Dr. Sayan Dey Assistant Professor
School of Electrical Sciences

Research Interests

Semiconductors and devices 
  • Wide bandgap semiconductors
  • Chemical sensors
  • Hybrid devices
Nanostructured materials
  • Transition metal oxides
  • 2D materials
Electronic systems
  • Electrical spectrosopy
  • Sensor interfacing electronics

Contact Details

  • B305, School of Electrical Sciences, IIT Bhubaneswar
  • +916747135768
  • sayandey@iitbbs.ac.in, sdsayandey421@gmail.com

Other Profile Link(s)


 Degree Discipline Year School
  Fulbright-Nehru Fellowship Program (Postdoc) Electrical Engineering 2022 Columbia University
  Postdoc Electrical Engineering 2021 IIT Bombay
  Doctor of Philosophy (Ph.D.) Electronics and Electrical Communication Engineering 2020 Indian Institute of Technology Kharagpur
  Master of Technology (M.Tech) Nanoscience and Technology 2015 Jadavpur University
  Bachelor of Technology (B.Tech) Electronics and Communication Engineering 2011 West Bengal University of Technology


Dr. Sayan Dey received his PhD from the department of Electronics & Electrical Communication Engineering, IIT Kharagpur in 2020. After the completion of his PhD, he started working as a postdoctoral fellow at IIT Bombay till October 2021. Thereafter, he received the Fulbright-Nehru postdoctoral fellowship and joined as a visiting scientist at Columbia University, USA in November 2021. 

His research areas include semiconductor device fabrication, chemical sensors, electrical spectroscopy, nanostructured materials and sensor interfacing electronics (both hardware and software). Presently, he has about thirty one published research articles in reputed, high impact, peer reviewed international journals and conferences (including IEEE Transactions on Electron Devices, ACS Applied Electronic Materials, RSC Advances, Nature Microsystems and Nanoengineering, etc. to name a few)He co-owns an Indian patent for his work on highly selective chemoresistive toluene vapor sensor. Presently, his research articles hold 232 citations with an h-index of 9.

He has been awarded the national award for best thesis (Innovative Student Projects Award) twice, in 2015 and 2020, by the Indian National Academy of Engineering (INAE), respectively, for his M.Tech and Ph.D. dissertations. He is currently a member of the INAE since December 2020. He is the reviewer of several reputed, peer-reviewed scientific journals (IEEE Transactions of Electron Devices, IEEE sensors, RSC Advances, etc.) and has co-authored two text books on electronic device fabrication and materials processing.

He has more than six years of experience in nanostructure growth, solution based synthesis, sensor device fabrication, and handling clean room facilities. He is specially trained in handling X-ray diffraction, Field Emisison Scanning Electron Microscope (FESEM), optical spectroscopes, thin film deposition and optical lithography units and building microdevice characterization setups (with special focus to sensor device characterization).  



Autumn 2022-23
1. Principles of Device Microfabrication (Columbia University)
Spring 2022-23
1. Digital Electronics and Microprocessor
2. Digital Electronics and Microprocessor Lab
3. Electrical Technology Lab
4. Seminar II (for M.Tech)


Recent Publications (International Journals)

1Abhijit Narayan Eshore; Sayan Dey; Dipak Kumar Goswami; Prasanta Kumar Guha; Crystallographic Nanojunctions of Bismuth Ferrite for Unconventional Detection of Carbon Monoxide ACS Applied Nano Materials, 2023, 6, 11, 9397–9403, DOI: 10.1021/acsanm.3c01119
2Sayan Dey*, Preetam Guha Ray, Trina Roy, Sumita Santra, Santanu Dhara, Samit Kumar Ray, Prasanta Kumar Guha; “Nano-inspired biocompatible chemosensors: A Progress towards efficient prognosis of arsenic poisoning” ACS Applied Bio Materials, 2022, 5, 3850 – 3858, DOI: https://doi.org/10.1021/acsabm.2c00405
3Swati Nag, Sayan Dey#,*, Debmallya Das, Prasanta Kumar Guha; “Adsorption mediated n – Type ZnO surface reconstruction for enhanced VOC vapour sensing: An experimental and first principle insight” ACS Applied Electronic Materials, 2022, 4, 3825 – 3833, DOI: 10.1021/acsaelm.2c00452
4Monikuntala Bhattacharya; Sayan Dey#; Md Sahanoor Islam; Anirban Roychowdhury; Jiten Ghosh; Chandan Kumar Ghosh; “Trapped exciton enhanced response of n-TiO2 (110) / p-Si (111) photodetector: adiabatic hole transfer across the interface”, ACS Applied Nano Materials, 2022, 5, 2, 2316–2325, DOI: https://doi.org/10.1021/acsanm.1c03993
5Monikuntala Bhattacharya; Sayan Dey; Chandan Kumar Ghosh; “n-type TiO2 based re-usable sensor for light assisted Cd(II) ion detection” IEEE Transactions on Electron Devices, 2021, Vol. 68(6), 2951-2956, DOI: 10.1109/TED.2021.3071104
6Anurag Kar; Sayan Dey#; Debasree Burman; Sumita Santra; Prasanta K. Guha; “RGO/Ni2O3 heterojunction based re-usable, flexible device for Cr(VI) ion detection in water” IEEE Transactions on Electron Devices, 2021, Vol. 68(2), 780-785, DOI: 10.1109/TED.2020.3045954
7Sayan Dey; Swati Nag; Sumita Santra; Prasanta Kumar Guha; Samit Kumar Ray; “Voltage controlled NiO/ZnO heterojunction device: A new approach towards selective VOC sensing”, Microsystems and Nanoengineering, Nature, 2020, 6(35), https://doi.org/10.1038/s41378-020-0139-1
8Sayan Dey; Sumita Santra; Prasanta Kumar Guha; Samit Kumar Ray; “FexNi(1-x)O/NiO heterojunction based selective VOC sensor device by using temperature tunability”, IEEE Sensors Journal, 2019, Vol. 20(14), 7503-7508, DOI: 10.1109/JSEN.2019.2962182
9Avik Sett; Sayan Dey; Prasanta Kumar Guha; Tarun Kanti Bhattacharya; “ZnO/γ-Fe2O3 heterostructure towards high performance Acetone sensing”, IEEE Sensors journal, 2019, Vol. 19(9), 8576-8582, DOI: 10.1109/JSEN.2019.2921421
10Sayan Dey; Sumita Santra; Prasanta Kumar Guha; Samit Kumar Ray; “Liquid exfoliated NiO nanosheets for trace level detection of acetone vapours”, IEEE Transactions on Electron Devices, 2019, Vol. 66(8), 3568-3572, DOI: 10.1109/TED.2019.2922704
11Sayan Dey; Soumik Podder; A. Roychowdhury; Dipankar Das; Chandan K. Ghosh; “Facile synthesis of hierarchical nickel (III) oxide nanostructure: A synergistic remediating action towards water contaminants”, Journal of Environmental Management, 2018, Vol. 211, 356-366, DOI: https://doi.org/10.1016/j.jenvman.2018.01.009
12Sayan Dey; Sumita Santra; Samit Kumar Ray; Prasanta Kumar Guha; “Coral like CuxNi(1-x)O based resistive sensor for humidity and VOC detection”, IEEE Sensors Journal, 2018, Vol. 18(15), 6078-6084, DOI: 10.1109/JSEN.2018.2844192
13Sayan Dey; Sumita Santra; Sabyasachi Sen; Debasree Burman; Samit K Ray; Prasanta K Guha; “Photon assisted ultra-selective Formaldehyde sensing by defect induced NiO based sensing layer”, IEEE Sensors Journal, 2018, Vol. 18(14), 5656-5661, DOI: 10.1109/ICSENS.2017.8234446
14Inderjeet Singh; Sayan Dey; Sumita Santra; Katharina Landfester; Rafael Muñoz-Espí; Amreesh Chandra; “Cerium-doped Copper (II) Oxide Hollow Nanostructures as Efficient and Tunable Sensors for Volatile Organic Compounds”, ACS Omega, 2018, Vol. 3(5), 5029-5037, DOI: https://doi.org/10.1021/acsomega.8b00203
15Swarupananda Bhattacharjee; Arka Dey; Sayan Dey; A Roychowdhury; Partha Ray; Dipankar Das; Gopes Das; Chandan Ghosh; “Electron – phonon interaction to tune metal – semiconductor junction characteristics: ultralow potential barrier and less non-thermionic emission", Physica B: Condensed Matter, 2018, Vol. 547, 101-110, DOI: https://doi.org/10.1016/j.physb.2018.08.011
16Shyamasree Gupta Chatterjee; Sayan Dey; Dhrubajyoti samanta; Sumita Santra; Somenath Chatterjee; Prashanta K Guha; “Near Room Temperature Sensing of Nitric Oxide Using SnO2/Ni-decorated Natural Cellulosic Graphene Nanohybrid Film”, Journal of Materials Science: Materials in Electronics, 2018, Vol. 29, 20162 – 20171, DOI: https://doi.org/10.1007/s10854-018-0149-z
17Sayan Dey; Sumita Santra; Anupam Midya; Prasanta Kumar Guha; Samit Kumar Ray, “Synthesis of CuxNi(1−x)O coral-like nanostructures and their application in the design of a reusable toxic heavy metal ion sensor based on an adsorption-mediated electrochemical technique”, Environmental Science: Nano, 2017, Vol. 4, 191-202, DOI: 10.1039/C6EN00285D
18Raj Shekhar Bose; Sayan Dey; Saswati Saha; Chandan Kumar Ghosh, Mahua Ghosh Chaudhuri; “Enhanced removal of dissolved aniline from water under combined system of nano zero-valent iron and Pseudomonas putida”, Sustainable Water Resources Management, 2016, Vol. 2, 143-159, DOI: https://doi.org/10.1007/s40899-016-0045-8
19Sayan Dey; Swarupananda Bhattacharjee; Raj Shekhar Bose; Chandan Kr. Ghosh “Room temperature synthesis of hydrated nickel (III) oxide and study of its effect on Cr (VI) ions removal and bacterial culture”, Applied Physics A: Materials Science & Processing, Spinger, March, 2015, Vol. 119(4), 1343-1354, DOI: https://doi.org/10.1007/s00339-015-9101-8
20Sayan Dey; Swarupananda Bhattacharjee; Mahua Ghosh Chaudhuri; Raj Shekhar Bose; Suman Halder; Chandan Kumar Ghosh “Synthesis of pure nickel (III) oxide nanoparticles at room temperature for Cr(VI) ion removal”, RSC Advances, 2015, Vol. 5, 54717-54726, DOI: 10.1039/C5RA05810D

Conferences (International)

1Snehanjan Acharyya; Sayan Dey; Sudip Nag; Prasanta Kumar Guha; “2-Propanol detection with NiO decorated SnO2 microspheres for indoor air quality monitoring applications”, IWPSD 2019, Kolkata, India
2S. Gupta Chatterjee; N. Chakrabarty; S. Dey; S. Santra; P. K. Guha; A.K. Chakraborty; “Facile synthesis of ZnO nanoflowers for Formaldehyde Sensing”, International Conference on Advances in Material Science and Chemistry ICAMSC-2020, 10th -12th August 2020, Kerala, India
3Snehanjan Acharyya; Sayan Dey; Sudip Nag; Prasanta Guha*; “ZnO cladded MnO2 based resistive sensor device for formaldehyde sensing”, IEEE Sensors 2018, New Delhi, India
4Sayan Dey; Sumita Santra; Samit Kumar Ray; Prasanta Kumar Guha*; “Temperature tunable selectivity of NiO/FexNi(1-x)O heterojunction device based VOC sensor”, IEEE Sensors 2018, New Delhi, India
5Sayan Dey*; Sumita Santra; Samit K. Say; Prasanta K. Guha; “Faceted p-type NiO for room temperature NO sensing”, ICONSAT 2018, Bangalore, India
6Sayan Dey*; Sumita Santra; Sabyasachi Sen; Debasree Burman; Samit K. Ray; Prasanta K. Guha; “Photon assisted ultra-selective Formaldehyde sensing by defect induced NiO nanostructured sensing layer”, IEEE Sensors 2017, Glasgow, Scotland
7Sayan Dey*; Sumita Santra; Samit K. Ray; Prasanta K. Guha; “Chemically synthesized CuxNi(1-x)O hierarchical nanostructures as room temperature humidity sensors”, EMRS Spring Meeting 2017, Strasbourg, France
8Anurag Kar*; Sayan Dey; Sumita Santra; Samit K. Ray; Prasanta K. Guha; “RGO/Ni2O3 composites as a multifunctional material for efficient water quality monitoring”, EMRS Spring Meeting 2017, Strasbourg, France
9Shaymasree Gupta Chatterjee*; Sayan Dey; Dhrubajyoti Samanta; Sumita Santra; Somenath Chatterjee; Prasanta K. Guha; Amit K. Chakraborty; Ajoy K. Ray; “A Facile Solid-state Synthesis of Graphene/ SnO2 Nanocomposite for NOx Gas Sensing at low temperature”, IUMRS-ICYRAM 2016, Bangalore, India
10S. Dey*; S. Santra; A. Ghorai; A. Midya; P. K. Guha; S. K. Ray; “Synthesis of RGO/NiO hierarchical nanocomposite for enhanced nitric oxide sensing at room temperature”, IUMRS-ICYRAM 2016, Bangalore, India
11. S. Bhattacharjee; S. Sil; S. Dey; A. Chakrabarti.; “Simulation, design and analysis of a low power MIMO-OFDM system and its implementation on FPGA”, International Conference of RETIS, 2011, Jadavpur University, Kolkata and IEEE XploreTM Digital library
12S. Dey; G. Saha; “Determination and study of a dominant genetic network responsible for the growth of a fungus using the concepts of Bayesian Algorithm”, International conference on systems in medicine and biology (ICSMB 2010), IIT, Kharagpur, India; 74-84, IEEE Catalog No.; CFP1017NPRT and IEEE XploreTM Digital Library

Academic Honors & Awards

  • Fulbright Nehru Postdoctoral Fellowship (awarded by US India Education Federation (USIEF))
  • Innovative Student Projects Award for best thesis- Ph.D. category (awarded by the Indian National Academy of Engineering (INAE))
  • Innovative Student Projects Award for best thesis- M.Tech category (awarded by the Indian National Academy of Engineering (INAE))

Research Scholar

Sl.No. Name of the scholar Joining Completion Research area Co-supervisor
1 Ms. Sukanya Mahalik July 2023 Jan 2027 (approx)  2D inspired TFT based sensors  --
Sl.No. Name of the student Academic year Discipline Research area Co-supervisor
1 Mr. Shreyansh Mishra 2022 - 24 SP&C MOX inspired TFT based heavy metal ion sensor  --
2 Ms. Attadda Kameswaramma 2022 - 24 SP&C ML optimization of selectivity for resistive heavy metal ion sensors Dr. Himanshu P. Padole

Professional Experience

Positions held: 1. Assistant Professor (December 2022 – present), School of Electrical Sciences, IIT Bhubaneswar 2. Visiting Scientist (Fulbright – Nehru Post-Doctoral Fellow) (October 2021 – December 2022), Department of Electrical Engineering, Columbia University in the city of New York, NY, USA 3. Post-Doctoral Fellow (February 2021 – October 2021), Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra 4. Project Research Scientist (January 2021 – February 2021), Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra 5. Junior Research Fellow (July 2015 – December 2015), Department of Physics, Indian Institute of Technology, Kharagpur, Kharagpur 721302, West Bengal 6. Assistant Systems Engineer (March 2012 – August 2013), Tata Consultancy Services Limited., G3 Oval, Unitech, Newtown, Kolkata 700156

Research collaborations

  • Columbia University, USA
  • TU Dresden, Germany
  • Kuwait Institute for Scientific Research (KISR), Kuwait
  • Indian Institute of Technology Bombay¸ India
  • Indian Institute of Technology Kharagpur, India
  • Indian Institute of Science Bangalore, India


  1. Prasanta Kumar Guha, Sayan Dey, Sumita Santra, Samit Kumar Ray, "Doped transition metal oxide based CMOS compatible humidity insensitive nano-sensor for Toluene detection", Indian patent no. 427581, March 2023

Book(s)/Book chapter(s)

  1. Sunipa Roy, Chandan Kumar Ghosh, Sayan Dey, Abhijit Pal, "Solid State Devices and Microelectronics", Bentham Science Publishers, 2023, eISBN: 978-981-5079-87-6, DOI: 10.2174/97898150798761230101
  2. Sayan Dey, Abhijit Narayan Eshore, Chandan Kumar Ghosh, "Nanostructured Thin Films for gas sensing", Comprehensive Materials Processing, 2E (under review)

Other recognitions

  •  Student member, Indian National Academy of Engineering (INAE) (Dec 2020 - Dec 2025)

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