Influence of Au Nanoparticle Shape on Au@Cu2O Heterostructures

Article English OPEN
Jie Zhu ; Na Lu ; Wei Chen ; Lina Kong ; Yun Yang ; Dekun Ma ; Shaoming Huang (2015)
  • Publisher: Hindawi Limited
  • Journal: Journal of Nanomaterials (issn: 1687-4110, eissn: 1687-4129)
  • Related identifiers: doi: 10.1155/2015/389790
  • Subject: Technology (General) | T1-995 | Article Subject

Synthesis of metal-semiconductor heterostructures may allow the combination of function of the corresponding components and/or the enhanced performance resulting from the interactions between all the components. In this paper, Au@Cu2O core-shell heterostructures are prepared by a seed-growth method, using different-shaped Au nanocrystals as the seeds such as nanorods, octahedra, decahedra, dots, and nanocubes. The results revealed that the final structure of Au@Cu2O was greatly influenced by the shape of the seeds used. Exposure of Cu2O{111} and Cu2O{001} favored when the overgrowth happened on Au{111} and Au{001} surface, respectively. The size of the product can also be tuned by the amount of the seeds. The results reported here provide a thinking clue to modulate the shape and size of core-shell nanocrystals, which is useful in developing new materials with desired performance.
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