Optical Properties of Highly Ordered AlN Nanowire Arrays Grown on Sapphire Substrate
- Details
- Category: Molybdenum & Sapphire Growth Furnace News
- Published on 28 November 2013
- Written by Cloudy
- Hits: 291
Two techniques are described by which single crystals of sapphire may be grown. One is a development of the 
vertical-pulling technique for the production of scatter-free, lowdislocation-density material, whilst the other is an extension of a floating-zone, recrystallisation technique previously used for calcium tungstate. The origin and control of defects in crystals grown by these techniques are discussed.
Highly ordered AlN nanowire arrays were synthesized via a simple physical vapor deposition method on sapphire substrate. The nanowires have an extremely sharp tip ≪10 nm, with the average length around 3 μm. Raman spectroscopy analysis on the AlN nanowire arrays revealed that the lifetime of the phonons is shorter than that in bulk AlN. The transmission spectra of the AlN nanowires showed a blueshift ∼0.27 eV at the absorption edge with that of the bulk AlN, which is closely related to the small size of the nanowires.
More molybdenum product: http://www.molybdenum.com.cn
Tel: 0592-5129696 Fax：0592-5129797
E-mail:
This email address is being protected from spambots. You need JavaScript enabled to view it.
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Price: http://www.chinatungsten.com
sales@chinatungsten.com