Performance analysis of MAPbI3 based perovskite solar cells employing diverse charge selective contacts: Simulation study

Raoui, Yassine; Ez‐Zahraouy, H.; Tahiri, N.; Bounagui, O. El; Ahmad, Shahzada; Kazim, Samrana

doi:10.1016/j.solener.2019.10.009

Cited by 307 publications

(160 citation statements)

References 54 publications

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“…The reported parameters was limited and with the compositional engineering of perovskite, energy level will change and importantly the ETL used suffer from, lower electron mobility which causes insufficient charge carrier separation at the interface and hysteresis [27], the UV instability of TiO2 yields to rapid decrease in the performance [28]. Earlier, we have shown that (FAPbI3)0.85(MAPbBr3)0.15 as light harvester in PSCs showed improved stability under outdoor conditions [18], and theoretically we analyzed the performance of PSCs using SnO2 as an alternative of TiO2 [3]. To overcome intriguing stability and performance issue we undertook mechanistic study in a configuration of FTO/SnO2/(FAPbI3)0.85MAPbBr3)0.15/Spiro-OMeTAD/Au which can elucidate the role of spike and spoke with an electron affinity of 4.15 eV for perovskite layer.…”

Section: Introductionmentioning

confidence: 99%

“…One of the seminal scientific events of 2009 was the report of perovskite solar cells (PSCs) fabrication which gave 3.8% power conversion efficiency (PCE) [1]. After a decade of highly intense efforts by researchers across the globe, PSCs has reached the certified PCE of 25.2% [2], while theoretical approach for this has also been reported [3].…”

Section: Introductionmentioning

confidence: 99%

“…It has been reported that decreased the VBO is preferable to reduce the charge recombination at interface but high VBO results in low FF[24], we speculate this behavior does not originate from the beginning, there is an optimum value that can activate this processes due to the absorber energy level. In our case we elucidated the optimum value of VBO, equal to −0.41eV using in the same time the optimized value of CBO, according to our previous study[3] that deep lowest unoccupied molecule level (LUMO)…”

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confidence: 99%

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Energy level engineering of charge selective contact and halide perovskite by modulating band offset: Mechanistic insights

Raoui

Ez‐Zahraouy

Kazim

et al. 2021

Journal of Energy Chemistry

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Mixed cation and anion based perovskites solar cells (FAPbI3)0.85(MAPbBr3)0.15 gave enhanced stability under outdoor conditions, however, it yielded limited power conversion efficiency when SnO2 and Spiro-OMeTAD were employed as electron and hole transport layer (ETL/HTL). The inevitable interfacial recombination of charge carriers at ETL/perovskite and perovskite/HTL interface diminished the efficiency in planar (n-i-p) perovskite solar cells. Employing computational approach for uni-dimensional device simulator, the effect of band offset on charge recombination at both interfaces were investigated. We noted that it acquired cliff structure when the conduction band minimum of the ETL is lower than that of the perovskite, and thus maximizes interfacial recombination. However, if the conduction band minimum of ETL is higher than perovskite, i.e. spike structure is formed, which improve the performance of solar cell up to an optimum value of conduction band offset allowing to reach performance of 25.21%, with an open circuit voltage (Voc) of 1231 mV, a current density Jsc of 24.57 mA/cm 2 and a fill factor of 83.28%. Additionally, we found that beyond the optimum offset value, large spike structure could decrease the performance. With an optimized, energy level of Spiro-OMeTAD and the thickness of mixed-perovskite layer performance of 26.56 % can be attained. Our results demonstrate a detailed understanding about the energy level tuning between the charge selective layers and perovskite and furthermore how the improvement in PV performance can be achieved by adjusting the energy level offset.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Energy level engineering of charge selective contact and halide perovskite by modulating band offset: Mechanistic insights

Raoui

Ez‐Zahraouy

Kazim

et al. 2021

Journal of Energy Chemistry

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“…15 Such results were obtained by reducing the defect density in the active layer, growth control of CsPbI2Br through optimized annealing temperature 16 , using effective anti-solvent approach 17 or minimizing the energy level gap at the charge selective layers, 18 similar to hybrid lead halide PSCs. 19 However, the performance remains lower from the theoretical limit of 22.1 % PCE and 1.65 Voc, when 500 nm thick CsPbI2Br was used. 20 To achieve the theoretical efficiency limit, the strategy should be focus on reducing the defect density of the active layer, and it should be less than the current value of 3.64 E15 cm -3 .…”

Section: Introductionmentioning

confidence: 93%

“…The simulations were performed using SCAPS 3.3.07 software, 19 based on the Poisson equation 1, and the continuity equations for electrons (2) and holes (3)…”

Section: Theory and Computational Detailsmentioning

confidence: 99%

Unravelling the theoretical window to fabricate high performance inorganic perovskite solar cells

Raoui

Ez‐Zahraouy

Ahmad

et al. 2021

Sustainable Energy Fuels

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Comparative Study on the Performance of Different Lead‐Based and Lead‐Free Perovskite Solar Cells

Jayan

Sebastian

2021

Advcd Theory and Sims

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A comparative theoretical study on the performance of perovskite solar cells (PSCs) with methyl ammonium lead iodide (MAPbI3) and methyl ammonium germanium iodide (MAGeI3) as absorber layers is reported by modeling the solar cells for a number of electron transport materials (ETMs), hole transport materials, and back‐contact metals using solar cell capacitance simulator 1D tool. For MAPbI3 as the absorber layer, the best photovoltaic performance is observed for the configuration glass/fluorine‐doped tin oxide (FTO)/SnO2/MAPbI3/NiO/Au with a power conversion efficiency (PCE) of 20.58% and a fill factor (FF) of 68.34% and for MAGeI3, the configuration glass/FTO/SnO2/MAGeI3/CuO/Pd exhibits the best performance with a PCE of 13.12% and a FF of 68.29%. This study indicates that the low‐cost metal oxide SnO2 is a better substitute for the commonly used TiO2 as ETM, and the metal oxides like NiO and CuO provide a higher PCE for device configurations with MAPbI3 and MAGeI3, respectively, as the absorber layer. The low‐cost back‐contact metal Pd provides a better performance for MAGeI3‐based PSCs. This study also indicates that the nontoxic MAGeI3‐based PSCs can be used for commercial applications as they are more thermally stable than the MAPbI3‐based PSCs and provide an equally good quantum efficiency curve as that of MAPbI3‐based PSCs.

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Performance analysis of MAPbI3 based perovskite solar cells employing diverse charge selective contacts: Simulation study

Cited by 307 publications

References 54 publications

Energy level engineering of charge selective contact and halide perovskite by modulating band offset: Mechanistic insights

Energy level engineering of charge selective contact and halide perovskite by modulating band offset: Mechanistic insights

Unravelling the theoretical window to fabricate high performance inorganic perovskite solar cells

Comparative Study on the Performance of Different Lead‐Based and Lead‐Free Perovskite Solar Cells

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