✦ LIBER ✦
Soft Solution Route to Directionally Grown ZnO Nanorod Arrays on Si Wafer; Room-Temperature Ultraviolet Laser
✍ Scribed by J.-H. Choy; E.-S. Jang; J.-H. Won; J.-H. Chung; D.-J. Jang; Y.-W. Kim
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 216 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0935-9648
No coin nor oath required. For personal study only.
✦ Synopsis
A high‐quality ZnO nanorod array (NRA) has been successfully grown on a Si wafer by a wet‐chemical process, where the Si wafer was dip‐coated with 4 nm sized ZnO nanoparticles as a buffer and seed layer prior to the crystal growth. It is found that the as‐prepared ZnO NRA has a threshold power density of ∼ 70 kW cm^–2^, which is comparable to the lowest one determined for ZnO NRAs on Al~2~O~3~ substrates (40 kW cm^–2^). The ultraviolet lasing efficiency of the ZnO NRAs is thus similar for both substrates.