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- Title
Vacancy ordering and lithium insertion in III<sub>2</sub>VI<sub>3</sub> nanowires.
- Authors
Peng, Hailin; Zhang, Xiao; Twesten, Ray; Cui, Yi
- Abstract
Superlattice structures resulting from vacancy ordering have been observed in many materials. Here we report vacancy ordering behavior in III2VI3 nanowires. The formation of layer-like structural vacancies has been achieved during the synthesis of In2Se3 nanowires through a vapor-transport route. Doping In2Se3 nanowires with small amounts of Ga during synthesis can completely change the structural vacancy ordering from a layer-like to a screw-like pattern for (In xGa1− x)2Se3 nanowires. Lithium atoms can fill in the layer-like structural vacancies of In2Se3 nanowires and generate new types of vacancy and lithium atom ordering superlattices. The screw-patterned vacancies of (In xGa1− x)2Se3 nanowires show reversible lithium insertion. Our results contribute to the understanding of structure property correlations of III2VI3 materials used in lithium ion storage, photovoltaics, and phase change memory.
- Publication
Nano Research, 2009, Vol 2, Issue 4, p327
- ISSN
1998-0124
- Publication type
Article
- DOI
10.1007/s12274-009-9030-y