Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites
ABSTRACT The industrialization of perovskite thin‐film photovoltaics (PVs) has attracted global attention owing to their high photoelectric conversion efficiencies (PCEs). Seasonal temperature cycling significantly impacts the efficiency and stability of these devices, yet this phenomenon remains un...
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Wiley
2025-07-01
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| Online Access: | https://doi.org/10.1002/eom2.70019 |
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| author | Shengjian Qin Jiayu Song Yinan Jiao Jiale Meng Hang Su Jinjin Zhao |
| author_facet | Shengjian Qin Jiayu Song Yinan Jiao Jiale Meng Hang Su Jinjin Zhao |
| author_sort | Shengjian Qin |
| collection | DOAJ |
| description | ABSTRACT The industrialization of perovskite thin‐film photovoltaics (PVs) has attracted global attention owing to their high photoelectric conversion efficiencies (PCEs). Seasonal temperature cycling significantly impacts the efficiency and stability of these devices, yet this phenomenon remains underexplored. This study investigates the influences of freezing thermal cycling (between near 0°C and 60°C) on the PV performance of traditional methylammonium lead iodide (MAPbI3) perovskite films. The results show that freezing thermal cycling introduces tensile lattice strain along [110] direction in MAPbI3 perovskite films. The sample without thermal cycling exhibits the minimal tensile lattice strain of 0.32%, resulting in a minimal bandgap of 1.588 eV, reduced defect density, and extended carrier lifetime of 33.78 ns. The PV device using this perovskite film as the absorber layer demonstrates a maximum photocurrent of 83 μA. Theoretical calculations confirm that a moderate tensile strain along the [110] direction in tetragonal MAPbI3 phase enhances the photoelectric conversion performance by reducing the bandgap and increasing the formation energy of iodine vacancies. These results highlight freezing thermal cycling as an effective strain engineering strategy offers a scalable approach for tuning photoelectric conversion performance of perovskite‐based devices. |
| format | Article |
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| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley |
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| spelling | doaj-art-0d7bc48ea25a4b8e98971b3d36b51c092025-07-17T05:16:44ZengWileyEcoMat2567-31732025-07-0177n/an/a10.1002/eom2.70019Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide PerovskitesShengjian Qin0Jiayu Song1Yinan Jiao2Jiale Meng3Hang Su4Jinjin Zhao5College of Chemistry and Materials Science, Hebei Technology Innovation Center for Energy Conversion Materials and Devices, Engineering Research Center of Thin Film Solar Cell Materials and Devices, Hebei Province Hebei Normal University Shijiazhuang ChinaCollege of Chemistry and Materials Science, Hebei Technology Innovation Center for Energy Conversion Materials and Devices, Engineering Research Center of Thin Film Solar Cell Materials and Devices, Hebei Province Hebei Normal University Shijiazhuang ChinaSchool of Materials Science and Engineering Shijiazhuang Tiedao University Shijiazhuang ChinaSchool of Materials Science and Engineering Shijiazhuang Tiedao University Shijiazhuang ChinaCollege of Chemistry and Materials Science, Hebei Technology Innovation Center for Energy Conversion Materials and Devices, Engineering Research Center of Thin Film Solar Cell Materials and Devices, Hebei Province Hebei Normal University Shijiazhuang ChinaCollege of Chemistry and Materials Science, Hebei Technology Innovation Center for Energy Conversion Materials and Devices, Engineering Research Center of Thin Film Solar Cell Materials and Devices, Hebei Province Hebei Normal University Shijiazhuang ChinaABSTRACT The industrialization of perovskite thin‐film photovoltaics (PVs) has attracted global attention owing to their high photoelectric conversion efficiencies (PCEs). Seasonal temperature cycling significantly impacts the efficiency and stability of these devices, yet this phenomenon remains underexplored. This study investigates the influences of freezing thermal cycling (between near 0°C and 60°C) on the PV performance of traditional methylammonium lead iodide (MAPbI3) perovskite films. The results show that freezing thermal cycling introduces tensile lattice strain along [110] direction in MAPbI3 perovskite films. The sample without thermal cycling exhibits the minimal tensile lattice strain of 0.32%, resulting in a minimal bandgap of 1.588 eV, reduced defect density, and extended carrier lifetime of 33.78 ns. The PV device using this perovskite film as the absorber layer demonstrates a maximum photocurrent of 83 μA. Theoretical calculations confirm that a moderate tensile strain along the [110] direction in tetragonal MAPbI3 phase enhances the photoelectric conversion performance by reducing the bandgap and increasing the formation energy of iodine vacancies. These results highlight freezing thermal cycling as an effective strain engineering strategy offers a scalable approach for tuning photoelectric conversion performance of perovskite‐based devices.https://doi.org/10.1002/eom2.70019hybrid perovskiteslattice strainphotocurrentthermal cycling |
| spellingShingle | Shengjian Qin Jiayu Song Yinan Jiao Jiale Meng Hang Su Jinjin Zhao Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites EcoMat hybrid perovskites lattice strain photocurrent thermal cycling |
| title | Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites |
| title_full | Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites |
| title_fullStr | Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites |
| title_full_unstemmed | Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites |
| title_short | Freezing Thermal Cycling Modulation of the Photoelectric Conversion in Organic Metal Halide Perovskites |
| title_sort | freezing thermal cycling modulation of the photoelectric conversion in organic metal halide perovskites |
| topic | hybrid perovskites lattice strain photocurrent thermal cycling |
| url | https://doi.org/10.1002/eom2.70019 |
| work_keys_str_mv | AT shengjianqin freezingthermalcyclingmodulationofthephotoelectricconversioninorganicmetalhalideperovskites AT jiayusong freezingthermalcyclingmodulationofthephotoelectricconversioninorganicmetalhalideperovskites AT yinanjiao freezingthermalcyclingmodulationofthephotoelectricconversioninorganicmetalhalideperovskites AT jialemeng freezingthermalcyclingmodulationofthephotoelectricconversioninorganicmetalhalideperovskites AT hangsu freezingthermalcyclingmodulationofthephotoelectricconversioninorganicmetalhalideperovskites AT jinjinzhao freezingthermalcyclingmodulationofthephotoelectricconversioninorganicmetalhalideperovskites |