Optical and x-ray photoelectron spectroscopy studies of α-Al{sub 2}O{sub 3}

Journal Article · Mon May 23 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947751· OSTI ID:22606330

Prakash, Ram; Kumar, Sandeep; Kumar, Vinay ^[1]; Choudhary, R. J.; Phase, D. M. ^[2]

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1. School of Physics, Shri Mata Vaishno Devi University, Katra 182320 J&K (India)
2. UGC DAE Consortium for Scientific Research, Indore-452001 (India)

α-Al{sub 2}O{sub 3} powder sample was synthesized at 550 °C via solution combustion synthesis (SCS) method using urea as an organic fuel. The sample was characterized by X-ray diffraction (XRD), Optical spectroscopy and X-ray photoelectron spectroscopy (XPS) without any further thermal treatment. XRD study reveals that the powder crystallized directly in the hexagons α-Al{sub 2}O{sub 3} phase. A band gap of 5.7 eV was estimated using diffuse reflectance spectra. For surface investigation X-ray photo electron spectroscopy (XPS) was carried out. The XPS survey scan study of α-Al{sub 2}O{sub 3} powder reveals that the sample is free from impurity. The core levels of Al-2s and O-1s are also reported.

• OSTI ID: 22606330
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1731; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM OXIDES
HEAT TREATMENTS
IMPURITIES
OPTICAL SPECTROMETERS
POWDERS
SPECTRA
SURFACES
SYNTHESIS
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY