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説明:

Hexagonal single crystals of perylene were grown on a substrate by solution evaporation. Fluorescence microscopy images showed patterned heterogeneous domains with different fluorescence colors. Polarized ultra-low-frequency Raman microscopy revealed that the crystal structure is homogeneous throughout the entire crystal despite the domains observed in the fluorescence images. We concluded that hexagonal crystals were formed by the further growth of the rhombic beta-crystal, which is one of the two polymorphs of the perylene crystal. This mechanism explains the formation of domains with different crystal qualities, resulting in different fluorescence colors.

権利情報:

• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

キーワード: Polymorphism, Perylene crystal, Fluorescence microscopy, Ultralow-frequency Raman microscopy, Crystal quality

刊行年月日: 2024-03-24

出版者: Elsevier BV

掲載誌:

• Chemical Physics Letters (ISSN: 00092614) vol. 843 141232

研究助成金:

• Japan Society for the Promotion of Science 21  K05045

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4843

公開URL: https://doi.org/10.1016/j.cplett.2024.141232

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更新時刻: 2024-10-11 16:19:29 +0900

MDRでの公開時刻: 2026-03-24 08:25:11 +0900