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Luminescence, vibrational and XANES studies of AlN nanomaterials

DOI: 10.1016/j.radmeas.2007.01.072 DOI Help

Authors: S. Belluci (Istituto Nazionale di Fisica Nucleare, Italy) , A. I. Popov (ESRF) , C. Balasubramanian (INFN-Laboratori Nazionali di Frascati, Italy) , G. Cinque (Diamond Light Source) , A. Marcelli (INFN-Laboratori Nazionali di Frascati, Italy) , I. Karbovnyk (Ivan Franko National University of Lviv, Ukraine) , V. Sacvhyn (Ivan Franko National University of Lviv, Ukraine) , N. Krutyak (Ivan Franko National University of Lviv, Ukraine)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Radiation Measurements , VOL 42 , PAGES 708 - 711

State: Published (Approved)
Published: April 2007

Abstract: The paper reports comparative studies on synthesized aluminium nitride nanotubes, nanoparticles and commercially available micron-sized AlN powder using different spectroscopic techniques: cathodoluminescence measurements (CL), X-ray absorption near edge spectroscopy (XANES) and Fourier-transform infrared spectroscopy (FTIR). Crucial distinctions in CL spectra are observed for nano- and microsized aluminium nitride powders; systematic shift of the IR absorption maximum has been detected for nanostructured aluminium nitride as compared to commercial samples. Through XANES experiments on Al K-edge structural differences between nano- and bulk AlN are revealed, intensity of features in absorption spectra has been found to be a function of wurtzite and zincblend phases amount in nanostructured samples.

Journal Keywords: Aluminium Nitride; Nanotubes; Nanoparticles; Cathodoluminescence

Subject Areas: Physics

Facility: Laboratori Nazionali di Frascati