Welcome to the home page of the Paul Braun Research Group at the University of Illinois at Urbana-Champaign. Our group members perform research in the fields of materials chemistry, polymers, biomaterials, organic and inorganic self-assembly, electronic materials and photonics.
Researchers confront optics and data-transfer challenges with 3D-printed lens
Researchers have developed new 3D-printed microlenses with adjustable refractive indices – a property that gives them highly specialized light-focusing abilities. This advancement is poised to improve imaging, computing and communications by significantly increasing the data-routing capability of computer chips and other optical systems, the researchers said.
The study led by University of Illinois Urbana-Champaign researchers Paul Braun and Lynford Goddard and is the first to demonstrate the ability to adjust the direction in which light bends and travels through a lens with sub-micrometer precision.
Read the full story: Researchers confront optics and data-transfer challenges with 3D-printed lens
The results of the study are published in the journal Light: Science and Application: DOI: 10.1038/s41377-020-00431-3
Congratulations to Prof. Paul Braun and Prof. Nancy Sottos!
AAAS Fellows are a distinguished cadre of scientists, engineers and innovators who have been recognized for their achievements across disciplines, from research, teaching, and technology, to administration in academia, industry and government, to excellence in communicating and interpreting science to the public.
|Braun Group Recent Publications|
|Yang, P.V. Braun, N. Miljkovic and W.P. King, Phase Change Material Heat Sink for Transient Cooling of High-Power Devices, Journal of Heat and Mass TransferPhase Change Material Heat Sink for Transient Cooling of High-Power Devices, Journal of Heat and Mass Transfer, 170, 121033 (2021). DOI: 10.1016/j.ijheatmasstransfer.2021.121033|
|Zheng, B. Chen, Y. Xu, N. Fritz, Y. Gurumukhi, J. Cook, M.N. Ates, N. Miljkovic and P.V. Braun, A Gaussian Process-Based Crack Pattern Modeling Approach for Battery Anode Materials Design, Journal of Electrochemical Energy Conversion and Storage, 18, 1, 011011 (2021). DOI: 10.1115/1.4046938|
|P. Sun, X. Li, J. Shao and P.V. Braun, High‐Performance Packaged 3D Lithium‐Ion Microbatteries Fabricated Using Imprint Lithography, Advanced Materials, 33, 1, 2006229 (2021). DOI: 10.1002/adma.202006229|
|C.R. Ocier, C.A. Richards, D.A. Bacon-Brown, Q. Ding, R. Kumar, T.J. Garcia, J. van de Groep, J.-H. Song, A.J. Cyphersmith, A. Rhode, A.N. Perry, A.J. Littlefield, J. Zhu, D. Xie, H. Gao, J.F. Messinger, M.L. Brongersma, K.C. Toussaint Jr., L.L. Goddard and P.V. Braun, Direct laser writing of volumetric gradient index lenses and waveguides, Light Science & Applications 9, 196 (2020). DOI: 10.1038/s41377-020-00431-3|
|S. Kim, B. Lee, J.T. Reeder, S.H. Seo, S.U. Lee, A. Hourlier-Fargette, J. Shin, Y. Sekine, H. Jeong, Y.S. Oh, A.J. Aranyosi, S.P. Lee, J.B. Model, G. Lee, M.H. Seo, S.S. Kwak, S. Jo, G. Park, S. Han, I. Park, H.I. Jung, R. Ghaffari, J. Koo, P.V. Braun, and J.A. Rogers, Soft, skin-interfaced microfluidic systems with integrated immunoassays, fluorometric sensors and impedance measurement capabilities, PNAS, 117, 27906-27915 (2020). DOI: 10.1073/pnas.2012700117|
|J. Liu, J.R. Streufert, K. Mu, T. Si, T. Han, Y. Han, X. Lin, J. Li, and P.V. Braun, Polymer Composites Containing Phase-Change Microcapsules Displaying Deep Undercooling Exhibits Thermal History-Dependent Mechanical Properties, Advanced Materials Technologies, 5, 2000286 (2020) DOI: 10.1002/admt.202000286|
|Z. Zheng, B. Chen, Y. Xu, N. Fritz, Y. Gurumukhi, J. Cook, M. Ates, N. Miljkovic, P.V. Braun, The Impact of Non-uniform Metal Scaffolds on the Performance of 3D Structured Silicon Anodes, 30, 101502 (2020) DOI: 10.1016/j.est.2020.101502|