-sintering process may be the selective heating of a thin film with
-sintering procedure is definitely the selective heating of a thin film with big light absorption coefficients, when a transparent substrate will not heat by the IPL source. Most study on photo-sintering has utilised a xenon flash lamp as a light source. Even so, the xenon flash lamp requires instantaneous higher energy and is unsuitable for huge location applications. In this work, we developed a new photo-sintering program utilizing a high-power ultraviolet light emitting diode (UV-LED) module. A LED light source has a lot of merits including low energy consumption and potential large-scale application. The silver nanoparticles ink was inkjet-printed on a polyethylene terephthalate (PET) and photo-sintered by the UV-LED module using the wavelength of 365 and 385 nm. The electrical resistivity as low as 5.44 10-6 m (just about three occasions compared to value of bulk silver) was accomplished at optimized photo-sintering circumstances (wavelength of 365 nm and light intensity of 300 mW/cm2 ). Key phrases: silver thin film; photo-sintering; ultraviolet light emitting diode (UV-LED); low temperature procedure; versatile substrateCitation: Kim, M.; Jee, H.; Lee, J. Photo-Sintered Silver Thin Films by a High-Power UV-LED Module for Versatile Electronic Applications. Nanomaterials 2021, 11, 2840. https:// doi.org/10.3390/nano11112840 Academic Editor: Aurora Rizzo Received: 31 August 2021 Accepted: 20 October 2021 Published: 25 October1. Introduction For decades, printed electronics technologies has been developed with materials like metal nanoparticles ink, non-contact technology like drop-on-demand inkjet technology for printing materials on any substrate, and post-treatment Oxyfluorfen Formula course of action in order to obtain very good properties from materials [1]. In particular, a new frontier of printed electronics would be to print flexible and stretchable electronic devices for wearable electronics [91]. These developments are expected to offer you many positive aspects for example flexibility, low cost, and simple method compared with to existing processes in industry. Lately, due to the developments, printed electronics have applied to radio-frequency identification (RFID) tags, display, and numerous types of sensors [12,13]. Conductive inks based on very concentrated metal nanoparticles have particular physical properties distinctive from the bulk metal. One example is, the metal nanoparticles with high surface to mass ratio have higher absorption and low melting point in comparison to the bulk metal. Normally, since the metal nanoparticles inks might be polarized by electromagnetic wave propagating along metal-solvent dielectric boundary, these particles have plasmon resonance peaks depending on pAurintricarboxylic acid Inhibitor article size and shape, dielectric continuous of external solvent and these particles, and substrate optical properties [14]. In certain, the metallic particles is usually shown to possess stronger absorption than the light incident at ultraviolet frequencies [15]. Normally, regular thermal processes are extremely tough to apply to flexible polymer substrates given that higher temperature would destroy the substrate and inert gas for fantastic electrical properties. Hence, different techniques happen to be made use of to sinter silver nanoparticles,Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.Copyright: 2021 by the authors. Licensee MDPI, Basel, Switzerland. This short article is definitely an open access article distributed under the terms and situations on the Inventive Commons Attribution (CC BY) lice.
