The Organic Electronics group is dedicated to the fabrication of highly efficient organic field-effect transistors (OFETs) and various OFET-based sensors. Our group has successfully developed several high-performance devices with exceptional ambient stability, demonstrating significant potential for flexible and stretchable applications. Notably, some of our devices have been utilized as highly sensitive gas sensors with the fastest response times. We are currently focusing on the fabrication of OFETs specifically designed for flexible and stretchable applications and are exploring their potential in biomedical applications.

Additionally, our group is deeply involved in studying the fundamental physics at the surfaces and interfaces of different organic layers used in these devices.

We welcome active collaborations with other groups interested in synthesizing active materials with diverse functionalities.

All Publications

Organic field-effect transistors as high performance humidity sensors with rapid response, recovery time and remarkable ambient stability by V.V. Subbarao, Murali Gedda, Parameswar Krishnan Iyer, Dipak Kumar Goswami Organic Electronics 32 169-178 (2016)
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 by Nimmakayala V V Subbarao , Murali Gedda , Parameswar Krishnan Iyer and Dipak K. Goswami ACS Appl. Mater. Interfaces 7 - (2015)
Local Diffusion Induced Roughening in Cobalt Phthalocyanine Thin Film Growth by Murali Gedda, Nimmakayala V V Subbarao, and Dipak K. Goswami Langmuir 30 8735-8740 (2014)
Roughening in Electronic Growth of Ag on Si(111)-(7×7) Surfaces by Arindam Pal, J. C. Mahato, B. N. Dev and Dipak K. Goswami ACS Applied Materials and Interfaces 5 - (2013)
Evidence for layer-dependent Ehrlich-Schwöbel barrier in organic thin film growth by X. Zhang, E. Barrena, Dipak K. Goswami, D. G. de Oteyza, C. Weis and H. Dosch Phys. Rev. Lett. 103 - (2009)
Film morphology, performance and stability of n-channel organic transistors based on novel perylene carboxylic diimide derivatives. by R. T. Weitz, K. Amsharov, U. Zschieschang, E. V. Barrena, Dipak K. Goswami, M. Burghard, H. Dosch, M. Jansen and H. Klauk J. Am. Chem. Soc. 130 4637- 464 (2008)
Preferential heights on growth of Ag island on Si(111)-(7x7) surfaces. by Dipak K. Goswami, K. Bhattacharjee, B. Satpati, S. Roy, P. V. Satyam, B. N. Dev Surf. Sci. 601 603-608 (2007)
The controlled evolution of a polymer single crystal by X. Liu, Y. Zhang, Dipak K. Goswami, J. S. Okasinski, K. Salaita, P. Sun, M. J. Bedzyk and C. A. Mirkin Science 307 - (2005)
Nanoscale self-affine surface smoothing by ion bombardment. by D. K. Goswami, and B. N. Dev Phys. Rev. B 68 - (2003)

Completed Projects

Principal Investigator

Infrastructure for Sensor Fabrication Ministry of Electronics and Information Technology
Infrastructure for Sensor Fabrication Ministry of Electronics and Information Technology
Large-Scale Fabrication of OFET-Based Temperature and Humidity Sensors for Smart Spirometer Integration Ministry of Electronics and Information Technology
Large-Scale Fabrication of OFET-Based Temperature and Humidity Sensors for Smart Spirometer Integration Ministry of Electronics and Information Technology
Nanotechnology for sensors in healthcare, intelligent environmental monitoring and diagnostics (NANO-SHIELD) Ministry of Electronics and Information Technology
OptiBreath-_Fabrication of Compact CPAP-BiPAP System with Automatic Oxygen Enrichment Technology Ministry of Electronics and Information Technology

Co-Principal Investigator

Development of Polymer Composite-Based Strain Sensors Ministry of Electronics and Information Technology
Development of Polymer Composite-Based Strain Sensors Ministry of Electronics and Information Technology
Development of sensor system to monitor indoor and outdoor air quality Ministry of Electronics and Information Technology
Differential diagnostics of infectious diseases on a multiplexedlateral flow assay platform using gargle samples Ministry of Electronics and Information Technology
Multi-level Al based Anemia screening technology with a combination of non-invasive and minimally invasive devices for Extreme Point of Care settings Ministry of Electronics and Information Technology
Photoresponsive Molecular Materials: Designs for Actuator and Qubit Control Department of Science and Technology (DST)
Photoresponsive Multifunctional Molecular Materials and Nanostructures: a systematic approach towards developing actuator and luminescent nanothermometry Science and Engineering Research Board (SERB)
Photoresponsive Multifunctional Molecular Materials and Nanostructures: a systematic approach towards developing actuator and luminescent nanothermometry Anusandhan National Research Foundation (ANRF)
Super-elastic ultrasoft rubber-based piezoresistive sensors and actuators for soft robotic applications IIT KHARAGPUR
Utilizing Emergent Percolation Phenomena towards Flexible Electronics Scheme for Promotion of Academic and Research Collaboration (SPARC), Apex Committee of SPARC, Ministry of Education