Optical and structural properties of 100 MeV Fe9+ ion irradiated InP

Autor: S.K. Dubey, S. P. Bodhane, R. L. Dubey, D. Kanjilal
Rok vydání: 2016
Předmět:
Zdroj: AIP Conference Proceedings.
ISSN: 0094-243X
DOI: 10.1063/1.4946717
Popis: Single crystal InP samples were irradiated with 100 MeV Fe9+ ions for ion fluences 1x1012 and 1x1013 cm−2. Optical properties of irradiated InP was investigated by Spectroscopic Ellipsometry and UV-VIS-NIR spectroscopy. The optical parameters like, refractive index, extinction coefficient, absorption coefficient is found to be fluence dependent near the surface as well as near the projected range. Small change in the optical parameters near the surface region as investigated by Spectroscopic Ellipsometry indicatesthat the surfaces of irradiated InP are similar to non-irradiated InP. This is also supported by RBS/C measurements. The UV-VIS-NIR study revealed the decrease in the band gap and increase in the defect concentration in the irradiated sample as a result of nuclear energy loss.
Databáze: OpenAIRE