Abstract
Ultra-fast and large-quantity (grams) synthesis of one-dimensional ZnO nanowires has been carried out by a novel microwave-assisted method. High purity Zinc (Zn) metal was used as source material and placed on microwave absorber. The evaporation/oxidation process occurs under exposure to microwave in less than 100 s. Field effect scanning electron microscopy analysis reveals the formation of high aspect-ratio and high density ZnO nanowires with diameter ranging from 70 to 80 nm. Comprehensive structural analysis showed that these ZnO nanowires are single crystal in nature with excellent crystal quality. The gas sensor made of these ZnO nanowires exhibited excellent sensitivity, fast response, and good reproducibility. Furthermore, the method can be extended for the synthesis of other oxide nanowires that will be the building block of future nanoscale devices.
| Original language | English |
|---|---|
| Pages (from-to) | 948-954 |
| Number of pages | 7 |
| Journal | Nanoscale Research Letters |
| Volume | 4 |
| Issue number | 8 |
| DOIs | |
| State | Published - 2009 |
Bibliographical note
Funding Information:Acknowledgment The authors would like to thank KFUPM for its support. Ahsanulhaq Qurashi is thankful to venture business laboratory of Toyama University for post doctoral fellowship.
Keywords
- FESEM
- H gas sensor
- Microwave synthesis
- Nanowires
- TEM
- XPES
- ZnO
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics