Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals
Abstract Lattice distortion in perovskites (AMX3) significantly impacts their stability and power conversion efficiency, often in a trade‐off. The inherent lattice distortion is predominantly influenced by the size, orientation, and composition of the A‐site cations. Notably, organic–inorganic hybri...
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Wiley-VCH
2025-05-01
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| Series: | Advanced Materials Interfaces |
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| Online Access: | https://doi.org/10.1002/admi.202400781 |
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| author | Abdulazeez M. Ogunleye Hakseon Lee Adeshina Mohammad Awwal GunWoo Kim Hyunmin Kim Yoonmi Choi Jonghoo Park |
| author_facet | Abdulazeez M. Ogunleye Hakseon Lee Adeshina Mohammad Awwal GunWoo Kim Hyunmin Kim Yoonmi Choi Jonghoo Park |
| author_sort | Abdulazeez M. Ogunleye |
| collection | DOAJ |
| description | Abstract Lattice distortion in perovskites (AMX3) significantly impacts their stability and power conversion efficiency, often in a trade‐off. The inherent lattice distortion is predominantly influenced by the size, orientation, and composition of the A‐site cations. Notably, organic–inorganic hybrid lead halide perovskites with organic cations like methylammonium (MA) and formamidinium (FA) demonstrate high power conversion efficiency but compromised stability. Here, a novel synthesis method is presented for high‐quality strained MAPbI3 single crystals that offers not only enhanced optoelectronic properties but also improved thermal stability. This technique leverages the paramagnetic nature of the MA+ ion to manipulate lattice distortion. During the inverse temperature crystallization process, the dipole moment of the MA+ ion aligns with the direction of the external magnetic field. Correlating Fourier‐transform infrared spectroscopy (FTIR) and X‐ray diffraction (XRD) analysis demonstrates that this alignment, which induces compressive lattice strain, significantly enhances the carrier mobility from 68.1 to 487 cm2 V s−1, representing a sevenfold increase in hole mobility compared to the control sample. Additionally, it increases the carrier lifetime by 123%, from 23.458 to 52.364 ns, and improves thermal stability up to 230 °C. This findings reveal insights into the interplay between structural modifications and electronic properties, paving the way for tailored applications in photovoltaics, light‐emitting devices, and beyond. |
| format | Article |
| id | doaj-art-63302f7a1b534ccaa82af430e75ccc8d |
| institution | OA Journals |
| issn | 2196-7350 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley-VCH |
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| series | Advanced Materials Interfaces |
| spelling | doaj-art-63302f7a1b534ccaa82af430e75ccc8d2025-08-20T01:48:16ZengWiley-VCHAdvanced Materials Interfaces2196-73502025-05-01129n/an/a10.1002/admi.202400781Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single CrystalsAbdulazeez M. Ogunleye0Hakseon Lee1Adeshina Mohammad Awwal2GunWoo Kim3Hyunmin Kim4Yoonmi Choi5Jonghoo Park6School of Electronic and Electrical EngineeringKyungpook National UniversityDaegu 41566 Republic of KoreaSchool of Electronic and Electrical EngineeringKyungpook National UniversityDaegu 41566 Republic of KoreaDivision of BiotechnologyDaegu Gyeongbuk Institute of Science and Technology (DGIST)Daegu 42988 Republic of KoreaSchool of Electronic and Electrical EngineeringKyungpook National UniversityDaegu 41566 Republic of KoreaDivision of BiotechnologyDaegu Gyeongbuk Institute of Science and Technology (DGIST)Daegu 42988 Republic of KoreaChemical Analysis CenterKorea Research Institute of Chemical‐Technology (KRICT)Daejeon 34114 Republic of KoreaSchool of Electronic and Electrical EngineeringKyungpook National UniversityDaegu 41566 Republic of KoreaAbstract Lattice distortion in perovskites (AMX3) significantly impacts their stability and power conversion efficiency, often in a trade‐off. The inherent lattice distortion is predominantly influenced by the size, orientation, and composition of the A‐site cations. Notably, organic–inorganic hybrid lead halide perovskites with organic cations like methylammonium (MA) and formamidinium (FA) demonstrate high power conversion efficiency but compromised stability. Here, a novel synthesis method is presented for high‐quality strained MAPbI3 single crystals that offers not only enhanced optoelectronic properties but also improved thermal stability. This technique leverages the paramagnetic nature of the MA+ ion to manipulate lattice distortion. During the inverse temperature crystallization process, the dipole moment of the MA+ ion aligns with the direction of the external magnetic field. Correlating Fourier‐transform infrared spectroscopy (FTIR) and X‐ray diffraction (XRD) analysis demonstrates that this alignment, which induces compressive lattice strain, significantly enhances the carrier mobility from 68.1 to 487 cm2 V s−1, representing a sevenfold increase in hole mobility compared to the control sample. Additionally, it increases the carrier lifetime by 123%, from 23.458 to 52.364 ns, and improves thermal stability up to 230 °C. This findings reveal insights into the interplay between structural modifications and electronic properties, paving the way for tailored applications in photovoltaics, light‐emitting devices, and beyond.https://doi.org/10.1002/admi.202400781magnetic field‐assisted ITCoctahedral distortionperovskite single crystalsstrained perovskitethermal stability |
| spellingShingle | Abdulazeez M. Ogunleye Hakseon Lee Adeshina Mohammad Awwal GunWoo Kim Hyunmin Kim Yoonmi Choi Jonghoo Park Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals Advanced Materials Interfaces magnetic field‐assisted ITC octahedral distortion perovskite single crystals strained perovskite thermal stability |
| title | Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals |
| title_full | Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals |
| title_fullStr | Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals |
| title_full_unstemmed | Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals |
| title_short | Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals |
| title_sort | inherent lattice distortion engineering via magnetic field for high quality strained mapbi3 perovskite single crystals |
| topic | magnetic field‐assisted ITC octahedral distortion perovskite single crystals strained perovskite thermal stability |
| url | https://doi.org/10.1002/admi.202400781 |
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