[18a-M_101-1~9] 12.8 Specific theme: Photoelectric Properties, Device Fabrication and Structural Controls of Organic-Inorganic Hybrid Perovskites

12:15 PM - 12:30 PM JST(3:15 AM - 3:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-M_101-9] Photophysical Behavior of Perovskite Nanocrystal-Organic Charge-Transfer Complex Composite Films

〇Aoi Hamatsu¹, Shusei Hattori², Jun Matsui¹, Hinako Ebe¹ (1.Fac. Sci., Yamagata Univ., 2.Grad. Sch. Sci. Eng., Yamagata Univ.)

Keywords:

lead halide perovskite nanocrystal,organic charge transfer complex,organic-inorganic hybrid photofunctional materials

Organic charge-transfer (CT) complexes exhibit unique optoelectronic properties, such as ambipolar charge transport, photoconductivity, and ferroelectricity. However, the fabrication of CT complex crystals thin-film is challenging due to their strong tendency toward aggregation. In this study, we fabricated CT-PNC composite films in which CT complexes are uniformly dispersed within perovskite nanocrystals (PNCs) by exploiting the excellent film-forming ability of PNCs and π-π interactions with aromatic ligands. Optical characterization of the composite films revealed pronounced quenching and shortened photoluminescence lifetimes of the PNC emission, suggesting the occurrence of interfacial charge-transfer processes.