Dr. Sai Santosh Kumar Raavi
Professor
Department of Physics, IIT Hyderabad
and
Affiliated Faculty: Department of Climate Change, IIT Hyderabad,
Brief Bio:
Dr Sai Santosh Kumar Raavi is a Professor in the Department of Physics IIT Hyderabad. His research group uses transient absorption and luminescence spectroscopy to investigate excited state dynamics of organic molecules, halide perovskite, and the charge injection and recombination dynamics at donor/accepter interfaces. The group also contributes to the ultrafast nonlinear optical characterization of the various molecular systems. Dr Raavi has authored/co-authored >100 articles in peer-reviewed international journals and conferences, and h-index = 24. He is a Fellow of the Royal Society of Chemistry (FRSC), Fellow of Telangana Academy of Sciences (FTAS), Member of National Academy of Science (NASI, 2023 onwards), INYAS (2021-25), an associate fellow of Telangana Academy of Sciences, a senior member of OPTICA. He received visiting researcher fellowship (2022) to visit National Institute for Materials Sciences (NIMS) Japan in June-September 2022, Bhaskara Advanced Solar Energy (BASE) fellowship award (2019) under IUSSTF to visit Princeton University, USA and FAPESP-Visiting Researcher award (2017) to visit IFSC-USP, Sao Carlos, Brazil. He is nominated to be the Associate Editor for Elsevier's Optical Materials journal for a period of three years (2024-2027). He is the recipient of the Faculty Research Excellence Award 2024 during the 16th foundation day of IIT Hyderabad.
Teaching
Theory Courses
EP2418 Electronic Device Physics [2 credit for BTech (Engineering Physics)]
PH5620 Quantum Devices [2 credits for MTech (Quantum and Solid state devices)]
EP3338/PH5250 Optics and Photonics [3 credits for EP and MSc students]
ET 5220 Photovoltaic (PV) Technology [2- credits for M.Tech (Energy Science and Technology)].
EP3358/PH6258 Spectroscopy [2- credits for M.Sc (Physics) and BTech (Engineering Physics)].
EP3287/PH6257 Atomic and Molecular Physics [1- credit for M.Sc (Physics) and BTech (Engineering Physics)]
EP3238 / PH6038 Laser Technology [2- credits for M.Sc (Physics) and BTech (Engineering Physics)].
PH7013 Advanced Optical Instrumentation [3- credits for PhD (Physics)]
Physics of Atoms and Molecules [3- credits for M.Sc (Physics)]
Nuclear Physics [1- credit for M.Sc (Physics) and 4th year BTech (Engineering Physics)].
Short Theory Courses
Charge Generation and Spectroscopy of OPV - GIAN course on Organic Solar Cells, Jan 8-11, 2018.
Photophysics of Organic Photovoltaics: Graduate short course@ IFSC-USP, São Carlos, Brazil.
Laboratory Courses
PH5101 General Physics Lab for MSc (Physics) First semester
EP3061 Optics teaching lab for BTech (Engineering Physics)
EP3051 General Physics teaching lab for BTech (Engineering Physics)
Professional Experience
JSPS Invitational Fellow, OPERA, Kyushu University, Japan since 1st June 2025, Halide Perovskite based Quantum Emitters
Professor, Department of Physics IIT Hyderabad since 3rd October 2023, Photophysics and Photonics of Halide Perivksites and Solar Cells Devices.
Associate Professor, Department of Physics, IIT Hyderabad 26th December 2018 - 2nd October 2023 Photophysics and Photonics of Halide Perivksites and Solar Cells Devices.
Visiting Researcher, National Institute of Materials Science (NIMS), Tsukuba, Japan 10/June/2022 28/September/2022 Development of Lead-Free and Stable Perovskite Solar Cells.
Visiting Fellow Electrical Engineering, Princeton University, USA 1/May/2019 31/July/2019 Spectroscopy of 3D and 2D Perovskites.
Assistant Professor, Department of Physics, IIT Hyderabad 10/July/2014 25/December/2018 Optical Spectroscopy of Organic Photovoltaics (OPV) & Ceramic Photonics.
Visiting Researcher/Professor, IFSC-USP, São Carlos, Brazil 12/June/2017 11/August/2017 Spectroscopy of Organic Electronic devices: Small molecule OPV & OFET
Senior Research Fellow, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore. 16/Sep/2013 30/June/2014 THz spectroscopy
Senior Post-doctoral researcher, Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia. Milan, Italy 15/Mar/2012 12/Aug/2013 Femtosecond transient absorption of organic materials for photovoltaic applications (semiconducting polymers)
Junior Post-doctoral researcher, Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia. Milan, Italy 1/Mar/2010 29/Feb/2012 Development of Femtosecond transient absorption facility with high sensitivity at CNST@Polimi
Post-doctoral researcher, Departimento di Fisica,
Politecnico di Milano, Milan, Italy 1/Mar/2009 28/Feb/2010 Femtosecond transient absorption spectroscopy of organic molecules (Ex: Spirooxazine etc.)
Awards and Honors
JSPS Invitational Fellowship (FY 2025)
IITH Research Excellence Award (2024)
Fellow, Telangana Academy of Sciences (FTAS)
Fellow, Royal Society of Chemistry (FRSC)
Associate Editor, Optical Materials (Elsevier)
Member, National Academy of Sciences, India (NASI) (2023- onwards)
Member, Indian National Young Academy of Science (INYAS) (2022-2026)
Swiss Government Excellence Scholarship, for student exchange to University of Bern, Switzerland (Sep 2023-July 2024).
Visiting Researcher Fellowship, National Institute of Materials Science (NIMS), Tsukuba, Japan (10/June/2022 - 28/September/2022)
Board of Studies: Department of Physics, SR Gudlavalleru Engineering College, Andhra Pradesh (2022 – till date)
Board of Studies: Department of Physics, Vishnu Engineering College, Bhimavaram, Andhra Pradesh (2021 – till date)
Board of Studies: Department of Physics, Geethanjali Engineering College, Hyderabad, Telangana (2021 – till date)
Board of Studies: Department of Physics, ICFAI University, Hyderabad, Telangana (2021 – till date)
Joined the Editorial Board of Energy Materials as Review Editor for Frontiers in Materials from July 2020
Selected as OSA Senior Member for class 2020 (Optical Society of America)
Nominated as Associate Fellow of the Telangana Academy of Sciences for the year 2019.
Bhaskara Advanced Solar Energy (BASE) Fellowship 2018 funded by Indo-US S&T Forum (IUSSTF) to visit Princeton University, USA during May-August 2019.
FAPESP visiting researcher fellowship during June-July 2017 to visit Institute of Physics, University of Sao Paulo, Sao Carlos, Brazil.
2021 Jean Bennett Grant, Optical Society’s (OSA) Annual Meeting- Frontiers of Optics (FIO)- 2021
2021 Incubic Milton Chang Grant. Optical Society’s (OSA) Annual Meeting- Frontiers of Optics (FIO)- 2021
DST-International travel award to attend Optical Nanostructures and Advanced Materials for Photovoltaics (PV), OSA congress on Light, Energy and Environment, Canberra, Australia, December 2-5, 2014.
Selected to attend the prestigious Gordon Research Conference on Electronic Processes in Organic Materials, held in Lucca, Italy June 3-8, 2012 and presented a research poster.
Selected to present the prestigious LAMP Seminar at the Winter College on Optics and Energy, ICTP, Trieste, February 9, 2010.
Winner of Young scientist Award in Physics for the year 2008, instituted by Dr. K. V. Rao Scientific society.
Recipient of CSIR/JRF-SRF fellowship. [Period: January 2005-March 2009]
Qualified the National Eligibility Test (NET) for lectureship under UGC schemes (June 2004).
Qualified GATE-2004 exam with an All India Rank of 256.
Recipient of scholarship on merit from the Board of Intermediate Examination, A.P.
Administrative Activities
Faculty-in-charge, IITH Technology Research park (IITH-TRP) (April 2024 - June2025)
Member of Institute Research Advisory Council (RAC) since September 2022.
Institute Ranking coordinator. (Since September 2022)
a. Convene the Ranking committee meeting and discuss the possible good practices to improve the institute ranking in NIRF, ARIAA and QS.
b. Oversee the data collection from various sections and check the data correctness before reporting on the Ranking Portals.
c. Perform data analysis and support the institute along with the ARIAA ranking team with suggestions towards good practices for the benefit of institute
Nodal officer for QS ranking and NIRF ranking (since August 2020).
Member of Institute Innovation Council (IIC) (since March 2021): Attend quarterly IIC review meeting and provide suggestion required from the institute ranking perspective.
Member of Institute Research Advisory Council (RAC) (since September 2022)
Member of Institute Library Advisory Committee (LAC) (since December 2022)
Member of Senate Undergraduate Committee (SUGC) (since September 2020)
Institute Representative for conducting GATE and JEE exams (every year since 2015).
Center vetting team for GATE and JEE exams (2018, 2019, 2021, 2022)
JEE counselling team (2017).
Departmental Responsibilities
Head-in-charge for Department of Physics, IITH (April-June 2025)
Convenor DUGC, Physics (since August 2020)
Member of DUGC, Physics (2018-2020)
Placement coordinator
a. Physics Department (since 2018)
b. MTech Energy Science and Technology (since 2022)
Member DPGC, Physics (since 2021)
Department representative for development of Course Booklet (since 2019)
Department Seminar series in charge (2015-2017).
Part of various Doctoral Committee and many departments related activities like faculty selection shortlisting, PhD student shortlisting etc.
Technical Program Committee. XLVI OSI SYMPOSIUM - International Conference on Optics, Photonics and Quantum Information "OPTIQ-2023".
Co-Advisor, Optica student chapter, IIT Hyderabad 2021 onwards.
Technical Program Committee, XLIV OSI SYMPOSIUM, Frontiers in Optics and Photonics (FOP21), IIT Delhi, New Delhi, September 24-27, 2021.
Coordinator: ATAL Faculty Development workshop on Energy Conversion and Storage devices (ECSD-21), July 1-5, 2021.
Technical Program Committee, International Conference on Research Frontiers in Sciences, ICRFS-21. February 5-6, 2021, Nagpur, India.
International Program Committee, 8th International Conferenence of Photonics Optics and Laser Tehcnology (PHOTOOPTICS-2020), February 20-22, 2020, Valletta, Malta.
Technical Program Committe, Theme of Ultrafast Sciences 2018 (UFS-2018), University of Hyderabad, Nov 7-9, 2018.
Co-organized GIAN couse on Organic Solar Cells, Jan 8-12, 2018.
Co-Convenor, National conference on Recent Advances in Optical Sciences-II (RAOS-2016), University of Hyderabad, Hyderabad, May 6-7,2016.
Program Committee.Optical Nanostructures and Advanced Materials for Photovoltaics (PV) held 2-5 December 2014 in Canberra, Australia.
Conference General Chair, Optical Instrumentation for Energy & Environmental Applications (E2), Tuscon, USA, , November 4-7, 2013.
Conference General Chair, Optical Instrumentation for Energy & Environmental Applications (E2), Eindhoven, The Netherlands, November 11-15, 2012.
Program committee, Optical Instrumentation for Energy & Environmental Applications (E2), held at Austin, Texas during Nov 2-3, 2011.
Professional Society Membership
International
FELLOW: Royal Socieity of Chemistry (FRSC)
Senior Member, Optical Society of America (OSA)
Active Member: SPIE- International society for optics and photonics
Active Member: IEEE
National
FELLOW:, Telangana Academ of Sciences (FTAS)
Active Member: National Academy of Sciences India (NASI), MNASI (2023- onwards)
Active Member: Indian National Young Academy of Science (INYAS) (2022-2026)
Lifetime Member: Optical Society of India (OSI)
Lifetime Member, Indian Laser Association (ILA)
Lifetime Member: ISRAPS - Indian Society for Radiation and Photochemical Sciences.