Presentation Information

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11p-B12-3]Elucidation of correlation between polariton lasing behavior and aggregation structures in polyfluorene

〇(M2)Yutaka Arakawa¹, Abe Keita², Hirai Kenji², Uji-i Hiroshi², Ito Syoji¹, Kuramochi Hikaru¹, Sotome Hikaru¹ (1.The Univ. of Osaka, 2.RIES)

Keywords:

polariton laser,cavity strong coupling,condensed phase

To clarify how chromophore orientation and aggregation structure affect the polariton lasing characteristics of fluorene polymers under strong coupling, we fabricated cavity samples using two types of fluorene polymers with different aggregation structures and evaluated their properties. Comparison of the excitation fluence dependence of angle-resolved photoluminescence spectra revealed a pronounced difference in the lasing threshold. Furthermore, Raman spectroscopy measurements indicated that the molecular aggregation structure influences the polariton lasing behavior.

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