Structural and Optical Properties of Nanoscale Galinobisuitite Thin Films

International Journal of Molecular Sciences

Omar H. Abd-Elkader¹ 

[1]Department of Zoology, Science College, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

关键词: Galinobisuitite (Bi₂S₃)(PbS) thin film;    CBD;    nanoscale structural;    XRD;    AAS;    optical band gap;   

DOI  :  10.3390/ijms15021842

来源: mdpi

【 摘 要 】

Galinobisuitite thin films of (Bi₂S₃)(PbS) were prepared using the chemical bath deposition technique (CBD). Thin films were prepared by a modified chemical deposition process by allowing the triethanolamine (TEA) complex of Bi³⁺ and Pb²⁺ to react with S²⁻ ions, which are released slowly by the dissociation of the thiourea (TU) solution. The films are polycrystalline and the average crystallite size is 35 nm. The composition of the films was measured using the atomic absorption spectroscopy (AAS) technique. The films are very adherent to the substrates. The crystal structure of Galinobisuitite thin films was calculated by using the X-ray diffraction (XRD) technique. The surface morphology and roughness of the films were studied using scanning electron microscopes (SEM), transmission electron microscopes (TEM) and stylus profilers respectively. The optical band gaps of the films were estimated from optical measurements.

【 授权许可】

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© 2014 by the authors; licensee MDPI, Basel, Switzerland