Synthesis and characterization of CdS window layers for PbS thin film solar cells

Göde, Fatma; Ünlü, Serdar

doi:10.1016/j.mssp.2018.10.011

Cited by 61 publications

(22 citation statements)

References 25 publications

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“…All the samples were highly transparent in the near-infrared region [24]. Meanwhile, the rise in the transmittance of the films and peak movement of the transmission spectrum to the right with increasing temperature could be attributed to less light scattering due to the better crystal structure and surface properties, a reduction in voids and lattice imperfections, and an increase in grain size [33]. The band gap was extracted using the optical absorbance data by extrapolating the straight line of the graph to the zero absorption coefficient that passed through the energy axis [27].…”

Section: Optical Analysismentioning

confidence: 96%

The Role of Deposition Temperature in the Photovoltaic Properties of RF-Sputtered CdSe Thin Films

et al. 2021

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Cadmium selenide (CdSe) thin films were grown on borosilicate glass substrates using the RF magnetron sputtering method. In this study, CdSe thin film was deposited at a deposition temperature in the range of 25 °C to 400 °C. The influence of deposition or growth temperature on the structural, morphological, and opto-electrical properties of CdSe films was investigated elaborately to achieve a good-quality window layer for solar-cell applications. The crystal structure, surface morphology, and opto-electrical characteristics of sputtered CdSe films were determined using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV–Vis spectrophotometry, and Hall effect measurement, respectively. The XRD results revealed the polycrystalline nature of CdSe, with a hexagonal structure having a strong preferential orientation toward the (002) plane. As evident from the FESEM images, the average grain size and surface morphology of the films were dependent on deposition temperatures. The carrier concentration was obtained as 1014 cm−3. The band gap in the range of 1.65–1.79 eV was found. The explored results suggested that sputtered CdSe thin film deposited at 300 °C has the potential to be used as a window layer in solar cells.

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Section: Optical Analysismentioning

confidence: 96%

The Role of Deposition Temperature in the Photovoltaic Properties of RF-Sputtered CdSe Thin Films

et al. 2021

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“…To use as an absorber layer, PbS has interesting features like direct bandgap energy (0.41 eV at 300 K) ptype conductivity, and large exciton radius (18 nm) which provides strong quantum confinement of electrons and holes, thus increasing the absorption for solar radiation in the near infrared region [3]. In this way, CdS/PbS thin film solar cells with layers deposited by means of chemical bath deposition have been investigated by several authors, where they have obtained good efficiencies between 0.44 % and 4.85 % [3][4][5][6]. Currently, chemical bath deposition (CBD) is a low-cost, scalable and easy technique to synthesize semiconductor thin-films [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…In this way, CdS/PbS thin film solar cells with layers deposited by means of chemical bath deposition have been investigated by several authors, where they have obtained good efficiencies between 0.44 % and 4.85 % [3][4][5][6]. Currently, chemical bath deposition (CBD) is a low-cost, scalable and easy technique to synthesize semiconductor thin-films [3][4][5][6][7]. Now, in both semiconductors it is possible to modify their properties by introducing metallic dopants into their structure, like its bandgap value and electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al-doping on the efficiency of chemically-deposited CdS/PbS thin film solar cells

Fernández-Pérez¹,

Muñoz²,

Vargas³

et al. 2021

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Using chemical bath deposition in an ammonia-free system, CdS/PbS solar cells have been synthesized with different Al content in their composition and varying its absorber layer thickness. Nanocrystalline CdS thin-films with an average thickness of 140 nm were prepared and, subsequently, PbS thin-films with two different thicknesses (330 and 790 nm) were grown on the CdS. X-ray diffraction studies shows that CdS and PbS thin films have a hexagonal and cubic structure, respectively. The illuminated current/voltage characteristic curves of these p-n junctions were measured using a 300 W solar simulator at air mass 1.5, and a frequency of 50-60 Hz. It was found that Al doping decreases the conversion efficiency of the solar cells with the thinnest absorber layer, from 0.19 % to 0.05 %, and for those with thicker layers, from 0.19 % to 0.03 %.

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“…Based on these attributes, CdS is utilized in a wide variety of device fabrication applications [3,4,5] such as solar cells, photoconductors, green lasers, photovoltaic, gas sensing and light emitting diode etc. [6]. Due to the third order non-linear optical behavior of CdS, its films are widely employed in non-linear optical devices [7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Refractive Index of Cadmium Sulfide Films Determined from Transmittance Measurements

Shah

Ahmad

Nasar

2019

SIR

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In the present work the refractive indices of thermally evaporated films of cadmium sulfide (CdS) on fused silica substrates were obtained from measurement of transmittance (T, alone) at normal incidence. Earlier, the same were determined by using measurements of reflectance (R) and transmittance (T) again at normal incidence. On comparison of the two results, we noted that the present results are in fact more, closer than those obtained earlier to the corresponding values reported for the bulk cadmium sulfide.

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Synthesis and characterization of CdS window layers for PbS thin film solar cells

Cited by 61 publications

References 25 publications

The Role of Deposition Temperature in the Photovoltaic Properties of RF-Sputtered CdSe Thin Films

The Role of Deposition Temperature in the Photovoltaic Properties of RF-Sputtered CdSe Thin Films

Effect of Al-doping on the efficiency of chemically-deposited CdS/PbS thin film solar cells

Refractive Index of Cadmium Sulfide Films Determined from Transmittance Measurements

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