Conductivity features of ZnO and NiO nanofiber composites

Martyshov, M.N.; Smirnova, V.V.; Ilin, A.S.; Platonov, V.B.; Forsh, P.A.; Kashkarov, P.K.

Авторы: Martyshov M.N., Smirnova V.V., Ilin A.S., Platonov V.B., Forsh P.A., Kashkarov P.K.
Журнал: Technical Physics Letters
Том: 49
Номер: 2
Год издания: 2023
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 54
Последняя страница: 57
DOI: 10.21883/TPL.2023.02.55372.19305
Аннотация: In this work, composites of ZnO and NiO nanofibers with n- and p-type conductivity, respectively, were studied. It is shown that the conductivity of the studied composites strongly depends on the arrangement of ZnO and NiO nanofibers. In the case of a mixture of ZnO and NiO nanofibers (with their random arrangement relative to each other and electrical contacts), conduction can occur only along ZnO fibers, which have a higher conductivity compared to NiO. However, the presence of the ZnO/NiO p-n heterojunction leads to the formation of depleted regions in ZnO, as a result, the conductivity of the mixture becomes several orders of magnitude lower than the conductivity of ZnO nanofibers. In the case of a two-layer composite, in which one layer consists of NiO nanofibers and the other layer consists of ZnO nanofibers, charge carriers move through the p-n NiO/ZnO heterojunction, which leads to a rectifying current-voltage characteristic and opens up broad prospects for the use of such systems in electronic devices. Keywords: metal oxides, zinc oxide, nickel oxide, heterostructures, conductivity.
Добавил в систему: Мартышов Михаил Николаевич

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