Structural, Morphological and Optical Properties of Zn0.95-xCu0.05CoxO Synthesized by Co-Precipitation Method

Sinem Kayar; Neslihan Erat; Abdulkadir Özer

Makale detayları

Structural, Morphological and Optical Properties of Zn0.95-xCu0.05CoxO Synthesized by Co-Precipitation Method

Yazarlar:

Sinem Kayar | Neslihan Erat | Abdulkadir Özer

Yayıncı:

Igdir University

Ana Başlıklar:

Metroloji | Uygulamalı ve Endüstriyel Fizik

Dergi:

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 2, pp.1013-1025

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001289852

pISSN:

2536-4618

Anahtar kelimeler:

Özet:

 There is increasing interest in the synthesis, characterization and application of mixed oxides for better functional performance compared to base metal oxides. In this study, Zn0.95-xCu0.05CoxO 0  x  0.05 nanocomposites were synthesized by co-precipitation method. The synthesized samples were characterized for its structural, compositional and optical properties using by X-ray Diffraction XRD, Scanning Electron Microscopy SEM, Energy Dispersive Spectroscopy EDS, X-ray Photoelectron Spectroscopy XPS, Raman spectroscopy and UVVis absorption spectroscopy. According to XRD results, it is seen that the würtzite structure of hexagonal ZnO does not change. In addition, it can be said that the separate phases of Cu2O and Co3O4 are formed due to the unreacted parts of Cu and Co3 ions. This is also confirmed by XPS results. The average crystallite size of the Zn0.95-xCu0.05CoxO nanocomposites were found in the range of 30.02-22.00 nm. It is seen that the crystal growth decreases as a result of Cu and Co doping in ZnO. SEM images show that all samples are composed of spherical nanoparticles. EDS spectra confirms the presence of Zn, Cu, Co, and O atoms in the samples with expected stoichiometry. As the Co concentration increases from x0.00 to x 0.05, the band gap increases from 3.26 eV to 3.57 eV.

 There is increasing interest in the synthesis, characterization and application of mixed oxides for better functional performance compared to base metal oxides. In this study, Zn0.95-xCu0.05CoxO 0  x  0.05 nanocomposites were synthesized by co-precipitation method. The synthesized samples were characterized for its structural, compositional and optical properties using by X-ray Diffraction XRD, Scanning Electron Microscopy SEM, Energy Dispersive Spectroscopy EDS, X-ray Photoelectron Spectroscopy XPS, Raman spectroscopy and UVVis absorption spectroscopy. According to XRD results, it is seen that the würtzite structure of hexagonal ZnO does not change. In addition, it can be said that the separate phases of Cu2O and Co3O4 are formed due to the unreacted parts of Cu and Co3 ions. This is also confirmed by XPS results. The average crystallite size of the Zn0.95-xCu0.05CoxO nanocomposites were found in the range of 30.02-22.00 nm. It is seen that the crystal growth decreases as a result of Cu and Co doping in ZnO. SEM images show that all samples are composed of spherical nanoparticles. EDS spectra confirms the presence of Zn, Cu, Co, and O atoms in the samples with expected stoichiometry. As the Co concentration increases from x0.00 to x 0.05, the band gap increases from 3.26 eV to 3.57 eV.

 There is increasing interest in the synthesis, characterization and application of mixed oxides for better functional performance compared to base metal oxides. In this study, Zn0.95-xCu0.05CoxO 0  x  0.05 nanocomposites were synthesized by co-precipitation method. The synthesized samples were characterized for its structural, compositional and optical properties using by X-ray Diffraction XRD, Scanning Electron Microscopy SEM, Energy Dispersive Spectroscopy EDS, X-ray Photoelectron Spectroscopy XPS, Raman spectroscopy and UVVis absorption spectroscopy. According to XRD results, it is seen that the würtzite structure of hexagonal ZnO does not change. In addition, it can be said that the separate phases of Cu2O and Co3O4 are formed due to the unreacted parts of Cu and Co3 ions. This is also confirmed by XPS results. The average crystallite size of the Zn0.95-xCu0.05CoxO nanocomposites were found in the range of 30.02-22.00 nm. It is seen that the crystal growth decreases as a result of Cu and Co doping in ZnO. SEM images show that all samples are composed of spherical nanoparticles. EDS spectra confirms the presence of Zn, Cu, Co, and O atoms in the samples with expected stoichiometry. As the Co concentration increases from x0.00 to x 0.05, the band gap increases from 3.26 eV to 3.57 eV.

 Temel metal oksitlere kıyasla daha iyi fonksiyonel performans için karışık oksitlerin sentezi, karakterizasyonu ve uygulamasına olan ilgi giderek artmaktadır. Bu çalışmada, Zn0.95-xCu0.05CoxO 0  x  0.05 nanokompozitleri birlikte çöktürme yöntemi ile sentezlendi. Sentezlenen örnekler, X-ışını Kırınımı XRD, Taramalı Elektron Mikroskobu SEM, Enerji Dağılım Spektroskopisi EDS, Xışını Fotoelektron Spektroskopisi XPS, Raman spektroskopisi ve UVVis absorpsiyon spektroskopisi kullanılarak yapısal, bileşimsel ve optik özellikleri açısından karakterize edildi. XRD sonuçlarına göre altıgen ZnOnun würtzit yapısının değişmediği görülmektedir. Ayrıca, Cu2O ve Co3O4ün ayrı fazlarının Cu ve Co3 iyonlarının reaksiyona girmeden kalan kısımlarından dolayı oluştuğu söylenebilir. Bu XPS sonuçları ile de teyit edilmiştir. Zn0.95-xCu0.05CoxO nanokompozitlerinin ortalama kristal boyutları 30.61-27.24 nm aralığında bulundu. ZnOda Cu ve Co katkısının bir sonucu olarak kristal büyümenin azaldığı görülmektedir. SEM görüntülerinde, tüm örneklerin küresel nanopartiküllerden oluştuğu görülmektedir. EDS spektrumu beklenen stokiyometri ile numunelerde Zn, Cu, Co ve O atomlarının varlığını doğrulamaktadır. Co konsantrasyonu x0.00den x 0.05e arttıkça, bant aralığı 3.26 eVden 3.57 eVye artmıştır.

Makale detayları

Structural, Morphological and Optical Properties of Zn0.95-xCu0.05CoxO Synthesized by Co-Precipitation Method

Yazarlar:

Sinem Kayar | Neslihan Erat | Abdulkadir Özer

Yayıncı:

Igdir University

Ana Başlıklar:

Metroloji | Uygulamalı ve Endüstriyel Fizik

Dergi:

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 2, pp.1013-1025

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001289852

pISSN:

2536-4618

ZnO nanoparticle

Cu and Co doped

optical properties

co-precipitation methodZnO nanopartikül

Cu ve Co katkılandırma

optik özellikler

birlikte çöktürme yöntemi.

Sayı

Makale detayları

Yazarlar: Sinem Kayar | Neslihan Erat | Abdulkadir Özer

Yayıncı: Igdir University

Ana Başlıklar: Metroloji | Uygulamalı ve Endüstriyel Fizik

Dergi: Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 2, pp.1013-1025

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001289852

pISSN: 2536-4618

Sayı

Yazarlar:

Sinem Kayar | Neslihan Erat | Abdulkadir Özer

Yayıncı:

Igdir University

Ana Başlıklar:

Metroloji | Uygulamalı ve Endüstriyel Fizik

Dergi:

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.13 Issue 2, pp.1013-1025

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001289852

pISSN:

2536-4618