Spectral studies of new organic conductors based on TTF derivatives with polymeric isocyanuric acid anions

• Autorzy: Barszcz B. , Łapiński A. , Graja A. , Flakina A. M. , Lyubovskaya R. N.
• Języki publikacji: EN

Abstrakty

EN

Spectral investigations of new organic conductors (BEDO-TTF)2(C3H2N3O3) and (DB-TTF) (C3H2N3O3) were performed. Optical absorption spectra in the range of 400-40 000 cm-1 of the powdered salts dispersed in KBr pellets were recorded and analysed. The spectra of (BEDO-TTF)2(C3H2N3O3) are characteristic of organic metals and show small anisotropy, which is typical of quasi-two-dimensional materials. On the other hand, the spectra of (DB-TTF)(C3H2N3O3) are typical of semiconducting materials. The (BEDO -TTF)2(C3H2N3O3) salt undergoes a phase transition at about 120 K. The polarized reflectance spectra of single crystals of (BEDO-TTF)2(C3H2N3O3) were recorded in the range of 600-7000 cm-1, down to 4 K. The frequency dependences of reflectivity were fitted with a Drude model and the transport parameters were evaluated and investigated vs. temperature. An assignment of some vibrational bands in the IR spectra was proposed.

Słowa kluczowe

EN

BEDO-TTF salt; DB-TTF salt; TTF derivatives; organic conductors; IR spectroscopy; transport properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2004
• Tom: Vol. 22, No. 4
• Strony: 339--346
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Barszcz B.

• Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland

autor

Łapiński A.

• Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland

autor

Graja A.

• Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland

autor

Flakina A. M.

• Institute of Problems of Chemical Physics, RAS, Ac. Semenov Prospect 5, 142432 Chernogolovka, Moscow Region, Russia

autor

Lyubovskaya R. N.

• Institute of Problems of Chemical Physics, RAS, Ac. Semenov Prospect 5, 142432 Chernogolovka, Moscow Region, Russia

Bibliografia

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