Influence of deposition time in CdTe thin film properties grown by Close-Spaced Sublimation (CSS) for photovoltaic application

Rahman, Kazi Sajedur; Harif, Muhammad Najib; Rosly, Hasrul Nisham; Kamaruzzaman, M. I.; Akhtaruzzaman, Md.; Alghoul, M. A.; Misran, Halina; Amin, Nowshad

doi:10.1016/j.rinp.2019.102371

Cited by 44 publications

(24 citation statements)

References 37 publications

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“…The results are in line with previous studies [38,39]. Furthermore, numerous methods are available to calculate the diffraction profile, such as the Scherer formula or Williamson-Hall plot [6]. These methods defer in basis, which makes it difficult to compare them directly for a precise grain size estimation [6].…”

Section: Hall Effect Measurementsupporting

confidence: 88%

“…A single grain can comprise several domains with dissimilar orientations. Therefore, the grain size measured by SEM will be always larger or, in case of the perfect grains, equal to that calculated by XRD [6]. Consequently, a grain size measured using SEM is an average value, whereas the Scherrer formula calculates the crystallite size using the diffraction information from a single plane at a particular 2θ and FWHM value.…”

Section: Hall Effect Measurementmentioning

confidence: 96%

“…Furthermore, numerous methods are available to calculate the diffraction profile, such as the Scherer formula or Williamson-Hall plot [6]. These methods defer in basis, which makes it difficult to compare them directly for a precise grain size estimation [6]. XRD calculates the size of the crystalline domains, while SEM shows physical grains.…”

Section: Hall Effect Measurementmentioning

confidence: 99%

“…Overall, the XRD technique provides the crystallite size present in the grains, while the microscopic study via SEM delivers the average grain size of the material. Since grains encompass many crystallites, the crystallite size and grain size are not same [6]. It is quite challenging to understand and control the carrier concentration, resistivity, and mobility in polycrystalline CdSe films.…”

Section: Hall Effect Measurementmentioning

confidence: 99%

“…Over the past 10 years, there has been a remarkable improvement in the efficiency of CdTe-based solar cells, from 16.7% to 22.1% [1,2]. Despite these improvements, there was no noteworthy efficiency changes in CdS/CdTe-based solar cells from 2016 to 2020 [2][3][4][5][6]. The highest efficiency for CdTe solar cells is still 22.1%, even though many studies have been reported so far.…”

Section: Introductionmentioning

confidence: 99%

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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: Hall Effect Measurementsupporting

confidence: 88%

Section: Hall Effect Measurementmentioning

confidence: 96%

Section: Hall Effect Measurementmentioning

confidence: 99%

Section: Hall Effect Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2021

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Electron‐radiation effect on Freon‐gas‐treated CdTe solar cells

Kim

Song

Kim

et al. 2022

Intl J of Energy Research

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Summary In this study, CdTe solar cells were fabricated, with 12%‐13% efficiencies, using CdCl2 dipping and Freon gas treatments and irradiated with a 6‐MeV electron beam of various fluences. The efficiency of the CdCl2‐dipped samples decreased by approximately 61% at a dose of 1 × 1016 e/cm2, while that of the Freon‐gas‐treated samples was reduced by only 43%. The measured external quantum efficiencies indicated that the short‐circuit current density (Jsc) values of the treated devices differed significantly under the electron‐beam irradiation. The Jsc of the CdCl2‐dipped samples decreased from 23.5 to 10.8 mA/cm2, while that of the Freon‐gas‐treated samples decreased from 24.7 to 16.4 mA/cm2. The drift mobility values, derived through time‐of‐flight measurements, decreased by approximately 1000 times in the CdCl2‐dipped device and by ~100 times in the Freon‐gas‐treated device at a dose of 1 × 1016 e/cm2. These results reveal that in electron‐beam‐irradiated devices, the treatment method influences the reduction in Jsc.

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Chemical Bath Deposited CdS Along with Electrodeposited and Closed Space Sublimated CdTe for Solar Cell Fabrication

Gajanayake

Lakmal

Silva

et al. 2022

Springer Proceedings in Energy

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Influence of deposition time in CdTe thin film properties grown by Close-Spaced Sublimation (CSS) for photovoltaic application

Cited by 44 publications

References 37 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

Electron‐radiation effect on Freon‐gas‐treated CdTe solar cells

Chemical Bath Deposited CdS Along with Electrodeposited and Closed Space Sublimated CdTe for Solar Cell Fabrication

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