Structural, optical, electrical and morphological properties of CdS films deposited by CBD varying the complexing agent concentration

Moreno-Regino, V.D.; Castañeda-de-la-Hoya, F.M.; Torres‐Castanedo, Carlos G.; Márquez‐Marín, J.; Castanedo‐Pérez, R.; Torres‐Delgado, G.; Zelaya-Ángel, O.

doi:10.1016/j.rinp.2019.102238

Cited by 30 publications

(21 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values of the band gaps obtained are higher than the range reported for bulk ZnS. 21 This is an indication that coating ZnS with aqueous dye extract, modified the band gap and other optical properties of the films, thus providing band gap tailoring for special applications.…”

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Energy Band Gapmentioning

confidence: 78%

“…The increase in energy band gap with increasing annealing temperature can be attributed to quantum confinement of the ZnS crystal in the films. 21 However, energy band gap increased with increased annealing temperature for thin films deposited with 0.3M and 0.5M ZnSO 4 concentrations, while for films deposited with 0.1M and 0.7M concentrations of ZnSO 4 , energy band gap decreased with an increase in annealing temperatures. This is possibly a result of increase in the grain size/crystallite size due to postdeposition annealing treatments.…”

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Energy Band Gapmentioning

confidence: 89%

“…Furthermore, a localized variation in film thickness may have also caused the observed peak. 21 However, at higher wavelengths above 400 nm, transmittance decreased with an increase in concentration. The decrease in transmittance with increasing concentration may be associated with the opacity of the films at these concentrations, higher roughness and greater light scattering.…”

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Transmittancementioning

confidence: 99%

“…20 The coalescence mechanism creates defects and grain boundaries in developed nanocrystals, as a result of energy utilization. 20,21 Coalescence could also cause lattice and thermal mismatch between the film and the substrate, which could then introduce residual stress and strain. 22 Mohamood et al 22 reported that lattice and thermal mismatch has a great influence on the optical properties of thin films.…”

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Transmittancementioning

confidence: 99%

“…The decrease in transmittance with increasing concentration may be associated with the opacity of the films at these concentrations, higher roughness and greater light scattering. 21 Figure 2a-d presents the transmittance spectra obtained for the different ZnSO 4 concentrations after annealing at temperatures of 100°C, 150°C and 200°C, with that of the as-deposited, superimposed for the purpose of comparison. Figure 2a shows that annealing reduced the transmittance of ZnS + AqDE thin film at 0.1M concentration.…”

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Transmittancementioning

confidence: 99%

See 4 more Smart Citations

Optical Properties of Zinc Sulphide Thin Films Coated with Aqueous Organic Dye Extract for Solar and Optoelectronic Device Applications

Onochie¹,

Ikpeseni

Igweoko

et al. 2021

Journal of Elec Materi

View full text Add to dashboard Cite

Optical properties of ZnS thin films coated with organic dye extract on different Zn 2+ concentrations from ZnSO 4 are presented in this study. The effects of concentration and post-deposition annealing temperatures on the optical properties of the films were investigated. Aqueous dye extract-coated ZnS nanocrystals, were prepared by a simple and low-cost chemical bath deposition method. Results obtained revealed that optical properties of the films were modified by concentration and post-deposition annealing temperature. Increasing concentration reduced the transparency of the films. Annealing increased the transparency of the films except for films deposited with 0.1M concentration of ZnSO 4 . In general, the heat-treated layers were found to transmit better than the as-deposited layers. The analysis of energy band gap showed a reduction in band gap with increasing Zn 2+ concentration of the asdeposited films. It also indicated that post-deposition annealing, increased energy band gap except for films deposited with 0.1M concentration of ZnSO 4 . The relationship between the energy band gap with both concentration and post-deposition annealing fit into the quadratic model with high R 2 values. The range of values of 3.889-3.981eV recorded for the band gaps is within the range for application in diverse solar architecture and optoelectronic devices.

show abstract

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Energy Band Gapmentioning

confidence: 78%

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Energy Band Gapmentioning

confidence: 89%

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Transmittancementioning

confidence: 99%

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Transmittancementioning

confidence: 99%

Section: Effect Of Concentration and Post-deposition Annealing Temperature On Transmittancementioning

confidence: 99%

See 3 more Smart Citations

Optical Properties of Zinc Sulphide Thin Films Coated with Aqueous Organic Dye Extract for Solar and Optoelectronic Device Applications

Onochie¹,

Ikpeseni

Igweoko

et al. 2021

Journal of Elec Materi

View full text Add to dashboard Cite

show abstract

Photoelectrochemical Immunosensor for Sensitive Quantification of Prostate Specific Antigen in Human Serum Samples Exploiting BaTiO₃−CdS

et al. 2020

View full text Add to dashboard Cite

A novel label‐free photoelectrochemical immunosensor was developed for the determination of prostate‐specific antigen (PSA) based on fluorine‐doped tin oxide (FTO) electrode modified with barium titanate and cadmium sulfide (BaTiO3−CdS/FTO). The photoelectrochemical current density of the BaTiO3 platform sensitized with CdS for the ascorbic acid (AA) donor molecule was higher than that observed in the absence of CdS. The BaTiO3−CdS/FTO platform was modified with PSA antibodies to produce the anti‐PSA/BaTiO3−CdS/FTO immunosensor, which was incubated in solutions of PSA to inhibit the photocurrent density of the immunosensor for AA. The photocurrent density of the anti‐PSA/BaTiO3−CdS/FTO immunosensor presented a linear relationship with the logarithm of the PSA concentration ranging from 1 pg mL−1 to 1 μg mL−1 with good sensitivity. The proposed method presented an experimental detection limit of 1 pg mL−1 (S/N=3). The immunosensor was successfully employed for the determination of PSA in blood serum samples, with recoveries between 98.7 %–104.4 %.

show abstract

Kesterite Cu ₂ ZnSnS ₄ thin films synthesized utilizing electrodeposition: Influence of metal doping on the properties

Mkawi

2020

Int J Energy Res

View full text Add to dashboard Cite

Summary In the present study, kesterite films were synthesized by sulfurization of co‐electrodeposited Cu2ZnSnS4 (CZTS) precursor, focusing on the effect of different metals (Li, Na, Sb, and Cr) on the CZTS thin films' properties. The structural, morphological, electrical and optical properties of the films were investigated. We demonstrated the deposition of four different metals using spin‐coating on co‐electrodeposited thin films. X‐ray diffraction (XRD) confirmed the kieserite phase with major intense peaks corresponding to the (112), (200), (312) and (332) planes with improvement in crystallinity after doping. Raman spectroscopy indicated the presence of a pure kesterite phase with a minor amount of impurities in the Na‐doped CZTS thin film. FE‐SEM analyses showed smooth, compact, and uniform surface morphology with fewer holes and cracks and well‐defined boundaries between the submicron particles and adherent layer cross section. An energy gap absorption edge ranging from 1.56 eV to 1.71 eV was calculated from the absorption measurements, while improvements in the energy gab were observed depending on the doping metal. The absorption coefficient was higher than 104 cm−1 in the visible spectrum of light. The performance of the solar cell with a device configuration of Glass/Mo/CZTS/CdS/i‐ZnO/ZnO: Al/Ag under simulated AM 1.5 was reported. The presence of different dopants increased the average efficiency from 1.74% ± 0.4 to 3.47% ± 0.3. Upon Na doping, solar cell device demonstrated as high‐performance efficiency as 3.47%, featuring open‐circuit voltage Voc = 343 mV, short‐circuit current density Jsc =12.55 mA/cm2, and a fill factor FF = 69.1.

show abstract

Structural, optical, electrical and morphological properties of CdS films deposited by CBD varying the complexing agent concentration

Cited by 30 publications

References 39 publications

Optical Properties of Zinc Sulphide Thin Films Coated with Aqueous Organic Dye Extract for Solar and Optoelectronic Device Applications

Optical Properties of Zinc Sulphide Thin Films Coated with Aqueous Organic Dye Extract for Solar and Optoelectronic Device Applications

Photoelectrochemical Immunosensor for Sensitive Quantification of Prostate Specific Antigen in Human Serum Samples Exploiting BaTiO₃−CdS

Kesterite Cu ₂ ZnSnS ₄ thin films synthesized utilizing electrodeposition: Influence of metal doping on the properties

Contact Info

Product

Resources

About

Structural, optical, electrical and morphological properties of CdS films deposited by CBD varying the complexing agent concentration

Cited by 30 publications

References 39 publications

Optical Properties of Zinc Sulphide Thin Films Coated with Aqueous Organic Dye Extract for Solar and Optoelectronic Device Applications

Optical Properties of Zinc Sulphide Thin Films Coated with Aqueous Organic Dye Extract for Solar and Optoelectronic Device Applications

Photoelectrochemical Immunosensor for Sensitive Quantification of Prostate Specific Antigen in Human Serum Samples Exploiting BaTiO3−CdS

Kesterite Cu 2 ZnSnS 4 thin films synthesized utilizing electrodeposition: Influence of metal doping on the properties

Contact Info

Product

Resources

About

Photoelectrochemical Immunosensor for Sensitive Quantification of Prostate Specific Antigen in Human Serum Samples Exploiting BaTiO₃−CdS

Kesterite Cu ₂ ZnSnS ₄ thin films synthesized utilizing electrodeposition: Influence of metal doping on the properties