Synthesis of Metal (Ni) Doped Metal Oxide (ZnO) Heteronanostructures and Investigation of Their Morphological-Optical Properties

Abstract

In this study, different volumes of Nickel (Ni) doped Zinc oxide (ZnO) thin films were deposited on FTO by hydrothermal method. The films were characterized by SEM, EDS, and UV-Vis Spectroscopy. When the SEM images were examined, the nanostructures showed different morphological features as the amount of doped (v) nickel-ZnO increased in comparison to undoped nickel-ZnO. Furthermore, it was demonstrated that the obtained film surface has a homogeneous distribution. EDS spectra showed the increase in Ni by volume and its presence in the film composition. The UV-Vis Spectroscopy results showed that Ni doping can change the transmittance and band gap values from 2.94 to 3.38, and thus the ZnO band gap can be adjusted by Ni doping. As a result of the findings, ZnO-NiO thin films are promising candidates for both high-performance hetero nanostructures and practical applications.

Keywords

• Nanostructures
• ZnO-NiO thin films
• Hydrothermal method
• Band gap

Supporting Institution

This study was supported by Düzce University Scientific Research Projects

Project Number

Proje no: 2021.05.03.1250

Metal (Ni) Katkılı Metal Oksit (ZnO) Heteronanoyapıların Sentezi ve Morfolojik-Optik Özelliklerinin İncelenmesi

Abstract

Bu çalışmada, hidrotermal yöntemle FTO üzerine farklı hacimlerde Nikel (Ni) katkılı Çinko oksit (ZnO) ince filmler biriktirilmiştir. Filmler SEM, EDS ve UV-Vis Spektroskopisi ile karakterize edildi. SEM görüntüleri incelendiğinde katkılı (v) nikel-ZnO miktarı katkısız nikel-ZnO'ya göre arttığı için nanoyapılar farklı morfolojik özellikler göstermiştir. Ayrıca elde edilen film yüzeyinin homojen bir dağılıma sahip olduğu gösterildi. EDS spektrumları, Ni'nin hacimce katılımı ve film bileşimindeki varlığı ile Ni miktarının arttığını tespit edilmiştir. UV-Vis Spektroskopisi sonuçları, Ni katkılamanın geçirgenlik ve bant aralığı değerlerini 2,94'ten 3,38'e değiştirebileceğini ve böylece ZnO bant boşluğunun Ni katkılaması ile ayarlanabileceğini göstermiştir. Elde edilen bulgular sonucunda ZnO-NiO ince filmler hem yüksek performanslı hetero nanoyapılar hem de pratik uygulamalar için umut verici adaylardır.

Keywords

• Nanoyapılar
• ZnO-NiO ince filmler
• Hidrotermal metot. Bant aralığı

Project Number

Proje no: 2021.05.03.1250

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