Title :
Optical properties of BN nanotubes
Author :
Chen, Hua ; Chen, Ying ; Liu, Yun ; Xu, Chao-Nan ; Williams, Jim S.
Author_Institution :
Dept. of Electron. Mater. & Eng., Australian Nat. Univ., Canberra, ACT
Abstract :
High-yield boron nitride nanotubes (BNNTs), synthesized using a ball-milling (planetary mill) and annealing method, were analyzed using FTIR, optical excitation and optical absorption spectroscopy. The FTIR peak centered at 1489cm-1 appears to indicate the high quality BNNTs. The band gap of these multi-wall bamboo BNNTs drawn from photoluminescence spectrum is 5.75 eV, just slightly narrower than the hexagonal BN (h-BN) powder (5.82 eV). And the BNNTs present stronger and broader UV-visible-NIR light emission in comparison with h-BN powder
Keywords :
Fourier transform spectroscopy; annealing; ball milling; boron compounds; energy gap; infrared spectroscopy; nanotubes; optical properties; photoluminescence; powders; 5.75 eV; 5.82 eV; BN; BN nanotubes; FTIR; UV-visible-NIR light emission; annealing method; ball-milling method; band gap; boron nitride nanotubes; hexagonal boron nitride powder; optical absorption spectroscopy; optical excitation spectroscopy; optical properties; photoluminescence spectrum; planetary mill method; Absorption; Annealing; Boron; Chemicals; Milling machines; Nanotubes; Photoluminescence; Photonic band gap; Powders; Spectroscopy;
Conference_Titel :
Nanoscience and Nanotechnology, 2006. ICONN '06. International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
1-4244-0453-3
Electronic_ISBN :
1-4244-0453-3
DOI :
10.1109/ICONN.2006.340551
