title: Particle lithography-based patterning of polyelectrolyte template films and their application in fabrication of gold/silver nanoparticle assembly.
abstract: The site-specific deposition of polyelectrolytes (PEs) or PE/noble metallic nanoparticle (NP) composites at nanoscale is highly desirable owing to their diverse applications in nanodevices. Herein, we demonstrated a simple yet effective method to fabricate different types of surface micropatterns with PE/noble metallic NP composites via particle lithography. The positively charged PE of poly(diallyldimethylammonium chloride) and negatively charged NPs of gold/silver (Au/Ag) were used as a model system. The layer-by-layer self-assembly technique was employed as the fabricating strategy. The final nanostructures, consisting of Au NP films with inlaid circular vacant island microarrays or Au NP films with inlaid circular Ag NP island microarrays, were fabricated, respectively. Scanning electron microscopy and atomic force microscopy were used to investigate the structural morphology, microstructure, and the NP growth. Furthermore, the surface-enhanced Raman scattering performance has been obtained based on the as-prepared Au/Ag nanopatterns. Our method displayed an excellent opportunity for the simple and effective production of nanopatterns on the surfaces demonstrating significant advantages in designing novel nanodevices.
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
authors: Weidong
authors: W
authors: Ruan
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
authors: Tieli
authors: T
authors: Zhou
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China; School of Pharmaceutical Sciences, Changchun University of Traditional Chinese Medicine, Changchun 130117, PR China.
authors: Ge
authors: G
authors: Hui
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
authors: Yue
authors: Y
authors: Wang
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
authors: Xiaoli
authors: X
authors: Chong
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
authors: Xu
authors: X
authors: Wang
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
authors: Wei
authors: W
authors: Song
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China.
authors: Xiaoxia
authors: X
authors: Han
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China. Electronic address: zhaob@mail.jlu.edu.cn.
authors: Bing
authors: B
authors: Zhao
mesh_terms: D006046:Gold / Q000737:chemistry*; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D008567:Membranes, Artificial; D012834:Silver; D006046:Gold
keywords: Assembly; Film; Nanoparticle; Pattern; Polyelectrolyte