Radiation-induced Instability of Organic-Inorganic Halide Perovskite Single Crystals
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915719433682944 |
|---|---|
| author | Chen, Ruitian Xie, Mingyu Lyu, Tianyi Pang, Jincong Zeng, Lewei Zhang, Jiahui Cheng, Changjun Feng, Renfei Niu, Guangda Tang, Jiang Zou, Yu |
| author_facet | Chen, Ruitian Xie, Mingyu Lyu, Tianyi Pang, Jincong Zeng, Lewei Zhang, Jiahui Cheng, Changjun Feng, Renfei Niu, Guangda Tang, Jiang Zou, Yu |
| contents | Organic-inorganic halide perovskites (OIHPs) are promising optoelectronic materials, but their instability under radiation environments restricts their durability and practical applications. Here we employ electron and synchrotron X-ray beams, individually, to investigate the radiation-induced instability of two types of OIHP single crystals (FAPbBr3 and MAPbBr3). Under the electron beam, we observe that 3-point star-style cracks grow on the surface of FAPbBr3, and bricklayer-style cracks are formed on the surface of MAPbBr3. Under the X-ray beam, a new composition without organic components appears in both FAPbBr3 and MAPbBr3. Such cracking and composition changes are attributed to the volatilization of organic components. We propose a volume-strain-based mechanism, in which the energy conversion results from the organic cation loss. Using nanoindentation, we reveal that beam radiations reduce the Youngs modulus and increase the hardness of both OIHPs. This study provides valuable insights into the structural and mechanical stabilities of OIHP single crystals in radiation environments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_06222 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Radiation-induced Instability of Organic-Inorganic Halide Perovskite Single Crystals Chen, Ruitian Xie, Mingyu Lyu, Tianyi Pang, Jincong Zeng, Lewei Zhang, Jiahui Cheng, Changjun Feng, Renfei Niu, Guangda Tang, Jiang Zou, Yu Materials Science Applied Physics Organic-inorganic halide perovskites (OIHPs) are promising optoelectronic materials, but their instability under radiation environments restricts their durability and practical applications. Here we employ electron and synchrotron X-ray beams, individually, to investigate the radiation-induced instability of two types of OIHP single crystals (FAPbBr3 and MAPbBr3). Under the electron beam, we observe that 3-point star-style cracks grow on the surface of FAPbBr3, and bricklayer-style cracks are formed on the surface of MAPbBr3. Under the X-ray beam, a new composition without organic components appears in both FAPbBr3 and MAPbBr3. Such cracking and composition changes are attributed to the volatilization of organic components. We propose a volume-strain-based mechanism, in which the energy conversion results from the organic cation loss. Using nanoindentation, we reveal that beam radiations reduce the Youngs modulus and increase the hardness of both OIHPs. This study provides valuable insights into the structural and mechanical stabilities of OIHP single crystals in radiation environments. |
| title | Radiation-induced Instability of Organic-Inorganic Halide Perovskite Single Crystals |
| topic | Materials Science Applied Physics |
| url | https://arxiv.org/abs/2504.06222 |