Valence-differential spectroscopy of Co–Fe cyanide films | Zendy

Yutaka Moritomo | Zendy; F. Nakada | Zendy; Yutaro Kurihara | Zendy

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Valence-differential spectroscopy of Co–Fe cyanide films

Author(s) -

Yutaka Moritomo,

F. Nakada,

Yutaro Kurihara

Publication year - 2009

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3103561

Subject(s) - spectroscopy , valence (chemistry) , cyanide , transition metal , materials science , electrochromism , electron spectroscopy , metal k edge , oscillator strength , metal , analytical chemistry (journal) , chemistry , inorganic chemistry , spectral line , electrode , physics , organic chemistry , astronomy , metallurgy , quantum mechanics , catalysis

Electrochromism is extensively investigated for practical application of display and memory devices. To develop the material, reliable information on the optical and electronic properties of the solid film is indispensable. Here, we propose valence-differential spectroscopy that can selectively extract the spectral components related to the oxidized/reduced metal site. We applied the spectroscopy to Co2+–Fe2+delta and Co2+delta–Fe2+ cyanide films with finely control of averaged valence (delta) of the transition metal by external electric pulses. The spectroscopy revealed transition energy E, width Gamma, and oscillator strength f of the spectral components related to the transition metal

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