A Semiconductor-Semiconductor Transition in (TSeT)3[Fe(CN)5NO] Followed by Infrared Spectroscopy

Autor: I. Olejniczak, R. M. Vlasova, N. V. Drichko, I. Shevyakova, V. N. Semkin, E. B. Yagubskii, B. V. Petrov
Rok vydání: 2002
Předmět:
Zdroj: Molecular Low Dimensional and Nanostructured Materials for Advanced Applications ISBN: 9781402005787
Popis: In progress of the search for organic conductors with new properties, the salts with anions, which can produce metastable excited states were synthesized. Such materials can find application in information storage devices. In addition, they can be used in the investigations of the influence of the excited state of the anion on the electronic properties of a compound [1]. The quasi-one-dimensional salt (TSeT)3[Fe(CN)5NO] is a recently synthesized example of such materials. D.C. conductivity in the stack direction of the (TSeT)3[Fe(CN)5NO] shows semiconducting behavior with two phase transitions, at 285 K and 160 K [1]. The phase transition at 160 K is irreversible and probably of the first order. In order to get more information on the nature of these two phase transitions as well as on the electronic structure of this salt, we investigated the polarized reflectivity spectra of the (TSeT)3[Fe(CN)5NO] crystals in the spectral range 700—6000 cm-1 and at temperatures between 300 and 10 K.
Databáze: OpenAIRE