Volume 40 Issue 6
Jun 2026
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ZHANG Yinglong, JIA Shufan, DAI Ning, RAHMAN Saqib. Structure and Optical Properties of Inorganic Metal Halide Perovskite CsMnCl3 under High Pressure[J]. Chinese Journal of High Pressure Physics, 2026, 40(6): 061102. doi: 10.11858/gywlxb.20261014
Citation: ZHANG Yinglong, JIA Shufan, DAI Ning, RAHMAN Saqib. Structure and Optical Properties of Inorganic Metal Halide Perovskite CsMnCl3 under High Pressure[J]. Chinese Journal of High Pressure Physics, 2026, 40(6): 061102. doi: 10.11858/gywlxb.20261014

Structure and Optical Properties of Inorganic Metal Halide Perovskite CsMnCl3 under High Pressure

doi: 10.11858/gywlxb.20261014
  • Received Date: 22 Jan 2026
  • Rev Recd Date: 18 Mar 2026
  • Available Online: 21 Mar 2026
  • Issue Publish Date: 05 Jun 2026
  • Manganese-based metal halide perovskites have attracted significant attention due to their excellent photoelectric conversion efficiency and low-cost preparation advantages. Among them, cesium manganese chloride (CsMnCl3) has emerged as a promising candidate for spintronics and magnetic applications. Understanding the structure-property relationship of CsMnCl3, particularly its behavior under extreme conditions, is crucial for developing stable and efficient manganese-based perovskite materials and expanding their application scenarios. In this study, we systematically investigated the structural and optical properties of CsMnCl3 using diamond anvil cell (DAC) technology combined with in-situ high-pressure photoluminescence (PL) spectroscopy, absorption spectroscopy, Raman spectroscopy, X-ray diffraction (XRD), and first-principles calculations. At ambient pressure, CsMnCl3 crystallized in the R$ \overline{3} $m space group. During compression, we observed a structural transition at approximately 0.9 GPa, accompanied by a significant enhancement about 8.4 times in the photoluminescence intensity of CsMnCl3. Within the experimental pressure range from 0 to 32.2 GPa, the optical bandgap gradually decreases by about 28% with increasing pressure. Our findings provide theoretical support and experimental evidence for optimizing the high-pressure stability of manganese-based perovskite materials and expanding their functional applications under extreme conditions. Additionally, the fundamental understanding of metal halide perovskites under high pressure is enriched.

     

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