Trace MA + Accelerates the Degradation of Perovskite Solar Cells at Elevated Temperatures
Fuente:
Wiley Open Access
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , , |
|---|---|
| Format: | Artículo Open Access |
| Publié: |
Wiley
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1867010727801257984 |
|---|---|
| author | Jiazheng Zhou Hongsen Cui Kaifeng Jing Hengyu Zhang Zhicheng Guan Yingjie Hu Lian Wang Peng Tao Zhenyi Ni Guojia Fang Gang Li Guang Yang |
| author_facet | Jiazheng Zhou Hongsen Cui Kaifeng Jing Hengyu Zhang Zhicheng Guan Yingjie Hu Lian Wang Peng Tao Zhenyi Ni Guojia Fang Gang Li Guang Yang Jiazheng Zhou Hongsen Cui Kaifeng Jing Hengyu Zhang Zhicheng Guan Yingjie Hu Lian Wang Peng Tao Zhenyi Ni Guojia Fang Gang Li Guang Yang |
| collection | Wiley Open Access |
| contents | Trace MA + Accelerates the Degradation of Perovskite Solar Cells at Elevated Temperatures Jiazheng Zhou Hongsen Cui Kaifeng Jing Hengyu Zhang Zhicheng Guan Yingjie Hu Lian Wang Peng Tao Zhenyi Ni Guojia Fang Gang Li Guang Yang Information & Functional Materials ABSTRACT Methylammonium (MA + ) is the most widely adopted A‐site cation for high‐efficiency perovskite solar cells. Here, we demonstrate that although MA + enhances initial power‐conversion efficiency (PCE), it also creates a photo‐instability channel and speeds up the device degradation at elevated temperature. By systematically comparing MA‐containing triple‐cation (Cs 0.05 MA 0.05 FA 0.9 PbI 3 ) and MA‐free double‐cation (Cs 0.05 FA 0.95 PbI 3 ) devices and thin films, we find that removing MA + more than doubles the operational lifetime under 1‐sun illumination at 85°C. Comprehensive characterization reveals that MA + deprotonation leads to the formation of ionic defects that initiate perovskite decomposition. These findings suggest that the removal of MA + is crucial for achieving intrinsically stable perovskite photovoltaics, particularly under conditions of elevated temperature. 10.1002/ifm2.70013 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/ifm2.70013 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_ifm2_70013 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Trace MA + Accelerates the Degradation of Perovskite Solar Cells at Elevated Temperatures Jiazheng Zhou Hongsen Cui Kaifeng Jing Hengyu Zhang Zhicheng Guan Yingjie Hu Lian Wang Peng Tao Zhenyi Ni Guojia Fang Gang Li Guang Yang Information & Functional Materials Trace MA + Accelerates the Degradation of Perovskite Solar Cells at Elevated Temperatures Jiazheng Zhou Hongsen Cui Kaifeng Jing Hengyu Zhang Zhicheng Guan Yingjie Hu Lian Wang Peng Tao Zhenyi Ni Guojia Fang Gang Li Guang Yang Information & Functional Materials ABSTRACT Methylammonium (MA + ) is the most widely adopted A‐site cation for high‐efficiency perovskite solar cells. Here, we demonstrate that although MA + enhances initial power‐conversion efficiency (PCE), it also creates a photo‐instability channel and speeds up the device degradation at elevated temperature. By systematically comparing MA‐containing triple‐cation (Cs 0.05 MA 0.05 FA 0.9 PbI 3 ) and MA‐free double‐cation (Cs 0.05 FA 0.95 PbI 3 ) devices and thin films, we find that removing MA + more than doubles the operational lifetime under 1‐sun illumination at 85°C. Comprehensive characterization reveals that MA + deprotonation leads to the formation of ionic defects that initiate perovskite decomposition. These findings suggest that the removal of MA + is crucial for achieving intrinsically stable perovskite photovoltaics, particularly under conditions of elevated temperature. 10.1002/ifm2.70013 http://creativecommons.org/licenses/by/4.0/ |
| title | Trace MA + Accelerates the Degradation of Perovskite Solar Cells at Elevated Temperatures |
| topic | Information & Functional Materials |
| url | https://onlinelibrary.wiley.com/doi/10.1002/ifm2.70013 |