Polyoxometalate-assisted electrochemical deposition of ZnO spindles in an ionic liquid
- Resource Type
- Article
- Authors
- Ju, Mingliang; Li, Qiuyu; Gu, Jianmin; Xu, Rui; Li, Yangguang; Wang, Xinlong; Wang, Enbo
- Source
- Materials Letters. Mar2010, Vol. 64 Issue 5, p643-645. 3p.
- Subject
- *POLYOXOMETALATES
*ZINC oxide
*ELECTROCHEMISTRY
*IONIC liquids
*NANOPARTICLES
*SEMICONDUCTORS
*PHOTOLUMINESCENCE
*ULTRAVIOLET radiation
- Language
- ISSN
- 0167-577X
Abstract: With the assistance of polyoxometalate (POM), ZnO spindles have been successfully synthesized in ionic liquid by electrochemical deposition. The as-obtained ZnO spindles are composed of small nanoparticles and have a porous structure with a specific surface area of 97.95m2/g. Parallel experiments were also performed to understand the formation mechanism of the spindle-like ZnO. The experimental results showed that POM played a key role for the formation of the spindle-like ZnO. A possible formation mechanism was also proposed. The photoluminescence spectrum of the ZnO spindles exhibits a strong ultraviolet emission at 390nm and a very weak visible emission at around 560nm. [Copyright &y& Elsevier]