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  • April 29th, 2022: Undergraduate researcher Adeline Ripberger has been awarded a 2022-2023 E. Wayne Kay Undergraduate Scholarship from the Society of Manufacturing Engineers. This award acknowledges the work she has been doing, and will continue doing over the next year, on scalable 3D printing of thermosets and functional materials. Her past work has also been supported by a NSF funded REU grant.

 

  • April 8th, 2022: PhD student Jeremy Cleeman has been awarded a prestigious Graduate Research Fellowship (GRFP) from the National Science Foundation. This competitive grant supports outstanding graduate students who are pursuing research-based graduate degrees at US institutions. Jeremy is working on new paradigms in Large Area Additive Manufacturing and on in-situ control of such processes.

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  • Nov. 16th, 2021: Our work on multiscale modeling of process-structure-property in nanowire fusion has been published in ACS Applied Materials and Interfaces. We have created the first mathematical framework for a-priori determination of microstructure and resistivity of large inch-scale nanowire ensembles, as a function of the externally imposed external thermal history. This approach couples molecular dynamics and analytical models of sintering, to network resistivity models, by introducing resistivity and neck growth master curves.

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  • July 11th, 2021: Our paper on original atomistically-informed analytical models for nanowire fusion has been published in Advanced Theory and Simulations. This work creates an approach for modeling nanowire fusion that is widely applicable across multiple printed electronics technologies, while achieving 6 orders of magnitude higher computational efficiency and accessing previously unreachable length and time scales of simulation.

 

  • Our paper on eco-friendly inkjet printing of fungal biopigments for coloring of fabrics has been published in the International Journal of Precision Engineering- Green Technology.

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  • Our paper on direct printing of nanoparticle based negative-temperature-coefficient thermistors on fabrics has been published in Advanced Functional Materials. We worked with Dr. Chih-hung Chang at Oregon State University to show performance in parity with commercial thermistors without damaging the thermally sensitive fabrics.

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  • Harish published his work on the hybrid Form-Fuse process for conformal electronics in the Journal of Manufacturing Processes. This paper shows the signficant role of mixing nanoparticles of different shapes on avoiding blowoff defects and expanding the previously narrow processing window in our Form-Fuse process. Congratulations Harish!

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  • Naim finished his PhD qualifiers. Congratulations Naim !

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  • We have published an exciting new discovery in sintering/fusion of metal nanowires. We found that atomic scale rearrangements cause unprecedented self-alignment of nanowires, leading to new opportunities for rational design of nanowire-based electronics.

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  • We published a review paper on microfluidics based exfoliation for 2D materials in collaboration with Dr. Chih-hung Chang.

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  • Harish finished his PhD proposal. He is expected to graduate within the year. Congratulations!

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  • We received a new grant from the National Science Foundation for seamless additive manufacturing of 3D electronics inside 3D polymer structures. We aim to break performance-cost-material tradeoffs in existing 3D printing of structural electronics, with the goal of achieving parity with conventional 2D electronics.

 

  • Jeremy Cleeman will he joining our lab as a PhD student. He has been working in our lab for nearly two years as a UG during which he has published both journal and conference papers. Welcome Jeremy !

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  • Harish Devaraj finished his PhD qualifiers. Congratulations Harish !

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  • Jeremy Cleeman (UG) received the NASA NJSGC scholarship, the J.J. Slade Scholarship, and published his first journal paper on structural electronics.

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  • Our work on pulsed light unprinting of paper has received media attention.

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  • Harish, Hyun-Jun and Jeremy presented their work on IPL at the NAMRC/MSEC 2019 conference.

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  • Hyun-Jun's work has been accepted to ACS Applied Materials and Interfaces. His work shows how tuning the nanomaterial morphology in silver nanoparticles can simultaneously control diffusion rates, interfacial resistivity and self-limiting behavior in pulse light sintering. Hyun-Jun is a postdoc in our lab. For more, see, DOI 10.1021/acsami.8b17644.

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