Structural, morphological, and optical properties of CdS and nickel doped CdS nanocrystals synthesized via a bottom-up approach. (2022)

• Record Type: Journal Article
• Authors: Patra, Prashanta; Kumar, Rajiv; Mahato, Prabin Kumar; Bhakat, Chittaranjan; Kumar, Chandra
• Is Part Of: Materials today. Volume 56:Part 2(2022)
• Page Start: 811
• Page End: 818
• Publication Date: 2022
• Subjects: CdS -- Nanocrystals -- Bottom-up -- Optoelectronics; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.02.261
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The present work investigates the effect of nickel doping with pristine cadmium sulfide (CdS) on structural, morphological, and optical properties synthesized via a bottom-up approach. The crystallite structure, size, interplanar space, lattice constants, and volume of the unit cell have been estimated from the X-ray diffraction (XRD). The average crystallite size was found in a nano range and increased with nickel incorporation. XRD result confirmed the prepared nanocrystals of CdS and transition metal Nickel doped CdS are in the hexagonal wurtzite structural phase. Field emiision scanning electron microscopy(FESEM) micrographs indicate that the nanocrystals have a smooth surface and appear to be roughly spherical and are also found in the nano range. EDAX attached with FESEM mapping studies showed the presence of the homogenous distribution of individual elements. Absorption spectra of UV–Vis spectroscopy show an effective band gap decreases after doping. This work furnishes a gateway to improve the optical properties of CdS for optoelectronic device applications by selecting the suitable proportion of transition metal dopants.