Structural and optical characterization of sprayed Mg and Ni co-doped CdS thin films for photovoltaic applications

Abstract

In the present work, Mg and Ni co-doped CdS thin films are grown on glass substrates at a temperature of 400 °C through spray pyrolysis. The influence of Mg-doping on structural, morphological and optical properties of CdS:Ni thin films are examined. Mg level is changed from 0 % to 7 % for CdS: Ni samples just as Ni concentration is fixed 2 % for all CdS thin films. It is observed from the X-ray diffraction spectra that all the samples exhibit hexagonal structure of CdS thin films. The scanning electron microscopy (SEM) images showed a dense surface structure composed of crystallites whose average size increase with increasing the Mg doping. The optical transmission curves demonstrate that CdS:Ni thin films exhibit a best optical transparency in the visible range for 1 % Mg content compared to other specimens. The energy of the optical band gap tends to decrease from 2.46 to 2.40 eV with increasing Mg concentration in CdS: Ni.

Preparation and Characterization of Nickel and Aluminum-Codoped SnO2 Thin Films for Optoelectronic Applications

“…The preferred orientations of the Al-Ni-codoped SnO 2 thin films are evaluated by the texture coefficient (T C ), calculated from the X-ray data using the well-known formula [50]:…”

An electrochemical sensor for the determination of environmentally hazardous fungicide pyrimethanil in water and fruit samples

“…40 Moreover, due to the excellent properties of RE ion-doped metal oxides, these new materials are promising hosts for various applications, including lasers, light-emitting display devices, solar cells, energy converters, sensors and biosensors. [41][42][43][44][45][46] Of the numerous RE ions, the europium (Eu) ion is oen chosen for incorporation into materials for sensing applications. Eu is able to generate structure defects more satisfactorily when incorporated as a dopant, possibly by acting as an electron transfer ion.…”

Opto-electrical properties of Ni and Mg co-doped CdS thin films prepared by spin coating technique

“…In literature, many physical and chemical methods are used to synthesize CdS thin films. For exemple, sol gel dip coating [11], spray pyrolysis [22], chemical bath deposition (CBD) [23] chemical vapor deposition (CVD) [24], spin coating [25]. Sol gel spin coating is a simple chemical technique to perform which does not require vacuum conditions.…”