Microstructure, Thermal and Electrical Characterization of ZnO-(50-x)CuO-xNiO
Yükleniyor...
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Beykent Üniversitesi
Erişim Hakkı
Özet
Composite semiconductors have been prepared by powder metallurgy technique from the solution based on ZnO-(50-x)CuO-xNiO (x = 30, 25, 20, 10 wt%) in acetone at 100 °C in atmosphere, stirring for 12 h. After the evaporation of acetone the samples were calcined in nitrogen gas atmosphere at 1000 °C for 10 minutes and called ZZ1-ZZ4. Thermal and electric properties of the composite powders were investigated. The weight losses and decomposition temperatures of the composite powders were determined by TG/DTA. The surfaces of samples were investigated by scanning electron microscopy (SEM). Conduction mechanism of the composite powders (ZZ1- ZZ4), which were shaped like a disk, was determined. The activation energies of the ZZ1-ZZ4 samples were calculated. The activation energy values were found between 0.20-0.27 eV.
Açıklama
Anahtar Kelimeler
Composite, Transition Metal Oxides, Activation Energy, Semiconductor
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Journal of Science and Technology 1 (1), 2007, 35-42
