摘要
Ordered wire-like cobalt nano-arrays were prepared via electrodeposition of the metal within the pores of anodically-grown porous anodic aluminum oxide (AAO) membranes. Measurements with UV/VIS/NIR spectrophotometer show that the optical properties of the Co/AAO composites depend on the length and the diameter of the Co nano-wires. As the Co composition increases, the absorption band-edge is strongly red-shifted (283-398 nm) and the reflectance of the composite changes from 70% to 6%. Meanwhile the composite exhibits the optical features of a semiconductor with direct band gap.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 1599-1603 |
| 页数 | 5 |
| 期刊 | Wuli Xuebao/Acta Physica Sinica |
| 卷 | 53 |
| 期 | 5 |
| 出版状态 | 已出版 - 5月 2004 |
| 已对外发布 | 是 |