Additive Integration of Advanced Sensors for Multifunctional Applications

10:00 AM - 11:00 AM
Pooran Joshi, Materials Science and Technology Division
Materials and Chemistry Seminar Series
Building 4500-N, Weinberg Auditorium
Email: Adrian Sabau

Printed electronics are becoming a more and more mature technology every day. The emerging industry of large area manufacturing and organic and printed electronics is bringing about new opportunities for the realization of sensors on unconventional substrates. The main challenge for the sensors integrated on plastic and flexible foils is to establish a complete technology chain: material development, processing and characterization equipment, and production. Our focus is to demonstrate a novel multifunctional sensor platform that will evolve with advances in materials technology, low-cost printing techniques, and co-integration of monitoring, control, and communication circuitry. The integrated sensor technology has the potential to revolutionize diverse technology platforms including building retrofits. Although the focus of the present R&D is the development of a multifunctional sensor platform meeting the needs of future smart buildings; other functions that have economic benefits to the industry and consumer will emerge. The main findings of our development of printed metal interconnect, and additive integration of sensor, antenna, and energy harvesting components are highlighted in this presentation. The impact of the pulse thermal processing technique in realizing low thermal budget integration with optimum performance/cost tradeoff on flexible substrates is also discussed. It is foreseeable that the smart sensors integrated on flexible substrates will evolve towards all printable technological solution taking us towards "peel-and-stick" wireless sensors. Dr. Joshi is a Senior Scientist in the Materials Science & Technology Division at ORNL. Currently, Dr. Joshi's research focuses on the Pulse Thermal Processing technique for advanced manufacturing of materials, flexible electronics manufacturing and applications, thin films and interfaces, and photovoltaics. Dr. Joshi has over twenty years of research and development experience in the fabrication and processing of diverse dielectric, ferroelectric, and semiconductor materials and devices. Dr. Joshi has over ten years of industrial R&D experience in the area of display devices, optoelectronic applications, and flexible electronics. Dr. Joshi has published 2 book chapters, over 40 journal papers and 30 conference presentations. He is the holder of 36 U.S. patents mapping diverse material and device technology areas. Prior to joining ORNL, he was Principal Engineer at SHARP Labs of America (2001-2011). At SHARP Labs, he was the winner of three Inventor of the Year awards for R&D work focused on: Low temperature thin films and TFT device integration, novel plasma synthesis of nc-Si for optoelectronic applications, and high performance thin films for flexible electronics and solar cell applications. Dr. Joshi was awarded Fulbright fellowship to conduct pre-doctoral research at the Pennsylvania State University under INDO-US fellowship program. He was awarded Dr. K. S. Krishnan Gold Medal for highest achievement in the M.Sc. program. He was also the recipient of Delhi University Science Merit scholarship for his performance in the B.Sc. program.


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