Spontaneous self-organization of Cu2O/CuO core-shell nanowires from copper nanoparticles

Jhong Yi Ji, Po Hsun Shih, Chun Chuen Yang, Ting Shan Chan, Yuan Ron Ma, Sheng Yun Wu

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We report on the formation and spontaneous self-organization of Cu 2O/CuO core-shell nanowires from individual copper nanoparticles. The growth process is interpreted using the results of time-dependent in situ x-ray diffraction. High-resolution transmission electron microscopy is used to observe the intermediate state of pearl-necklace-like aggregates that form a chain-like configuration of Cu2O nanoparticles intertwined into nanowires. The existence of an amorphous CuO shell is confirmed by the XANES technique and explained through an intensity simulation using a proposed core-shell nanowire model.

Original languageEnglish
Article number045603
Issue number4
StatePublished - 2010


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