Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> Perovskite
Organic inorganic perovskite materials have received increasing attention in the optoelectronic field because of their unique properties. The ultrafast dynamics of photogenerated carriers determine photoelectric conversion efficiency, thus, it is feasible to influence the dynamics behavior of photog...
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MDPI AG
2023-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/17/6064 |
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| author | Menghan Duan Yunpeng Wang Pingli Zhang Luchao Du |
| author_facet | Menghan Duan Yunpeng Wang Pingli Zhang Luchao Du |
| author_sort | Menghan Duan |
| collection | DOAJ |
| description | Organic inorganic perovskite materials have received increasing attention in the optoelectronic field because of their unique properties. The ultrafast dynamics of photogenerated carriers determine photoelectric conversion efficiency, thus, it is feasible to influence the dynamics behavior of photogenerated carriers by regulating A-site cations. This paper mainly used transient absorption spectra (TAS) technology to study the photogenerated carriers relaxation processes of organic–inorganic perovskite Cs<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> materials at different x values. Three sets of time constants were obtained by global fitting at different values of x. The experimental results showed that the crystal structure of perovskite could be affected by adjusting the Cs<sup>+</sup> doping amount, thereby regulating the carrier dynamics. The appropriate amount of A-cation doping not only maintained the organic–inorganic perovskite crystal phase, but also prolonged the photogenerated carrier’s lifetime. The 10% Cs<sup>+</sup> doping Cs<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> perovskite has potential for solar cell applications. We hope that our research can provide dynamics support for the development of organic–inorganic perovskite in solar cells. |
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| id | doaj.art-05eadfe8c8184b9399ac9d2589002280 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T23:18:04Z |
| publishDate | 2023-09-01 |
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| series | Materials |
| spelling | doaj.art-05eadfe8c8184b9399ac9d25890022802023-11-19T08:29:48ZengMDPI AGMaterials1996-19442023-09-011617606410.3390/ma16176064Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> PerovskiteMenghan Duan0Yunpeng Wang1Pingli Zhang2Luchao Du3Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaState Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaInstitute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaInstitute of Atomic and Molecular Physics, Jilin University, Changchun 130012, ChinaOrganic inorganic perovskite materials have received increasing attention in the optoelectronic field because of their unique properties. The ultrafast dynamics of photogenerated carriers determine photoelectric conversion efficiency, thus, it is feasible to influence the dynamics behavior of photogenerated carriers by regulating A-site cations. This paper mainly used transient absorption spectra (TAS) technology to study the photogenerated carriers relaxation processes of organic–inorganic perovskite Cs<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> materials at different x values. Three sets of time constants were obtained by global fitting at different values of x. The experimental results showed that the crystal structure of perovskite could be affected by adjusting the Cs<sup>+</sup> doping amount, thereby regulating the carrier dynamics. The appropriate amount of A-cation doping not only maintained the organic–inorganic perovskite crystal phase, but also prolonged the photogenerated carrier’s lifetime. The 10% Cs<sup>+</sup> doping Cs<sub>x</sub>MA<sub>1−x</sub>PbI<sub>3</sub> perovskite has potential for solar cell applications. We hope that our research can provide dynamics support for the development of organic–inorganic perovskite in solar cells.https://www.mdpi.com/1996-1944/16/17/6064Cs<sup>+</sup> doping MAPbI<sub>3</sub> perovskitetransient absorption spectracrystal structurecarriers dynamics |
| spellingShingle | Menghan Duan Yunpeng Wang Pingli Zhang Luchao Du Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> Perovskite Materials Cs<sup>+</sup> doping MAPbI<sub>3</sub> perovskite transient absorption spectra crystal structure carriers dynamics |
| title | Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> Perovskite |
| title_full | Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> Perovskite |
| title_fullStr | Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> Perovskite |
| title_full_unstemmed | Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> Perovskite |
| title_short | Effect of Cs<sup>+</sup> Doping on the Carrier Dynamics of MAPbI<sub>3</sub> Perovskite |
| title_sort | effect of cs sup sup doping on the carrier dynamics of mapbi sub 3 sub perovskite |
| topic | Cs<sup>+</sup> doping MAPbI<sub>3</sub> perovskite transient absorption spectra crystal structure carriers dynamics |
| url | https://www.mdpi.com/1996-1944/16/17/6064 |
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