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Investigation of Multi‐Phase Structure and Optoelectronic Performance of Bi‐Doped (Cu−Zn) Oxide Composite Thin Films     
Yazarlar
Yasemin Altinay
Doç. Dr. Abdullah AKKAYA Doç. Dr. Abdullah AKKAYA
Kırşehir Ahi Evran Üniversitesi
Rasit Aydin
Bunyamin Sahin
Özet
In this research, thin film composite structures were used to prepare optoelectronic devices from bare and Bi-substituted p-CuO/n-ZnO systems. The p-CuO/n-ZnO composite thin film structures were prepared by the SILAR technique, and the influences of two different Bi contents on the structure and main physical performances of the samples were investigated. The X-ray diffraction (XRD) technique showed that the composited thin film materials were multiphased in rutile hexagonal (wurtzite) phase (ZnO) and monoclinic tenorite phase (CuO) type crystal structure. The obtained surface morphological results presented that the structure exhibits an almost homogeneous, plate-like surface distribution, and depending on the increase of Bi concentration, the plate-like sheet area widens from similar to 2.5 mu m to 10 mu m and the layer boundaries decrease. FT-IR and Raman spectroscopy were used to investigate the various vibration and Raman active phonon modes of Bi:p-CuO/n-ZnO nanostructured heterostructures. For a comprehensive analysis of the optical bandgap of the fabricated composite samples, the estimated values were obtained from the Tauc plot. Produced samples exhibited an Ohmic behavior and dc resistivity values of films can be determined via Ohm's Law. The adjusted sheet resistance value of 11.51 M Omega/sq when the content of Bi 3.0 % in the growth bath.
Anahtar Kelimeler
Band gap | CuO | nanocomposite | resistivity | ZnO
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı CHEMELECTROCHEM
Dergi ISSN 2196-0216
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 09-2023
Cilt No 10
Sayı 17
Doi Numarası 10.1002/celc.202300208
Makale Linki http://dx.doi.org/10.1002/celc.202300208