Jung, Hyun Kyu Lee, Sang Jin Han, Dongwook Hong, A-Ra Jang, Ho Seong Lee, Seung Han Mun, Jeong Heum Lee, HanJin Han, Seung Ho Yang, Daejin Kim, Dong Hun 2024-01-19T18:30:42Z 2024-01-19T18:30:42Z 2021-09-04 2020-01-10 0013-4686 https://pubs.kist.re.kr/handle/201004/119094 Herein, we reported a facile synthesis of nanocomposite thin films containing Au nanoparticles within a NiO matrix using a simple and low-cost deposition apparatus. Au nanoparticle contents were controlled by changing the exposed areas of the nickel foil on the Au foil during sputtering. Surface plasmon resonance peaks were observed in the absorption spectrum, indicating that nano-sized Au particles were formed in the NiO matrix, which was also confirmed by electron microscopy and X-ray photoelectron spectroscopy. Highly conductive Au nanoparticles in NiO improved the electrical conductivity, and the Au-incorporated NiO nanocomposite thin film electrode exhibited greatly enhanced pseudo-capacitive property with a 1.5 times higher specific capacity than that of the pure NiO electrode even if it is not totally capacitive. This study provides a novel and facile method for the direct preparation of metal nanoparticles embedded in oxide nanocomposite films, which will offer exciting opportunities in supercapacitors. In addition, the prepared electrodes showed enhanced electrochromic capabilities and coloration efficiency, suggesting their potential for application in electrochromic smart glass monitoring by color change for energy storage. (C) 2019 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD NICKEL-OXIDE PERFORMANCE NANOPARTICLES GOLD NANOCRYSTALS ARCHITECTURE COMPOSITE DESIGN Au-incorporated NiO nanocomposite thin films as electrochromic electrodes for supercapacitors Article 10.1016/j.electacta.2019.135203 1 ELECTROCHIMICA ACTA, v.330 ELECTROCHIMICA ACTA 330 scie scopus 000501468400008 2-s2.0-85074592766 Electrochemistry Electrochemistry Article NICKEL-OXIDE PERFORMANCE NANOPARTICLES GOLD NANOCRYSTALS ARCHITECTURE COMPOSITE DESIGN Au nanoparticles NiO Supercapacitors Electrochromic devices