A step forward toward quantum dots based perovskite solar cells in an ambient environment

Agada, Francis; Abbas, Zameer; Bakht, Khush; Khan, Asad Muhammad; Farooq, Umar; Bilal, Muhammad; Arshad, Muhammad; Khan, Abdul Faheem; Kamboh, Afzal H.; Shaikh, Ahson Jabbar

doi:10.1016/j.optmat.2022.112538

Cited by 14 publications

(1 citation statement)

References 73 publications

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“…The combination of the discussed solar cells may also lead to the formation of heterojunction solar cells that show enhanced photovoltaic properties or characteristics compared with their individual counterparts. A demonstration of such a 2D/3D bulk heterojunction solar cell that consists of a 2D/3D inorganic perovskite has been shown by Kang et al 212 Similarly, a heterojunction solar cell of 2D materials based PSCs and OSCs, 213 quantum dot-based PSCs, 214 graphene quantum dot-based DSSCs, 215 and organic sensitizers for DSSCs 216 have been reported in the literature.…”

Section: Future Perspectivementioning

confidence: 93%

Fourth-generation solar cells: a review

Rehman,

Syed,

Khanam

et al. 2023

Energy Adv.

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Section: Future Perspectivementioning

confidence: 93%

Fourth-generation solar cells: a review

Rehman,

Syed,

Khanam

et al. 2023

Energy Adv.

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Engineered hybrid iron‐cobalt metal oxide nanoparticles for effective adsorption of malachite green dye

Hussain,

Shafaat,

Sarfraz

et al. 2024

J of Chemical Tech & Biotech

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BACKGROUNDHybrid iron and cobalt metal oxide nanoparticles are well known; however, are not optimized in terms of size and stability. We engineered these hybrid nanoparticles using the co‐precipitation method and characterized them by various techniques, which are then used for the effective adsorption and removal of malachite green (MG) dye.RESULTSThe ideal conditions for synthesis are determined to be 50:50 ratio of Fe2O3 and CoO, pH of 11, temperature range of 40 °C–60 °C, and reactant addition time of 20 min. These hybrid nanoadsorbents effectively eliminated MG dye from aqueous solutions. Factors such as initial MG dye concentration, pH of the medium, contact time, temperature, and nanoadsorbent dose were optimized for the MG removal to achieve a maximum removal efficiency of 96.9%. Non‐linear fitting of data indicates that both Langmuir and Freundlich models provided the best fit, suggesting the presence of both monolayer and multilayer adsorption of MG on hybrid nanoparticles. The kinetics of MG dye removal are better controlled by the intraparticle diffusion (IPD) phenomenon. The adsorption of MG onto the hybrid nanoparticles was confirmed to be endothermic, with negative ΔG and positive ΔH values. The optimized synthetic conditions also positively impacted the hybrid nanoparticles which enhanced the adsorption and exhibited ferromagnetic behavior as compared to the superparamagnetic behavior reported in the literature, making them significantly important for dye removal applications.CONCLUSIONThese findings demonstrate the potential of optimized hybrid nanoparticles as effective nanoadsorbents for dye removal applications, with implications for further applications in photocatalysis and sensing. © 2024 Society of Chemical Industry (SCI).

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Hybrid Nickel‐Copper Oxide Nanoparticles: A Multiparametric Study for the Influence of Synthetic Parameters on the Optical and Physical Properties

Majid,

Usman,

Ibrar

et al. 2024

ChemistrySelect

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The hybrid nanoparticles of nickel and copper oxide are optimized by varying synthetic conditions such as precursor salt concentration, rate of reagent addition, pH, and temperature. The resulting nanoparticles are characterized by using UV‐Visible and fluorescence spectroscopy, hydrodynamic size, zeta potential, polydispersity index, SEM, EDX, XRD, and FTIR spectroscopy. The control over composition and physical properties of these hybrid oxides are analyzed through careful variations in the synthetic parameters. UV‐Vis analysis demonstrated the successful synthesis of NiO‐CuO hybrid nanoparticles at various concentrations. NiO dominant hybrids are obtained by quick addition of the reagent and at higher pH, while CuO dominant hybrids require slower addition of reagent and lower pH. The increase in the temperature causes a hypochromic shift in the UV‐Vis absorption, whereas fluorescence is enhanced with increase in the CuO concentration. The fluorescence generally remained stable by varying time of reagent addition, pH, and temperature. More stable and least‐sized NiO‐CuO hybrid nanoparticles are obtained at ratios of 75 : 25 and 25 : 75, by quick addition of reagent, at higher pH levels, and at higher temperatures. A better understanding of their physical and optical properties obtained by varying synthetic parameters may potentially result in their enhanced applications.

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A step forward toward quantum dots based perovskite solar cells in an ambient environment

Cited by 14 publications

References 73 publications

Fourth-generation solar cells: a review

Fourth-generation solar cells: a review

Engineered hybrid iron‐cobalt metal oxide nanoparticles for effective adsorption of malachite green dye

Hybrid Nickel‐Copper Oxide Nanoparticles: A Multiparametric Study for the Influence of Synthetic Parameters on the Optical and Physical Properties

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