Surface modification of SnO2 electron transporting layer by graphene quantum dots for performance and stability improvement of perovskite solar cells

Panyathip, Rangsan; Sucharitakul, Sukrit; Hongsith, Kritsada; Bumrungsan, Wakul; Yarangsi, Vasan; Phaduangdhitidhada, Surachet; Chanlek, Narong; Choopun, Supab

doi:10.1016/j.ceramint.2024.06.293

Cited by 2 publications

References 48 publications

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Design and Numerical Simulation of CuBi2O4 SCs with GQDs as Hole Transport Layer: Ideal and Non-ideal Conditions

Panachikkool,

Asaithambi

et al. 2024

Preprint

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The simulation of ideal and non-ideal conditions using the SCAPS-1D simulator for novel structure Ag/FTO/CuBi2O4/GQD/Au was done for the first time. The recombination of charge carriers in CuBi2O4 is an inherent problem due to very low hole mobility and polaron transport in the valence band. The in-depth analysis of the simulation result revealed that GQDs can act as an appropriate hole transport layer (HTL) and can enhance the hole transportation. The simulation was done under ideal and nonideal conditions. The non-ideal conditions include parasitic resistances, reflection losses, radiative, and Auger recombination whereas the ideal condition was studied without the inclusion of any losses. Under ideal conditions, the cell Ag/FTO/CuBi2O4/GQD/Au exhibited a photovoltaic (PV) parameter such as open circuit voltage (Voc), short circuit current (Jsc), fill factor (FF), photo conversion efficiency (PCE) are 1.39V, 25.898 mA/cm2, 90.92%, and 32.79%, respectively. The effect of various cell parameters such as the thickness of the absorber layer, HTL layer, and FTO, acceptor and defect density, the bandgap of the absorber and HTL layer, series and shunt resistance, back and front contact materials, radiation and Auger recombination of the absorber layer, reflection losses on the efficiency of the proposed cell is analysed. The drastic reduction in all PV parameters was observed under non-ideal conditions and the PV parameters are Voc (1.22V), Jsc (2.904 mA/cm2), FF (86.3), and PCE of 3.06%. The charge kinetics such as impedance, conductivity, and capacitance plots, and possible reasons for reductions in PV parameters are discussed in detail.

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Design and Numerical Simulation of CuBi2O4 SCs with GQDs as Hole Transport Layer: Ideal and Non-ideal Conditions

Panachikkool,

Asaithambi

et al. 2024

Preprint

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Structure and Properties of Thin Films Prepared on Flexible Substrates from SnCl4-Derived Solutions

Dmitriyeva,

Nurbaev,

Bondar

et al. 2024

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Thin transparent films of SnO2 were obtained from aqueous–alcohol solutions of SnCl4 on a flexible polyethylene terephthalate (PET) substrate by spray pyrolysis at 100 °C. The influence of the addition of aqueous ammonia to the film-forming solution on the different properties has been studied. Properties studied include surface morphology, phase composition and transparency of the formed films and the crystallization processes and band gap of the film material. It was found that the addition of aqueous ammonia causes the formation of skeletal crystals (NH4)2[SnCl6] with a perovskite structure in the film structure. The resulting films are promising for use in the technology of manufacturing flexible solar cells.

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Surface modification of SnO2 electron transporting layer by graphene quantum dots for performance and stability improvement of perovskite solar cells

Cited by 2 publications

References 48 publications

Design and Numerical Simulation of CuBi2O4 SCs with GQDs as Hole Transport Layer: Ideal and Non-ideal Conditions

Design and Numerical Simulation of CuBi2O4 SCs with GQDs as Hole Transport Layer: Ideal and Non-ideal Conditions

Structure and Properties of Thin Films Prepared on Flexible Substrates from SnCl4-Derived Solutions

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