Optical and structural properties of lead sulphide (PbS) thin films synthesized by chemical method | Zendy

A Ezekoye B | Zendy; Taowu Ma | Zendy; A Ezekoye | Zendy; Koichi Oka | Zendy; O Offor P | Zendy

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Optical and structural properties of lead sulphide (PbS) thin films synthesized by chemical method

Author(s) -

A Ezekoye B,

Taowu Ma,

A Ezekoye,

Koichi Oka,

O Offor P

Publication year - 2015

Publication title -

international journal of the physical sciences

Language(s) - English

Resource type - Journals

ISSN - 1992-1950

DOI - 10.5897/ijps2015.4354

Subject(s) - chemical bath deposition , scanning electron microscope , thiourea , galena , thin film , lead sulfide , band gap , materials science , diffraction , x ray photoelectron spectroscopy , analytical chemistry (journal) , nanotechnology , mineralogy , chemical engineering , chemistry , optics , pyrite , metallurgy , sphalerite , optoelectronics , composite material , organic chemistry , engineering , quantum dot , physics

The influence of dip times on the lead sulphide (PbS) thin films deposited on glass slide substrates via chemical bath deposition (CBD) technique using chemical precursors, nitrate, and thiourea, ) in alkaline medium at 300 K was investigated. The optical, structural and morphological studies were performed by UV-vis spectophotometry, X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively. The XRD showed films of cubic (galena), crystalline in nature with the preferential (111) orientation. The optical studies showed films of direct band gaps in the range of 1.59-1.65 eV. Key words: Lead sulphide, thin films, lead sulphide (PbS), X-Ray diffraction, scanning electron microscope (SEM), bandgap.

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