title: Interface-controlled synthesis of heterodimeric silver-carbon nanoparticles derived from polysaccharides.
abstract: Hybrid nanoparticles composed of multiple components can offer unique opportunities for understanding the nanoscale mechanism and advanced material applications. Here, we report the synthesis of heterodimeric silver-carbon dot nanoparticles (Ag-CD NPs) where the Ag NP is grown on the surface of CDs derived from polysaccharides, such as chitosan and alginate, through the photoelectron transfer reaction between CD and Ag(+) ions. The nanoscale interface between the Ag NPs and the CDs is highly tunable depending on the precursor of the CDs and the amount of additives, resulting in fine modification of photoluminescence of the CDs as well as the related surface plasmon resonance of the Ag NPs. This result demonstrates the critical role of the interface between the hybrid nanoparticles in governing the electrical and optical properties of respective nanoparticles.
authors.affiliation: Department of Chemistry and Department of Energy Engineering and ‡School of Materials Science and Engineering and Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Korea.
authors.forename: Yuri
authors.initials: Y
authors.lastname: Choi
authors.forename: Gyeong Hee
authors.initials: GH
authors.lastname: Ryu
authors.forename: Sa Hoon
authors.initials: SH
authors.lastname: Min
authors.forename: Bo Ram
authors.initials: BR
authors.lastname: Lee
authors.forename: Myoung Hoon
authors.initials: MH
authors.lastname: Song
authors.forename: Zonghoon
authors.initials: Z
authors.lastname: Lee
authors.forename: Byeong-Su
authors.initials: BS
authors.lastname: Kim
mesh_terms: D002244:Carbon / Q000737:chemistry*; D019281:Dimerization; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D011134:Polysaccharides; D012834:Silver; D002244:Carbon
keywords: carbon dot; heterodimeric nanoparticle; interface; silver nanoparticle