Professional Brief
Professional Experience
Assistant Professor in Physics,
PSG Institute of Advanced Studies, Coimbatore
Senior Research Fellow (DAE-BRNS),
Union Christian College Aluva.
Junior Research Fellow (DAE-BRNS),
Union Christian College Aluva.
Academic Details
Ph.D. in Materials Engineering , Autonomous University of Nuevo Leon, Mexico, 2023
M.Sc. in Physics, National Institute of Technology Tiruchirappalli (NIT-T), India, 2014
B.Sc. in Physics, Mahatma Gandhi University Kottayam, India, 2012
Research Interests
Density functional theory (DFT) calculations
Structure-property relationships, Light-matter interactions and charge carrier transport in semiconductors
Lead-free perovskites, chalcogenides and chalcohalides for optoelectronics.
Metal oxides for transparent conducting oxide (TCO) applications
Awards and Honors
DAE-BRNS Project fellow.
CONACYTresearch fellowship by govt. of Mexico.
Science Academies Summer Research Fellow (SRFP)
Membership in Professional Bodies
| Sl. No | Name of Society | Type of Membership |
|---|---|---|
| 1 | Perovskite Society of India | Life long |
| 2 | Mexican Society of Materials | Life long |
| 3 | Optical Society of America | – |
Invited Talks
- “Beginner’s workshop on MedeA-VASP atomistic simulation package for solar cell materials”, LIFYCS workshop, Instituto de Energías Renovables, Universidad Nacional Autónomade México (UNAM), Mexico, 9 December 2021
- “(Not Just) Making Things Smaller- Nanoscience and nanotechnology”, KMEA Engineering College, Edathala, Kerala, India, 21 January 2021
Workshops/training
- Programming, data structures and algorithms using Python, NPTEL online certification (Indian Institute of Technology Madras)
- INUP i2i – Online familiarization workshop on “Quantum Materials and Nano Devices” organized by the Centre for Nanotechnology, IIT Guwahati, 06 – 08 December 2023
- “Hands-on-training on Density Functional Theory Modelling of Materials: Nanoparticles, Thin Films, Unit Cells (DFT-M)”, Centre for Advanced Computational Research, New Delhi, 22 – 28 October 2023
- “1st online hands-on-training on DFT Computation of Advanced Materials”, Centre for Advanced Computational Research, New Delhi, 10 – 19 June 2024.
Publications
Enhancing thermoelectric properties of spinel ZnFe2O4 by Ni substitution through electron hopping mechanism
John, N., Davis, N., Roshan, J. C., Hussain, S., S. Devasia,Srinivasan, B., & Ashok
A. M. Ceramics International (2024). Doi: 10.1016/j.ceramint.2024.08.365
Characterisation of Sn-Cl co-doped β − Ga2O3 thin films deposited via spray pyrolysis and their application in UV detector devices
R Raphael, S S. Devasia,Shaji, E.I. Anila
Sensors and Actuators A: Physical 376 (2024) 115546. Doi: 10.1016/j.sna.2024.115546
In situ grown Bi2S3 nanorods in Cs3Bi2I9 thin films as broadband self-driven photodetector with improved photostability
S. Devasia,Shaji, D.A. Avellaneda, J.A. Aguilar Martinez, B. Krishnan
Optical Materials 152 (2024) 115532. Doi: 10.1016/j.optmat.2024.115532
In situ grown Bi2S3 nanorods in Cs3Bi2I9 thin films as broadband self-driven photodetector with improved photostability
S. Devasia,Shaji, D.A. Avellaneda, J.A. Aguilar Martinez, B. Krishnan
Optical Materials 152 (2024) 115532. Doi: 10.1016/j.optmat.2024.115532
“Ultrasonically sprayed Cs3Bi2I9 thin film based self-powered photodetector”
S. Devasia, S. Shaji, D.A. Avellaneda, J.A. Aguilar Martinez, B. Krishnan
Mater. Chem. Phys. 296 (2023) 127295. doi:10.1016/j.matchemphys.2023.127295.
“In situ crystallization of 0D perovskite derivative Cs3Bi2I9 thin films via ultrasonic spray”
S. Devasia, S. Shaji, D.A. Avellaneda, J.A.A. Martinez, B. Krishnan
J. Alloys Compd. 893 (2021) 162294. doi:10.1016/j.jallcom.2021.162294
“Tin antimony sulfide (Sn6Sb10S21) thin films by heating chemically deposited Sb2S3/SnS layers: Studies on the structure and their optoelectronic properties”
S. Devasia, S. Shaji, D.A. Avellaneda, J.A. Aguilar Martinez, B. Krishnan
J. Alloys Compd. 827 (2020) 154256. doi:10.1016/j.jallcom.2020.154256
“Monoclinic AgSbS2 thin films for photovoltaic applications: Computation, growth and characterization approaches”
A. Nadukkandy, S. Devasia, P. Abraham, S. Shaji, D.A. Avellaneda, J.A. Aguilar-Martínez, E.G. Martinez, R.F. Cienfuegos-Pelaes, B. Krishnan
Mater. Sci. Semicond. Process. 135 (2021) 106074. doi:10.1016/j.mssp.2021.106074.
“Photosensitive antimony triiodide thin films by rapid iodization of chemically deposited antimony sulfide”
A.A. Ramachandran, B. Krishnan, S. Devasia, D.A. Avellaneda, M.I. Mendivil Palma, J.A. Aguilar Martinez, S. Shaji
Mater. Res. Bull. 142 (2021) 111382. doi:10.1016/j.materresbull.2021.111382.
“Metal–semiconductor–metal visible photodetector based on Al-doped (Cd:Zn)S nano thin films by hydrothermal synthesis”
J. Mathew, S. Devasia, S. Shaji, E.I. Anila
Optik (Stuttg). 241 (2021) 166878. doi:10.1016/j.ijleo.2021.166878.
“Spectral and nonlinear optical characterization of blue light emitting gahnite nanorods synthesized through radiation assisted sol gel method”
P. J. Joffy, V. G. Sreeja, S. Devasia and E. I. Anila
Solid State Sci., 2019, 96, 105947
“Controlling the zinc oxide unipolarity through dual acceptor doping for spray-cast homojunction diode”
S. Devasia, P. V. Athma and E. I. Anila
Mater. Lett., 2019, 238, 112–115
“Post-deposition thermal treatment of sprayed ZnO:Al thin films for enhancing the conductivity”
S. Devasia, P. V. Athma, M. Shaji, M. C. S. Kumar and E. I. Anila
Phys. B Condens. Matter, 2018, 533, 83–89.
“Investigation on P-N dual acceptor doped p-type ZnO thin films and subsequent growth of pencil-like nanowires”
R. Amiruddin, Sebin Devasia, K. Mohammedali, M. C. Santhosh Kumar
Semiconductor Science and Technology30 035009 (2015)
Conference proceedings
Effect of source-substrate distance on the transparent electrode properties of spray pyrolysed aluminium doped zinc oxide thin films
S. Devasia, P.V. Athma, Rakhy Raphael, E.I. Anila
Materials Today: Proceedings, 2021, ISSN 2214-7853, https://doi.org/10.1016/j.matpr.2021.10.203.
A Study on the Emergence of P-Type Behaviour in Sr-Cu-O Mixed Phase Systems
A. Mariya Thomas, S. Salam, M. C. Santhoshkumar, S. Devasia and E. I. Anila, J
Phys. Conf. Ser., 2019, 1172, 012008.
Tuning the surface morphology of aluminium doped zinc oxide thin films by arrayed nanorods through chemical growth process.
S. Devasia, and E. I. Anila
AIP Conference Proceedings, 2018, vol. 1942, p. 080018.
Synthesis and characterization of photoconducting (Cd:Zn)S thin films by hydrothermal assisted chemical bath deposition
J. Mathew,S. Devasia, and E. I. Anila
AIP Conference Proceedings, 2018, vol. 1942, p. 080080.
Investigation on the Structural, Electrical and Transmitting properties of Aluminium doped ZnO thin films
S. Devasia, P V Athma, Anumol Jose and E I Anila
IOP Conference Series: Mater. Sci. Eng. 149 012077 (2016).
Nonlinear optical characterization of graphite oxide thin film by open aperture Z-scan technique
V G Sreeja, Ajina Cheruvalathu, S. Devasia, E I Anila,
AIP Conf. proc., 1731 080023 (2016)
Conference presentations
International
- “Bismuth sulfide nanorods decorated cesium bismuth iodide composite thin films by ultrasonic spray pyrolysis,” Sebin Devasia, S. Shaji, D. A. Avellaneda, J. A. Aguilar Martinez, and B. Krishnan, XV International Conference on Surfaces, Materials and Vacuum, Puerto Vallarta, Mexico, 26-29 September 2022. (Oral presentation)
- “Perovskite-inspired Cs3Bi2I9 films via ultrasonic spray for self-powered photodetectors”, Sebin Devasia, S. Shaji, D. A. Avellaneda, J. A. Aguilar Martinez, and B. Krishnan, XXX International Materials Research Congress (IMRC) Cancun, Mexico, 14-19 August 2022. (Oral presentation)
- “Effect of source-substrate distance on the transparent electrode properties of spray pyrolysed aluminium doped zinc oxide thin films,” International Conference on Recent Advances in Materials and Manufacturing (ICRAMM), 25-26 November 2021, Kolhapur, Maharashtra, India.
- “Ultrasonically spray deposited cesium bismuth iodide thin films: Structure, morphology and photophysical properties,” Sebin Devasia, S. Shaji, D. A. Avellaneda, J. A. Aguilar Martinez, and B. Krishnan, XXIX International Materials Research Congress (IMRC) Cancun, Mexico, 15-19 August 2021. (Oral presentation)
- “Ultrasonic Spray deposited BiI3 thin films for Optoelectronicapplications”, Progress and promises in chemical sciences (PPCS-2021), Sebin Devasia, S. Shaji, D. A. Avellaneda, J. A. Aguilar Martinez, and B. Krishnan, 22 March 2021, Christ (deemed to be university), Bengaluru (Bengaluru (Bangalore)), India. (Oral presentation)
- “Ab initio simulations to ultrasonically sprayed thin films of bismuth triiodide”, Sebin Devasia, S. Shaji, D. A. Avellaneda, J. A. Aguilar Martinez and B. Krishnan, 12th international conference on Hybrid and organic photovoltaics (HOPV20 online conference), 26 – 29th May 2020. (Poster presentation)
- “Bismuth triiodide:Ab initio simulations to spray-cast thin films,” Sebin Devasia, S. Shaji, D. A. Avellaneda, J. A. Aguilar Martinez and B. Krishnan, RSC Twitter conference, 3 March 2020.(Poster presentation)
- “Tuning the surface morphology of aluminium doped zinc oxide thin films by arrayed nanorods through chemical growth process,” Sebin Devasia and E I Anila, DAE-Solid state physics symposium 2017, 26 – 30th December 2017, BARC, Mumbai. (Poster presentation)
- “Highly conductive and transparent ZnO:Al thin film by spray pyrolysis for transparent electronics,” Sebin Devasia, P V Athma and Dr. E.I. Anila, AMPC-2017, 27th& 28th February 2017, NIT Tiruchirappalli. (Poster presentation)
- “An investigation on the structural, electrical and transparent properties of aluminium doped ZnO thin films” at the International Conference on Advanced Materials and Manufacturing Applications (IConAMMA-2016) organized by Amrita School of Engineering, 15th – 16th July 2016, Amrita Viswa Vidyapeetham University, Bengaluru.(Oral presentation)
- National Workshop on Nanophotonics organized by Centre for Advanced Materials & Department of Physics, CUSAT Cochin in association with SPIE CUSAT Student Chapter held on 18-19th March 2016. (Poster presentation)
- “Low resistive P,N dual acceptor doped p-type ZnO thin films” in the National Conference on Nanophotonics (NCNP- 2014) held at the school of physics, Bharathidasan University Tiruchirappalli during 6-7th March 2014. (Oral presentation)
