@article{e4109d605ad94d5988057ce29dfb0b9c,
title = "Direct synthesis of monolayer gold nanoparticles on epoxy based photoresist by photoreduction and application to surface-enhanced Raman sensing",
abstract = "The photoreduction method is a potential method in terms of simplification, speed and cost of the process. This paper presents a simple and novel method for the direct synthesis of a gold nanoparticle monolayer with a droplet of gold precursor on the surface of SU-8 under UV exposure. Photoreduction ability on different polymer surfaces with various photoinitiator concentrations was investigated. The horizontal and vertical distributions of reduced nanoparticles were examined by using a scanning electron microscope and a transmission electron microscope, and crystalline property was verified through energy dispersive X-ray spectroscopy. The influence of SU-8 initial curing time and reduction repetition times on nanoparticle sizes and densities was investigated. The same photoreduction process is applicable to the surface of SU-8 nanostructures. The use of SU-8 nanopillars as a photoreduction substrate can provide a high specific surface area for improving the density of hot spots in the application of surface-enhanced Raman spectroscopy.",
author = "Chen, {Yi Jui} and Chang, {Wen Huei} and Li, {Chia Ying} and Chiu, {Yi Chun} and Huang, {Chih Chia} and Lin, {Chun Hung}",
note = "Funding Information: This study was supported by the Ministry of Science and Technology (MOST) of Taiwan (MOST 108-2221-E-006-206, MOST 108-2113-M-006-012-MY3, and MOST 108-2622-M-006-001-CC1) and the Department of Health, Taipei City Government (TCH No. 10601-62-015). The authors thank Center for Micro/Nano Science and Technology of the National Cheng Kung University and Taiwan Semiconductor Research Institute for providing equipment and technical support. Funding Information: This study was supported by the Ministry of Science and Technology ( MOST ) of Taiwan (MOST 108-2221-E-006-206 , MOST 108-2113-M-006-012-MY3 , and MOST 108-2622-M-006-001-CC1 ) and the Department of Health, Taipei City Government (TCH No. 10601-62-015) . The authors thank Center for Micro/Nano Science and Technology of the National Cheng Kung University and Taiwan Semiconductor Research Institute for providing equipment and technical support. Publisher Copyright: {\textcopyright} 2020 The Authors",
year = "2021",
month = jan,
day = "1",
doi = "10.1016/j.matdes.2020.109211",
language = "English",
volume = "197",
journal = "Materials and Design",
issn = "0264-1275",
publisher = "Elsevier BV",
}