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D. K. Goswami

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Ph.D position
Highly motivated students with Physics / Materials Science / Chemistry background interested to work on organic semiconducting thin films, nanostructures and organic electronic devices can contact me. CSIR NET / DST inspire fellow would be preferable.

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Research Areas
  • Flexible and Stretchable Organic Electronic Devices
  • Organic Field-Effect Transistors
  • Bio-electronic Devices
  • Affordable Healthcare Devices
  • Surfaces, Interfaces and Nanoscale Sciences
  • X-ray Physics
  • Ion-Solid Interactions
    Recent Development in Organic Electronics Lab

    Technology Development:

    1. SenFlex.T: A Smart Mask / Spirometer has been developed for the detection of chronic obstructive pulmonary diseases (COPD) using a flexible OFET based temperature (T) sensors. (Validation started). This is an affordable solution of gold standard (Spirometer) of COPD detection and management as internet-of-medical things (IoMT) for home use.
    Following start-up has been incubated to commercialize the COPD detection and management system.

    Startup name: SenFlex Innovation Pvt. Ltd.
    Patent no: 201831004408

    2. SenFlex: OFM: Development of an automatic oxygen flow meter (OFM) that detects the oxygen flow rate automatically depending on the patient oxygen saturation level. Prototype has been developed. We are waiting for ethical clearance to start validation. (Patent filling under process) – is being supported by ICMR.

    3. SenFlex.P: Development of a portable SARS-CoV-2 detection system using OFET based sensors from saliva sample. Prototype has been developed. Validation/testing under progress. (Application No: 202131031170 – OFET based protein (P) sensors using ACE2 as receptor molecule).

    4. SenFlex.P: Development of blood albumin detection system for point-of-care (POC) application (Patent submission under process – OFET based protein (P) sensor with peptide as receptor molecule).
    Selected Recent Publications
  • Arindam Pal, Murali Gedda, and Dipak K. Goswami, (2022), PTCDI-Ph Molecular Layer Stack-Based Highly Crystalline Microneedles as Single-Component Efficient Photodetector, ACS Appl. Electron. Mater. 4, 946–954.

  • Suman Mandal, Ajoy Mandal, Shiv Prakash Verma and Dipak K. Goswami, (2021), Interface engineering of moisture-induced ionic albumen dielectric layers through self-crosslinking of cysteine amino acids for low voltage, high-performance organic field-effect transistors, Nanoscale, 13, 11913

  • Arnab Ghosh, Himanshu Saini, Arijit Sarkar, Puspendu Guha, Aneeya K. Samantara, Ranjit Thapa, Suman Mandal, Ajoy Mandal, J.N. Behera, Samit K. Ray, Dipak K. Goswami, (2021), Nitrogen vacancy and hydrogen substitution mediated tunable optoelectronic properties of g-C3N4 2D layered structures: Applications towards blue LED to broad-band photodetection, Applied Surface Science, 556, 149773

  • Suman Mandal, Ajoy Mandal, Gourhari Jana, Samik Mallik, Satyajit Roy, Arnab Ghosh, Pratim Kumar Chattaraj, and Dipak K. Goswami, (2020), Low Operating Voltage Organic Field-Effect Transistors with Gelatin as a Moisture-Induced Ionic Dielectric Layer: The Issues of High Carrier Mobility, ACS Appl. Mater. Interfaces 12, 19727−19736

  • Suman Mandal, Satyajit Roy, Ajoy Mandal, Tanmay Ghoshal, Gangadhar Das, Arnab Singh, and Dipak K. Goswami, (2020), Protein-Based Flexible Moisture-Induced Energy-Harvesting Devices as Self-Biased Electronic Sensors, ACS Appl. Electron. Mater. 2, 780−789

  • Suman Mandal, Madhuchanda Banerjee, Satyajit Roy, Ajoy Mandal, Arnab Ghosh, Biswarup Satpati and Dipak K. Goswami, (2019) Organic Field-Effect Transistor-Based Ultrafast, Flexible, Physiological-Temperature Sensors with Hexagonal Barium Titanate Nanocrystals in Amorphous Matrix as Sensing Material, ACS Appl. Mater. Interfaces, 11, 4193−4202

  • N. V.V. Subbarao, M. Gedda, P. K. Iyer, Dipak K. Goswami, (2016), Organic field-effect transistors as high-performance humidity sensors with rapid response, recovery time and remarkable ambient stability, Organic Electronics, 32, 169–178

  • N. V V Subbarao, M. Gedda, P. K. Iyer and Dipak K. Goswami, (2015), Enhanced environmental stability induced by effective polarization of a polar dielectric layer in tri-layer dielectric system of organic field-effect transistors: a quantitative study, ACS Appl. Mater. Interfaces, 7, 1915−1924

  • Murali Gedda, Nimmakayala V V Subbarao, and Dipak K. Goswami, (2014), Local Diffusion Induced Roughening in Cobalt Phthalocyanine Thin Film Growth, Langmuir, 30, 8735-8740
    News in the group
  • We incubated a start-up to commercialize the COPD detection and management system.
    Startup name: SenFlex Innovation Pvt. Ltd.


    Patent no: 201831004408

  • SenFlex team has developed a automatic oxygen therapy system for the home and hospital treatment of patients with respiratory dysfunction

  • Research: Ultra-precession, ultra-flexible Temperature sensors has been fabricated and tested. [Ref. ACS Appl. Mater. Interfaces, 2019, 11 (4), pp 4193–4202, Patent pending]

  • Protptype for Sleep Apnea detection system is ready for testing.

  • ORELA group's First Start-up

    Senflex Innovation Pvt. Ltd.

    Smart Spirometer (An IoT based diagnostic intervension of Chronic Obstructive Pulmonary Diseases (COPD))
    Edited Volume [as Guest Editor]
    Advanced Nanomaterials and Nanotechnology
    Proceedings in Physics, Vol. 143 (2013)
    Publisher: Springer
    ISBN: 978-3-642-34216-5
      Journal of Experimental Nanoscience
    Vol. 8, Issue: 3 (2013)
    Publisher: Taylor & Francis
    ISSN: 1745-8080 (Print), 1745-8099 (Online)
      International Journal of Nanoscience
    Vol. 10 (2011)
    Publisher: World Scientific
    ISSN: 0219-581X
    AIP Proceedings (ICANN-2009)
    Vol. 1276 (2010)
    Publisher: American Institute of Physics
    ISBN: 978-0-7354-0825-8
    Past Major Activities

    XXth International Workshop on Physics of Semiconductor Devices: IWPSD 2019 December 17-20, 2019 organized by SNB Centre for Basic Sciences, IIT Kharagpur and SSD
    Organizing Joint-Secretary, Convener of Photovoltaics, Flexible and Organic Devices

    Emerging Trends in the Physics of Surfaces, Interfaces and Nanostructures (ET-PSIN), Nov 24-25, 2017
    Organizing Joint-Convener

    Third International Conference on Advanced Nanomaterials and Nanotechnology (ICANN-2013), Dec 1-3, 2013 organized by Center for Nanotechnology, IIT Guwahati.
    Organizing Convener

    Second International Conference on Advanced Nanomaterials and Nanotechnology (ICANN-2011), Dec 8-10, 2011 jointly organized by Department of Physics and Center for Nanotechnology, IIT Guwahati.
    Organizing Chairman

    First International Conference on Advanced Nanomaterials and Nanotechnology (ICANN-2009) was organized on Dec 9 - 11, 2009 jointly organized by Department of Physics and Center for Nanotechnology, IIT Guwahati.
    Organizing Convener