Research Article Cite This: ACS Appl. Mater. Interfaces XXXX, XXX, XXX−XXX
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Highly Sensitive Solvent-free Silver Nanoparticle Strain Sensors with Tunable Sensitivity Created Using an Aerodynamically Focused Nanoparticle Printer Gil-Yong Lee,† Min-Soo Kim,‡ Soo-Hong Min,‡ Hyung-Soo Kim,‡ Ho-Jin Kim,‡ Rusty Keller,§ Jeong-Beom Ihn,§ and Sung-Hoon Ahn*,‡,∥ †
Department of Mechanical Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Republic of Korea Department of Mechanical & Aerospace Engineering and ∥Institute of Advanced Machines and Design (IAMD), Seoul National University, Seoul 08826, Republic of Korea § Boeing Research and Technology, Boeing, Seattle, Washington 98108, United States
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S Supporting Information *
ABSTRACT: We developed and presented highly sensitive solvent-free silver nanoparticle strain sensors fabricated using the aerodynamically focused nanoparticle (AFN) printer. The nanoparticles were printed in various conductive patterns. We explored how printer scan velocity affected pattern geometry and sensor sensitivity. The strain sensors were highly sensitive; the scan velocity afforded tunable sensitivity; and an analytical model predicted the behavior well under low-strain (
