Large Size CH₃NH₃PbI₃ Perovskite Microcrystalline with a Capsule-Free Cavity Box Structure Grown by Solvent Thermal Reaction

Abstract:

In the paper, a novel perovskite microcrystalline with a capsule-free cavity box structure was creatively prepared through solvent thermal reaction, and the composition and structure of CH₃NH₃PbI₃ perovskite microcrystalline were further characterized by scanning electron microscope (SEM) and energy dispersive X-ray (EDX) element mapping. The SEM results show that the grain size of the prepared CH₃NH₃PbI₃ perovskite microcrystalline is more than 100 μm. Furthermore, X-ray diffraction (XRD) analysis was used to characterize the material decomposition of perovskite microcrystals before and after 150 d of air aging. The XRD results indicate the prepared perovskite microcrystalline could be stably preserved in the air for 150 d without degradation. Our method provides technical guidance for further enriching the morphology of CH₃NH₃PbI₃ perovskite microcrystalline.

• Periodical: Materials Science Forum (Volume 1032)
• Pages: 51-56
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1032.51
• Online since: May 2021
• Authors: Fei Han, Xi Ping Xi*, Min Fan, Ling Ling Wang, Jin Ming Shi, Qin Liang Jiang, Bo Hong Chen, Heng Yan
• Keywords: CH₃NH₃PbI₃, Microcrystalline, Morphology, Stability

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