
4. Dr. Theerthagiri Jayaraman, Satyabhama University, Chennai..

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