TY - JOUR
T1 - Scalable Alignment and Selective Deposition of Nanoparticles for Multifunctional Sensor Applications
AU - Jambhulkar, Sayli
AU - Xu, Weiheng
AU - Ravichandran, Dharneedar
AU - Prakash, Jyoti
AU - Mada Kannan, Arunachala Nadar
AU - Song, Kenan
N1 - Funding Information:
This work is funded by Arizona State University (ASU) startup funding and the Global Sport Institute seed funding. We thank Dr. Bhate from 3DX research for the use of Form 3 SLA printing unit and Dr. K. Rykaczewski for the use of Rame Hart contact angle goniometer at ASU.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/5/13
Y1 - 2020/5/13
N2 - 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.
AB - 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.
KW - additive manufacturing
KW - microelectronics
KW - multifunctional sensors
KW - nanocomposite
KW - unidirectional assembly
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U2 - 10.1021/acs.nanolett.9b05245
DO - 10.1021/acs.nanolett.9b05245
M3 - Article
C2 - 32233441
AN - SCOPUS:85084695481
SN - 1530-6984
VL - 20
SP - 3199
EP - 3206
JO - Nano Letters
JF - Nano Letters
IS - 5
ER -