Home List of Titles Microscale golden candock leaves self-aggregated on a polymer surface: raman scattering enhancement and superhydrophobicity
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/196521
- Microscale golden candock leaves self-aggregated on a polymer surface: raman scattering enhancement and superhydrophobicity
- Wang, Wei-Kang; Zheng, Mei-Ling; Chen, Wei-Qiang; Jin, Feng; Cao, Yao-Yu; Zhao, Zhen-Sheng; Duan, Xuan-Ming
- Gold nanoparticles (AuNP's) prepared through a controllable synthesis and aggregation process are attractive for their unique properties that arise from their surface plasmon resonances (SPRs). However, aggregation-controlled AuNP's on amorphous surfaces have not been well explored. In this study, we present a simple in situ synthesis method for preparing AuNP's in which the AuNP's self-aggregate into microscale Candock-leaf-like structures on a polyelectrolyte film (PEF) surface. In this approach, the PEF plays an important role in adsorbing and storing AuCl4- as well as in controlling the release speed of AuCl4- in the preparation process. The mechanism for forming these Candock-leaf-like structures has been illustrated by both the growth process of gold nanoparticles and the Ostwald ripenning of the aggregations. AuNP's with a unique structure exhibited significantly enhanced surface Raman scattering and strong superhydrophobicity.
- Publication type
- Journal article
- Langmuir, Vol. 27, no. 7 (Apr 2011), pp. 3249-3253
- Publication year
- FOR Code(s)
- 0306 Physical Chemistry (Incl. Structural); 0903 Biomedical Engineering
- Agglomeration; Aggregation process; Amorphous surfaces; Controllable synthesis; Enhanced surface; Gold nanoparticles; Growth process; Hydrophobicity; In-situ synthesis; Micro-scales; Nanoparticles; Ostwald ripenning; Polyelectrolyte films; Polymer surfaces; Preparation process; Raman scattering; Self-aggregates; Superhydrophobicity; Surface plasmon resonance; Surface structure
- American Chemical Society
- Publisher URL
- Copyright © 2011 American Chemical Society.
- Peer reviewed