This article is cited in 1 paper

Semiconductors

Semiconductor properties of polymer films based on nickel complex with salen-type ligand

Yu. A. Polozhentseva^a, E. V. Alekseeva^b, M. P. Karushev<sup>a

a</sup> Ioffe Institute, St. Petersburg, Russia
^b Saint Petersburg State University, St. Petersburg, Russia

Abstract: Metal complexes of Schiff bases are considered as promising materials for energy storage and photovoltaic devices. In this work, the semiconducting properties of a polymer film of a nickel salen-type complex (poly-Ni(CH$_3$O-Salen)) were studied by spectrophotometric and electrochemical impedance spectroscopy methods. The Mott–Schottky analysis showed that the polymer film is a semiconducting material with a fairly narrow band gap, high charge carrier density and $p$-type conductivity. Using the method of electrochemical impedance spectroscopy, the limiting stage of the oxygen photoelectroreduction reaction, the process of charge transfer from the film to molecular oxygen, has been established.

Keywords: Schiff bases, Mott–Schottky analysis, photovoltaic devices, semiconductor properties.

Received: 12.07.2021
Revised: 09.09.2021
Accepted: 09.09.2021

DOI: 10.21883/FTT.2022.01.51832.166

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