Solution for green organic thin film transistors: Fe3O4 nano-core with PABA external shell as p-type film

We report the first successful green synthesis route for organic transistors based on para-aminobenzoic acid (PABA) grafted to ferrite nanoparticles, at room temperature. The obtained core–shell nanoparticles (NCS) have been investigated by DLS, FT-IR, SEM, TEM. Both average hydrodynamic diameter an...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2020-02, Vol.31 (4), p.3063-3073
Main Authors: Ravariu, Cristian, Mihaiescu, Dan Eduard, Morosan, Alina, Istrati, Daniela, Purcareanu, Bogdan, Cristescu, Rodica, Trusca, Roxana, Vasile, Bogdan Stefan
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Diameters
Ferrites
Iron oxides
Materials Science
Nanoparticles
Optical and Electronic Materials
Room temperature
Semiconductor devices
Stability analysis
Thin film transistors
Thin films
Threshold voltage
Transistors
Zeta potential
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Summary:We report the first successful green synthesis route for organic transistors based on para-aminobenzoic acid (PABA) grafted to ferrite nanoparticles, at room temperature. The obtained core–shell nanoparticles (NCS) have been investigated by DLS, FT-IR, SEM, TEM. Both average hydrodynamic diameter and zeta potential of synthesized PABA-NCS nanoparticles has been identified, indicating a good stability of this nano-compound. SEM analysis proved a heterogeneous structured material with quasi-uniform granular formations in size, while TEM revealed a ferrite core of 20 nm. The measurements of output characteristics in the saturation regime and transfer characteristics at negative gate voltages have proved that an organic transistor based on PABA-NCS has been accomplished. The current increasing over a negative threshold voltage demonstrated an accumulation channel onset in the PABA-NCS thin film. This is a final argument for the p-type behavior of the PABA-NCS film.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-019-02851-3