Lead-free MAGeI3 as a suitable alternative for MAPbI3 in nanostructured perovskite solar cells: a simulation study

Mehrabian, Masood; Akhavan, Omid; Rabiee, Navid; Afshar, Elham Norouzi; Zare, Ehsan Nazarzadeh

doi:10.1007/s11356-023-26497-1

Cited by 13 publications

(3 citation statements)

References 36 publications

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“…Nt (cm −3 ) PCE (MAPbI3) PCE (FASnI3) 1 × 10 11 7.18 10.55 1 × 10 12 7.18 10.55 1 × 10 13 7.13 10.52 1 × 10 14 6.68 10.32 2.5 × 10 14 6.06 10.12 1 × 10 15 4.39 8.85 2 × 10 15 3.45 7.83 1 × 10 16 4 5.03 By increasing the defect density in the absorber layer, the PCE of the cells, at first, decreased sharply and then showed a nearly saturated trend in both devices. Increasing the defects results in the enlargement of the series resistance of the device and, correspondingly, the reduction in the efficiency.…”

Section: Effect Of Perovskite Defect Density (N T ) On the Device's P...mentioning

confidence: 99%

“…Therefore, introducing non-toxic elements into the perovskite structure is required. In this regard, different kinds of less toxic cations including Sn, Ge, Bi, Sb, and Ti could be substitute elements for lead in PSCs [ 14 , 15 ]. Among them, Sn-based halide perovskites have received more attention because of their similar properties to Pb-halide PSCs and comparable PCE values [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

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Using Cu2O/ZnO as Two-Dimensional Hole/Electron Transport Nanolayers in Unleaded FASnI3 Perovskite Solar Cells

Mehrabian,

Taleb-Abbasi,

Akhavan

2024

Materials

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A Pb-free FASnI3 perovskite solar cell improved by using Cu2O/ZnO as two-dimensional-based hole/electron transport nanolayers has been proposed and studied by using a SCAPS-1D solar simulator. To calibrate our study, at first, an FTO/ZnO/MAPbI3/Cu2O/Au multilayer device was simulated, and the numerical results (including a conversion efficiency of 6.06%, an open circuit potential of 0.76 V, a fill factor parameter of 64.91%, and a short circuit electric current density of 12.26 mA/cm2) were compared with the experimental results in the literature. Then, the conversion efficiency of the proposed FASnI3-based solar cell was found to improve to 7.83%. The depth profile energy levels, charge carrier concentrations, recombination rate of electron/hole pair, and the FASnI3 thickness-dependent solar cell efficiency were studied and compared with the results obtained for the MAPbI3-containing device (as a benchmark). Interestingly, the FASnI3 material required to obtain an optimized solar cell is one-half of the material required for an optimized MAPbI3-based device, with a thickness of 200 nm. These results indicate that developing more environmentally friendly perovskite solar cells is possible if suitable electron/hole transport layers are selected along with the upcoming Pb-free perovskite absorber layers.

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Section: Effect Of Perovskite Defect Density (N T ) On the Device's P...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Using Cu2O/ZnO as Two-Dimensional Hole/Electron Transport Nanolayers in Unleaded FASnI3 Perovskite Solar Cells

Mehrabian,

Taleb-Abbasi,

Akhavan

2024

Materials

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“…18) Furthermore, the length of GaO's covalent bond (1.92 Å) is close to that of ZnO (2.001 Å). 19) Because of their low production cost, large storage capacity, and environmental friendliness, metal conductive oxide-based ZnO such as Ga-doped or Al-doped ZnO (GZO or AZO) films have become popular in a variety of fields, including photovoltaic (PV) solar cells. 20,21) Moreover, compared to SnO 2 or In 2 O 3 -based films, ZnObased films are more robust against reductive hydrogen plasma which is generally used for fabricating microcrystalline silicon (μ-Si: H) or amorphous (a-Si: H) type solar cells.…”

Section: Introductionmentioning

confidence: 99%

Theoretical verification of using the Ga-doped ZnO as a charge transport layer in an inorganic perovskite solar cell

Ahmed

Akhtaruzzaman

Zulhafizhazuan

et al. 2023

Jpn. J. Appl. Phys.

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The study encompasses the idea to employ a single bandgap-graded transport layer in lieu of two different (transparent conducting oxide(TCO) and electron transport layer(ETL) layers in the perovskite solar cell to increase the overall device's functionality using Numerical simulation. The thickness and defect density of the absorber layer have been varied to identify the optimal cell parameter values. Maximum power conversion efficiency (PCE) has been recorded as 22.17 % at 1E13 cm-3 defect density in the absorber. These findings demonstrate the numerical modelling limitations for the relationship between defect mechanism and performance. The activation energy and effects of series resistance (Rs) on solar cells have also been assessed. The temperature degradation gradient of the proposed structure GZO/CsGeI3/NiO/Au has been found 3% only with a PCE of 22.17% that validates the concept of using bandgap graded transport layer and paves the way for a new era for perovskite research.

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Long‐Term Comparisons of Photoluminescence Affected by Organic Cations of Formamidinium and Methylammonium in Monophasic Lead Iodide Perovskite Quantum Dots

Heo,

Kim,

Park

et al. 2024

Chemistry An Asian Journal

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This study compared the photoluminescence (PL) stabilities of formamidinium (FA) and methylammonium (MA) in lead iodide perovskite quantum dots (QDs). To exclude other factors, such as size and purity, that may affect stability, MAPbI3 and FAPbI3 QDs with nearly identical sizes (~10.0 nm) were synthesized by controlling the ligand concentration and synthesis temperature. Transmission electron microscopy images and X‐ray diffraction patterns confirmed homogeneous single‐phase perovskite structures. Additionally, the bandgaps and sizes of the synthesized QDs closely matched those of the infinite quantum well model, which guaranteed that the photostability was solely caused by the different organic molecules in the two QDs. We analyzed the PL peak centers and full‐width at half maximum of the QDs for 32 days. The enhanced stability of FAPbI3 was found to be caused by the nearly zero redshift (1.615 eV) of its PL peak, in contrast to the redshift (1.685→1.670 eV) of that of MAPbI3.

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Lead-free MAGeI3 as a suitable alternative for MAPbI3 in nanostructured perovskite solar cells: a simulation study

Cited by 13 publications

References 36 publications

Using Cu2O/ZnO as Two-Dimensional Hole/Electron Transport Nanolayers in Unleaded FASnI3 Perovskite Solar Cells

Using Cu2O/ZnO as Two-Dimensional Hole/Electron Transport Nanolayers in Unleaded FASnI3 Perovskite Solar Cells

Theoretical verification of using the Ga-doped ZnO as a charge transport layer in an inorganic perovskite solar cell

Long‐Term Comparisons of Photoluminescence Affected by Organic Cations of Formamidinium and Methylammonium in Monophasic Lead Iodide Perovskite Quantum Dots

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