scholarly journals On the Origin of the Ideality Factor in Perovskite Solar Cells

2020 ◽  
Vol 10 (27) ◽  
pp. 2000502 ◽  
Author(s):  
Pietro Caprioglio ◽  
Christian M. Wolff ◽  
Oskar J. Sandberg ◽  
Ardalan Armin ◽  
Bernd Rech ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ideality Factor ◽  
Perovskite Solar Cells

scholarly journals Identifying Dominant Recombination Mechanisms in Perovskite Solar Cells by Measuring the Transient Ideality Factor

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Phil Calado ◽  
Dan Burkitt ◽  
Jizhong Yao ◽  
Joel Troughton ◽  
Trystan M. Watson ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ideality Factor ◽  
Perovskite Solar Cells

Interpretation and evolution of open-circuit voltage, recombination, ideality factor and subgap defect states during reversible light-soaking and irreversible degradation of perovskite solar cells

2018 ◽  
Vol 11 (1) ◽  
pp. 151-165 ◽  
Author(s):  
Wolfgang Tress ◽  
Mozhgan Yavari ◽  
Konrad Domanski ◽  
Pankaj Yadav ◽  
Bjoern Niesen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ideality Factor ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Defect States ◽  
Bulk Surface

Insights into the interplay of different recombination mechanisms and their origins (bulk, surface) are provided comparing fresh, light-soaked and aged devices.

scholarly journals Numerical Analysis to Determine Reliable One-Diode Model Parameters for Perovskite Solar Cells

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1963 ◽  
Author(s):  
Esteban Velilla ◽  
Juan Cano ◽  
Keony Jimenez ◽  
Jaime Valencia ◽  
Daniel Ramirez ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ideality Factor ◽  
Perovskite Solar Cells ◽  
Global Solutions ◽  
Standard Test ◽  
Optimization Process ◽  
Model Parameters ◽  
Estimated Parameters ◽  
The One ◽  
Process Solutions

With the aim to determine the photo-generated current, diode saturation current, ideality factor, shunt, and series resistances related to the one-diode model for p-i-n planar perovskite solar cells, reference cells with active area of approximately 1 cm2 and efficiencies ranging between 4.6 and 12.2% were fabricated and characterized at standard test conditions. To estimated feasible parameters, the mean square error between the I-V curve data of these cells and the circuital model results were minimized using a Genetic Algorithm combined with the Nelder-Mead method. When considering the optimization process solutions, a numerical sensitivity analysis of the error as a function of the estimated parameters was carried out. Based on the errors behavior that is showed graphically through maps, it was demonstrated that the set of parameters estimated for each cell were reliable, meaningful, and realistic, and being related to errors lower than 9.1 × 10−9. Therefore, these results can be considered as global solutions of the optimization process. Moreover, based on the lower errors obtained from the optimization process, it was possible to affirm that the one-diode model is suitable to model the I-V curve of perovskite solar cells. Finally, the estimated parameters suggested that the average ideality factor is close to 2 when the fill factor of the I-V curves is higher than 0.5. Lower fill factors corresponded to ideality that was higher than 3, linked to lower efficiencies, and high loses effects reflected on lower shunt resistances. Lower ideality factor of 1.4 corresponds to the best performing solar cells.

scholarly journals Correction: Interpretation and evolution of open-circuit voltage, recombination, ideality factor and subgap defect states during reversible light-soaking and irreversible degradation of perovskite solar cells

2018 ◽  
Vol 11 (3) ◽  
pp. 715-715 ◽  
Author(s):  
Wolfgang Tress ◽  
Mozhgan Yavari ◽  
Konrad Domanski ◽  
Pankaj Yadav ◽  
Bjoern Niesen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ideality Factor ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Defect States ◽  
Energy Environ

Correction for ‘Interpretation and evolution of open-circuit voltage, recombination, ideality factor and subgap defect states during reversible light-soaking and irreversible degradation of perovskite solar cells’ by Wolfgang Tress et al., Energy Environ. Sci., 2018, 11, 151–165.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

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