Journal
MATERIALS
Volume 14, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/ma14164444
Keywords
bis(ethylenedithio)tetraselenafulvalene BETS; molecular conductors; electrocrystallization technique; nanoparticles; amphiphilic imine
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Funding
- Centre National de la Recherche Scientifique (CNRS)
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Nanoparticles of (BETS)(2)FeCl4 were successfully obtained using electrochemical oxidation and a growth controlling agent, with sizes ranging from 10-40 nm and exhibiting a kappa-type structure. The current-voltage characteristic recorded on an individual nanoparticle aggregate fitted with a Shockley diode model.
Nanoparticles of the molecular superconductor (BETS)(2)FeCl4 were obtained by the electrochemical oxidation of BETS in the presence of [(C2H5)(4)N]FeCl4 and an amphiphilic imine (OATM), acting as a growth controlling agent. When the reaction was carried out with a molar ratio OATM/BETS of 10, roughly spherical nanoparticles exhibiting sizes in the 10-40 nm range were observed. X-ray diffraction patterns evidenced the growth of (BETS)(2)FeCl4 nanoparticles with the kappa-type structure. The current-voltage characteristic recorded on an individual nanoparticle aggregate was fitted with a Shockley diode model. A saturation current of 1216 pA and a threshold voltage of 0.62 V were extracted from this model. This latter value was consistent with roughly half of the energy gap of the semiconducting nano-crystalline aggregate.
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