Superstrate and substrate thin film configuration of CdS/CZTS solar cell fabricated using SILAR method

Jasmitha, Kaza; Pasumarthi, Mallikarjuna Rao; Avadhani, P. S.

doi:10.1016/j.optlastec.2020.106413

Cited by 16 publications

(5 citation statements)

References 26 publications

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“…To investigate the influence of different additives on the crystal structure, Scherrer’s equation was used to calculate the crystallite size (D) of the CZTS films [ 25 ]. D = 0.9 λ βcos θ where β is the angular full width at half maximum (FWHM), θ is the diffraction angle, λ (1.5406 Å) is the X-ray wavelength, and K is a constant, usually set at K = 0.9.…”

Section: Resultsmentioning

confidence: 99%

Impact of 1,8-Diiodooctane (DIO) Additive on the Active Layer Properties of Cu2ZnSnS4 Kesterite Thin Films Prepared by Electrochemical Deposition for Photovoltaic Applications

et al. 2023

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Kesterite Cu2ZnSnS4 (CZTS) thin films using various 1,8-diiodooctane (DIO) polymer additive concentrations were fabricated by the electrochemical deposition method. The optical, electrical, morphological, and structural properties of the CZTS thin films synthesized using different concentrations of 5 mg/mL, 10 mg/mL, 15 mg/mL, and 20 mg/mL were investigated using different techniques. Cyclic voltammetry exhibited three cathodic peaks at −0.15 V, −0.54 V, and −0.73 V, corresponding to the reduction of Cu2+, Sn2+, Sn2+, and Zn2+ metal ions, respectively. The analysis of the X-ray diffraction (XRD) pattern indicated the formation of the pure kesterite crystal structure, and the Raman spectra showed pure CZTS with the A1 mode of vibration. Field emission scanning electron microscopy (FE-SEM) indicated that the films are well grown, with compact, crack-free, and uniform deposition and a grain size of approximately 4 µm. For sample DIO-20 mg/mL, the elemental composition of the CZTS thin film was modified to Cu:Zn:Sn: and S = 24.2:13.3:12.3:50.2, which indicates a zinc-rich and copper-poor composition. The X-ray photoelectron spectroscopy (XPS) results confirmed the existence of Cu, Sn, Zn, and S elements and revealed the element oxidation states. The electrochemical deposition synthesis increased the absorption of the CZTS film to more than 104 cm−1 with a band gap between 1.62 eV and 1.51 eV. Finally, the photovoltaic properties of glass/CZTS/CdS/n-ZnO/aluminum-doped zinc oxide (AZO)/Ag solar cells were investigated. The best-performing photovoltaic device, with a DIO concentration of 20 mg/mL, had a short-circuit current density of 16.44 mA/cm2, an open-circuit voltage of 0.465 V, and a fill factor of 64.3%, providing a conversion efficiency of 4.82%.

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Section: Resultsmentioning

confidence: 99%

Impact of 1,8-Diiodooctane (DIO) Additive on the Active Layer Properties of Cu2ZnSnS4 Kesterite Thin Films Prepared by Electrochemical Deposition for Photovoltaic Applications

et al. 2023

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“…It is necessary to rinse with deionized water after each dipping step so as to allow for thin film formation on the substrate and also to avoid precipitate formation in the solution [163,166,167]. Jasmitha et al [160] fabricated a CZTS superstrate solar cell without a windows layer. CdS and CZTS absorber layer were deposited by SILAR method.…”

Section: Successive Ionic Layer Adsorption and Reaction (Silar) Techn...mentioning

confidence: 99%

Photovoltaic efficiencies of microwave and Cu2ZnSnS4 (CZTS) superstrate solar cells

Yussuf

Nwambaekwe

Ramoroka

et al. 2023

Materials Today Sustainability

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“…Copper zinc tin sulfide (CZTS) solar cells are a type of thin-film solar cell that is based on abundant and environmentally friendly materials, making them a promising candidate for low-cost and sustainable photovoltaic technology. There are two types of CZTS solar cell structures: substrate configuration and superstrate configuration [35], [36].…”

Section: Introductionmentioning

confidence: 99%

“…In CZTS solar cells, the substrate configuration typically consists of a layer of transparent conductive oxide (TCO) on top of the substrate, followed by a layer of CZTS as the absorber layer, a layer of cadmium sulfide (CdS) as the buffer layer, and a layer of metal (e.g. silver) as the back contact [35], [36].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and fabrication of superstrate and substrate Cu2ZnSnS4/CdS thin film solar cells utilizing copper powder as local materials

Prima

Rahmat

Setiawan

2023

J. ris. kaji. pendidik. fis.

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Cu2ZnSnS4 is a promising material for low-cost thin-film solar cells. This paper reports a new approach to fabricating a solar cell using a Superstrate and Substrate configuration. We utilized a non-vacuum deposition process to deposit Copper Zinc Tin Sulfate (CZTS) and Cadmium Sulphate (CdS) on a glass substrate. To achieve this, we adopted the sol-gel spin coating method for CZTS and the Chemical Bath Deposition (CBD) method for the CdS layer. The solar cell has two structures: ITO/Cu2ZnSnS4/CdS/Ag for substrate configuration and ITO/CdS/Cu2ZnSnS4/Ag for superstrate configuration. The Cu/(Zn+Sn) atomic ratio was set to 0.86, while Zn/Sn was set to 1.25. Our CZTS/CdS solar cell achieved a 48.7 × 10-6 % power conversion efficiency with a 1.40 eV band gap and 98.71 % external quantum efficiency at 373 nm for the superstrate configuration. For the substrate configuration, the power conversion efficiency was 19.0 × 10-6 % with a 1.49 eV bandgap and 95.74 % external quantum efficiency at 321 nm. Based on the results presented in the text, the CZTS solar cell with a superstrate configuration achieved a higher power conversion efficiency and external quantum efficiency than the substrate configuration. The superstrate configuration allowed for better light absorption in the CZTS layer and reduced the reflection of light back into the substrate. This configuration also prevented the back diffusion of CdS into CZTS and improved the electrical performance of the solar cell. Therefore, the superstrate configuration is more efficient than the substrate configuration for CZTS solar cells.

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Superstrate and substrate thin film configuration of CdS/CZTS solar cell fabricated using SILAR method

Cited by 16 publications

References 26 publications

Impact of 1,8-Diiodooctane (DIO) Additive on the Active Layer Properties of Cu2ZnSnS4 Kesterite Thin Films Prepared by Electrochemical Deposition for Photovoltaic Applications

Impact of 1,8-Diiodooctane (DIO) Additive on the Active Layer Properties of Cu2ZnSnS4 Kesterite Thin Films Prepared by Electrochemical Deposition for Photovoltaic Applications

Photovoltaic efficiencies of microwave and Cu2ZnSnS4 (CZTS) superstrate solar cells

Synthesis and fabrication of superstrate and substrate Cu2ZnSnS4/CdS thin film solar cells utilizing copper powder as local materials

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