Temperature dependence of the band gap of high optical quality CdS:Dy thin films based on exciton spectra

Gnatenko, Yu. P.; Bukivskij, P. M.; Furier, M.S.; Bukivskii, A.P.; Opanasyuk, A. S.

doi:10.1088/2053-1591/aae298

Cited by 11 publications

(2 citation statements)

References 21 publications

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“…It is very important to study the effect of RE elements on the optical and crystal structures of thin semiconductor films. Such studies were performed in the works [9,15,16]. Since these films are polycrystalline, they are highly heterogeneous.…”

Section: Excitons As Nanosized Probes Of a Crystal Structurementioning

confidence: 99%

Effect of Rare Earth Doping on the Optical Quality of А2В6 Semiconductors

Gnatenko

2019

MCMS

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Section: Excitons As Nanosized Probes Of a Crystal Structurementioning

confidence: 99%

Effect of Rare Earth Doping on the Optical Quality of А2В6 Semiconductors

Gnatenko

2019

MCMS

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“…In electrodeposition, deposition of thin films is carried out by optimizing associated deposition parameters such as concentration of ions in the electrolytic bath, temperature of the electrolytic bath, stirring, pH, deposition time, electrodes used and applied voltage based on the application the films are intended for. [36][37][38][39] In the literature, electrodeposited CdS (ED-CdS) thin films usually involve, the use of cadmium chloride (CdCl 2 ), cadmium niz E-mail: solomonwerta@gmail.com trate (Cd(NO 3 ) 2 ) and cadmium sulfate (CdSO 4 ) as cadmium precursors and thiourea (NH 2 CSNH 2 ) ammonium thiosulfate ((NH 4 ) 2 S 2 O 3 ) and sodium thiosulfate (Na 2 S 2 O 3 ) as sulfur precursors. 24,40,41 However, the use of cadmium acetate Cd(CH 3 COO) 2 , as Cd precursor, is not common in electrodeposition method although it is a familiar precursor in chemical bath deposition.…”

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confidence: 99%

Optical and Morphological Studies of Electrodeposited CdS Thin Film Grown at Different Deposition Times from Acetate Precursor

Werta¹,

Echendu²,

Dejene³

2019

ECS J. Solid State Sci. Technol.

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Electrodeposited cadmium sulfide (ED-CdS) thin films were prepared on fluorine-doped tin oxide (FTO) substrate at six different deposition times in order to study the impact of deposition time on their properties for possible solar cell application. The deposition was carried out from an electrolytic bath containing cadmium acetate Cd(CH3COO)2 and sodium thiosulfate (Na2S2O3) using simple two electrode configuration. The deposition time was varied at 30, 40, 50, 60, 70 and 80 minutes. The corresponding optical, morphological, surface roughness, compositional and structural properties of the deposited films were characterized using UV-Vis spectroscopy, scanning electron microscopy (SEM), scanning probe microscopy (SPM), energy dispersive X-ray spectroscopy (EDS) and glancing incidence X-ray diffraction (GIXRD) respectively. The results show that, the estimated energy band gaps were in the range of 2.35 to 2.20 eV as deposition time increases, for as-deposited films and 2.38 to 2.30 eV for annealed films. SEM images show very compact and agglomerated spherical grains. From SPM measurements it is observed that, the surface roughness ranges from 2.51 nm to 2.73 nm for as-deposited samples and 1.76 nm to 2.15 nm for annealed ones. EDS shows that the films are cadmium-rich in both as-deposited and annealed conditions.

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