Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead Substitution
A crucial problem of the photoinduced degradation of perovskite semiconductors based on complex lead halides has been addressed here by suppressing PbI<sub>2</sub> photolysis to metallic lead. The systematic screening of >30 modifying cations introduced as substituents for 5% of Pb<...
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MDPI AG
2025-01-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/13/1/13 |
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| author | Marina I. Ustinova Gennadii V. Shilov Pavel A. Troshin Sergey M. Aldoshin Lyubov A. Frolova |
| author_facet | Marina I. Ustinova Gennadii V. Shilov Pavel A. Troshin Sergey M. Aldoshin Lyubov A. Frolova |
| author_sort | Marina I. Ustinova |
| collection | DOAJ |
| description | A crucial problem of the photoinduced degradation of perovskite semiconductors based on complex lead halides has been addressed here by suppressing PbI<sub>2</sub> photolysis to metallic lead. The systematic screening of >30 modifying cations introduced as substituents for 5% of Pb<sup>2+</sup> in the PbI<sub>2</sub> composition has revealed their tremendous effects on the rate of material degradation under light exposure. Thus, the most successful stabilizing cations could maintain a high absorbance of the Pb<sub>0.95</sub>M<sub>0.1/n</sub>I<sub>2</sub> films and block Pb<sup>0</sup> formation after 400 h of continuous illumination, when the non-modified PbI<sub>2</sub> films completely decomposed to Pb<sup>0</sup> and I<sub>2</sub>. The obtained results present a promising solution for the problem of metallic lead formation in the active layer of perovskite solar cells during their operation, which can pave the way for the development of a new generation of highly efficient and stable perovskite photovoltaics. |
| format | Article |
| id | doaj-art-522e828ede014665b2f54d231f752487 |
| institution | Kabale University |
| issn | 2304-6740 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj-art-522e828ede014665b2f54d231f7524872025-01-24T13:35:29ZengMDPI AGInorganics2304-67402025-01-011311310.3390/inorganics13010013Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead SubstitutionMarina I. Ustinova0Gennadii V. Shilov1Pavel A. Troshin2Sergey M. Aldoshin3Lyubov A. Frolova4Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences, 1 prosp. Semenova, 142432 Chernogolovka, RussiaFederal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences, 1 prosp. Semenova, 142432 Chernogolovka, RussiaFederal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences, 1 prosp. Semenova, 142432 Chernogolovka, RussiaFederal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences, 1 prosp. Semenova, 142432 Chernogolovka, RussiaFederal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences, 1 prosp. Semenova, 142432 Chernogolovka, RussiaA crucial problem of the photoinduced degradation of perovskite semiconductors based on complex lead halides has been addressed here by suppressing PbI<sub>2</sub> photolysis to metallic lead. The systematic screening of >30 modifying cations introduced as substituents for 5% of Pb<sup>2+</sup> in the PbI<sub>2</sub> composition has revealed their tremendous effects on the rate of material degradation under light exposure. Thus, the most successful stabilizing cations could maintain a high absorbance of the Pb<sub>0.95</sub>M<sub>0.1/n</sub>I<sub>2</sub> films and block Pb<sup>0</sup> formation after 400 h of continuous illumination, when the non-modified PbI<sub>2</sub> films completely decomposed to Pb<sup>0</sup> and I<sub>2</sub>. The obtained results present a promising solution for the problem of metallic lead formation in the active layer of perovskite solar cells during their operation, which can pave the way for the development of a new generation of highly efficient and stable perovskite photovoltaics.https://www.mdpi.com/2304-6740/13/1/13perovskite solar cellsbinary lead iodidephotostabilitypartial lead substitutioncomplex lead halides |
| spellingShingle | Marina I. Ustinova Gennadii V. Shilov Pavel A. Troshin Sergey M. Aldoshin Lyubov A. Frolova Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead Substitution Inorganics perovskite solar cells binary lead iodide photostability partial lead substitution complex lead halides |
| title | Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead Substitution |
| title_full | Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead Substitution |
| title_fullStr | Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead Substitution |
| title_full_unstemmed | Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead Substitution |
| title_short | Getting to the Heart of the Matter: Control over the Photolysis of PbI<sub>2</sub> Through Partial Lead Substitution |
| title_sort | getting to the heart of the matter control over the photolysis of pbi sub 2 sub through partial lead substitution |
| topic | perovskite solar cells binary lead iodide photostability partial lead substitution complex lead halides |
| url | https://www.mdpi.com/2304-6740/13/1/13 |
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