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Home / Journal of Nanoscience and Nanotechnology, Volume 19, Number 3

Sintering Behavior of Copper Nanoparticle Ink by Laser in Air

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This paper presents a sintering technique using a laser in air which can provide heat for a few hundred milliseconds. In this study, a laser having a wavelength of 532 nm and a maximum-power output of 5 W was used. The effects of irradiated laser power at 104–282 W/cm2 and sintering time of 50–330 milliseconds applied on spin-coated copper nanoparticle ink were investigated. The residual organic agent, oxidation, and specific resistance of the laser-sintered copper nanoparticle ink were characterized, and the sintering behavior was analyzed. For application, laser-sintered copper nanoparticle ink was confirmed to offer acceptable performance as a source and drain electrode in a thin-film transistor.

Keywords: Copper Ink; Laser; Printed Electronics; Residual Organics; Sintering

Document Type: Research Article

Affiliations: 1: Micro/Nano Scale Manufacturing R&D Group, Korea Institute of Industrial Technology, Ansan-si, Gyeonggi-do, 15588, Republic of Korea 2: School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon-si, Gyeonggi-do, 16419, Republic of Korea 3: Department of Electronic Engineering, Hanyang University, Seoul, 04763, Republic of Korea

Publication date: March 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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