Synthesis, characterization, and thermoelectric properties of superconducting (BEDT-TTF) 2 I 3 nanoparticles

• Published in: Journal of materials chemistry. C, Materials for optical and electronic devices Vol. 4; no. 31; pp. 7449 - 7454
• Main Authors: Chtioui-Gay, I., Faulmann, C., de Caro, D., Jacob, K., Valade, L., de Caro, P., Fraxedas, J., Ballesteros, B., Steven, E., Choi, E. S., Lee, M., Benjamin, S. M., Yvenou, E., Simonato, J.-P., Carella, A.
• Format: Journal Article
• Language: English
• Published: 2016
• ISSN: 2050-7526; 2050-7534
• DOI: 10.1039/C6TC01378C

The synthesis of (BEDT-TTF) 2 I 3 in the presence of two neutral amphiphilic molecules [ N -octylfurfurylimine and 1-octanamine, N -(2-thienylmethylene)] leads to single and aggregated nanoparticles of 2 to 6 nm size. The samples contain highly crystalline nanoparticles of the β CO -(BEDT-TTF) 2 I 3 phase, confirmed by XRD. Temperature dependent resistance and magnetic susceptibility studies evidence the superconducting transition characteristics of the β CO -(BEDT-TTF) 2 I 3 phase. The I – V curve of a single nanoparticle aggregate, measured using AFM, exhibits an expected semiconductor-like behaviour. Thermoelectric studies led to a ZT of 1.47 × 10 −3 at 300 K.