Effects of light irradiation on the photovoltaic performance and crystal lattices of organic–inorganic perovskites in solar cells

Next Energy, Journal Year: 2025, Volume and Issue: 8, P. 100263 - 100263

Published: March 20, 2025

Language: Английский

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Thermal stability test on flexible perovskite solar cell modules to estimate activation energy of degradation on temperature

Solar Energy Materials and Solar Cells, Journal Year: 2024, Volume and Issue: 277, P. 113148 - 113148

Published: Sept. 2, 2024

The thermal stability of methylammonium lead iodide (MAPbI3)-based flexible perovskite solar cell (PSC) modules was studied. For this purpose, PSC modules, consisting 10 serially connected cells with an aperture area 9 cm2, were heated at 85 °C, 95 and 105 °C for 4000 h. parameters periodically measured by interrupting the tests. Evolution series resistance, short circuit current, fill factor showed monotonic reduction, whereas shunt resistance open voltage depicted three stage degradation: (i) initial rapid degradation; (ii) quasi stable range; (iii) gradual degradation stages, which are indication presence several mechanisms. Using Arrhenius model, activation energy (Ea) Ea 1.062 eV (102.5 kJ/mol) obtained maximum output total device. Device lifetime stability, is defined as point where efficiency has reduced to 80 % its value, also estimated module temperature 45 °C.

Language: Английский

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Space-Charge-Limited Current Measurements: A Problematic Technique for Metal Halide Perovskites

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: unknown, P. 10001 - 10008

Published: Sept. 24, 2024

Space-charge-limited current (SCLC) measurements play a crucial role in the electrical characterization of semiconductors, particularly for metal halide perovskites. Accurate reporting and analysis SCLC are essential gaining meaningful insights into charge transport defect density these systems. Unfortunately, performing on perovskites is complicated by their mixed electronic-ionic conductivity. This complexity led to data often being incorrectly analyzed using simplified models unsuitable materials reported without information about how were performed. In light recently published data, common challenges perovskite addressed, solutions discussed this paper. The applicability often-used analytical models, overlooked issues related ionic-electronic conductivity perovskites, creating single-carrier devices investigated drift-diffusion simulations. Finally, guidelines more accurate improved provided.

Language: Английский

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Restraining ion migration stabilizes perovskite solar cells

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 632, P. 236318 - 236318

Published: Jan. 27, 2025

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