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Photostability of 2D Organic-Inorganic Hybrid Perovskites
We analyze the behavior of a series of newly synthesized (R-NH(3))(2)PbX(4) perovskites and, in particular, discuss the possible reasons which cause their degradation under UV illumination. Experimental results show that the degradation process depends a lot on their molecular components: not only t...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455925/ https://www.ncbi.nlm.nih.gov/pubmed/28788706 http://dx.doi.org/10.3390/ma7064789 |
Sumario: | We analyze the behavior of a series of newly synthesized (R-NH(3))(2)PbX(4) perovskites and, in particular, discuss the possible reasons which cause their degradation under UV illumination. Experimental results show that the degradation process depends a lot on their molecular components: not only the inorganic part, but also the chemical structure of the organic moieties play an important role in bleaching and photo-chemical reaction processes which tend to destroy perovskites luminescent framework. In addition, we find the spatial arrangement in crystal also influences the photostability course. Following these trends, we propose a plausible mechanism for the photodegradation of the films, and also introduced options for optimized stability. |
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