Abstract
Beaklike SnO2 nanorods were synthesized by a vapor-liquid-solid approach using Au as a catalyst. The nanorods grow along the [10I/direction and the beak is formed by switching the growth direction to [11̄2̄] through controlling the growth conditions at the end of the synthesis. The photoluminescence (PL) spectrum of the nanorods exhibits visible light emission with a peak at 602 nm. The field-emission (FE) properties of the nanorods have been measured to exhibit a turn-on field of 5.8 V μm 1. A comparative study of FE measurements between SnO2 nunorods with uniform diameters and these beaklike nanorods suggests that the shape and curved tips are important factors in determining the FE properties.
Original language | English (US) |
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Pages (from-to) | 116-120 |
Number of pages | 5 |
Journal | Small |
Volume | 2 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2006 |
Externally published | Yes |
Keywords
- Electron microscopy
- Field emission
- Nanorods
- Phototuminescence
- Tin oxide
ASJC Scopus subject areas
- General Chemistry
- Engineering (miscellaneous)
- Biotechnology
- General Materials Science
- Biomaterials