| Title: | Scalable Alignment and Selective Deposition of Nanoparticles for Multifunctional Sensor Applications |
| Author(s): | Jambhulkar S; Xu W; Ravichandran D; Prakash J; Mada Kannan AN; Song K; |
| Address: | "The Polytechnic School, Ira A. Fulton Schools of Engineering, Arizona State University, Mesa, Arizona 85281, United States. The Polytechnic School, School for Engineering of Matter, Transport and Energy, Ira A. Fulton Schools of Engineering, Arizona State University, Mesa, Arizona 85212, United States" |
| DOI: | 10.1021/acs.nanolett.9b05245 |
| ISSN/ISBN: | 1530-6992 (Electronic) 1530-6984 (Linking) |
| Abstract: | "Here reported is the layer-by-layer-based advanced manufacturing that yields a simple, novel, and cost-effective technique for generating selective nanoparticle deposition and orientation in the form of well-controlled patterns. The surface roughness of the three-dimensionally printed patterns and the solid-liquid-air contact line, as well as the nanoparticle interactions in dipped suspensions, determine the carbon nanofiber (CNF) alignment, while the presence of triangular grooves supports the pinning of the meniscus, resulting in a configuration consisting of alternating CNF and polymer channels. The polymer/nanoparticle composites show 10 times lower resistance along with the particle alignment direction than the randomly distributed CNF networks and 6 orders of magnitude lower than that along the transverse direction. The unidirectional alignment of the CNF also demonstrates linear piezoresistivity behavior under small strain deformation along with high sensitivity and selectivity toward volatile organic compounds. The reported advanced manufacturing shows broad applications in microelectronics, energy transport, light composites, and multifunctional sensors" |
| Keywords: | additive manufacturing microelectronics multifunctional sensors nanocomposite unidirectional assembly; |
| Notes: | "PubMed-not-MEDLINEJambhulkar, Sayli Xu, Weiheng Ravichandran, Dharneedar Prakash, Jyoti Mada Kannan, Arunachala Nadar Song, Kenan eng 2020/04/03 Nano Lett. 2020 May 13; 20(5):3199-3206. doi: 10.1021/acs.nanolett.9b05245. Epub 2020 Apr 6" |
