title: Facile room temperature deposition of gold nanoparticle-ionic liquid hybrid film on silica substrate.
abstract: This work presents facile synthesis of gold nanoparticle (Au NP)-ionic liquid hybrid film of <10nm by a simple two-step process at room temperature by deposition of Au NPs suspended in 1-hexyl-1methyl-pyrolidinium bromide, on Si (111) substrates. FTIR results demonstrated that ionic liquid properties remain unaltered during and after Au NP synthesis, and even coating on Si (111) substrate. XRD, XPS, and XAS spectral data confirm the presence of Au(0) while EXAFS data indicated the presence of small particles or incomplete surface species. Cross-sectional analysis using FE-SEM and edge length measurement using AFM showed that the film thickness is ca 10nm.
authors.affiliation: Department of Bioprocess Engineering, Chonbuk National University, Jeonbuk 561-756, Republic of Korea.
authors.forename: S
authors.initials: S
authors.lastname: Krishnamurthy
authors.affiliation: Division of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonbuk 561-756, Republic of Korea. Electronic address: chemkishore@gmail.com.
authors.forename: D Harikishore Kumar
authors.initials: DH
authors.lastname: Reddy
authors.affiliation: Department of Chemistry and London Centre for Nanotechnology, University College London, London, WC1E 6BT, UK.
authors.forename: G
authors.initials: G
authors.lastname: Sankar
authors.affiliation: Department of Bioprocess Engineering, Chonbuk National University, Jeonbuk 561-756, Republic of Korea; Division of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonbuk 561-756, Republic of Korea. Electronic address: ysyun@jbnu.ac.kr.
authors.forename: Yeoung-Sang
authors.initials: YS
authors.lastname: Yun
keywords: Gold; Ionic-liquid; Nanoparticle; Room-temperature; Thin-film