Optical properties of nanocrystalline FeSi 2 and the effects of hydrogenation

K. Takarabe; H. Doi; Y. Mori; K. Fukui; Y. Shim; N. Yamamoto; T. Yoshitake; K. Nagayama

doi:10.1063/1.2172711

Optical properties of nanocrystalline FeSi ₂ and the effects of hydrogenation

K. Takarabe, H. Doi, Y. Mori, K. Fukui, Y. Shim, N. Yamamoto, T. Yoshitake, K. Nagayama

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25 Citations (Scopus)

Abstract

Various optical measurements confirm that optical absorption in uniform thin films made from nanocrystalline iron disilicide (nc- Fe Si2) with a 3-5 nm radius is larger by about 10% than that of single crystalline Β-Fe Si2. It is also found that the hydrogenation of nc- Fe Si2 changes strongly its optical characteristic energies. The nanocrystalline state appears characteristically in the imaginary part of dielectric constants of Β-Fe Si2 around 2-3 eV.

Original language	English
Article number	061911
Journal	Applied Physics Letters
Volume	88
Issue number	6
DOIs	https://doi.org/10.1063/1.2172711
Publication status	Published - Feb 1 2006

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All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Cite this

Takarabe, K., Doi, H., Mori, Y., Fukui, K., Shim, Y., Yamamoto, N., ... Nagayama, K. (2006). Optical properties of nanocrystalline FeSi ₂ and the effects of hydrogenation. Applied Physics Letters, 88(6), [061911]. https://doi.org/10.1063/1.2172711

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10.1063/1.2172711