The Effect of Nanoscale Confinement on the Collective Electron Transport Behavior in Au Nanoparticles Self‐Assembled in a Nanostructured Polystyrene‐block‐poly(4‐vinylpyridine) Diblock Copolymer Ultra‐thin Film
作者： C.-P. Li , C.-H. Wu , K.-H. Wei , J.-T. Sheu , J. Y. Huang
关键词: Thin film 、 Nanoscopic scale 、 Monolayer 、 Nanoparticle 、 Coulomb blockade 、 Self-assembly 、 Polystyrene 、 Nanotechnology 、 Copolymer 、 Materials science
摘要: This study involves the collective electron transport behavior of sequestered Au nanoparticles in a nanostructured polystyreneblock-poly(4-vinylpyridine). The monolayer thin films (ca. 30 nm) consisting self-assembled 30-nm spherical poly(4-vinylpyridine) domains an polystyrene-block-poly(4-vinylpyridine) diblock copolymer were prepared. From current-voltage characteristics these films, nanodomains was found to be dictated by Coulomb blockade and quasi one-dimensional, as opposed three-dimensional displayed that had been dispersed randomly homo-poly(4-vinylpyridine). threshold voltage composite increased linearly upon increasing inter-nanoparticle distance. tunneling rate constant case confined is eight times larger than distributed it increases amount nanoparticles. phenomenon indicates manipulating spatial arrangement metal can potentially create electronic devices with higher performance.
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