[9p-N305-1~15] 12.8 Specific theme: Photoelectric Properties, Device Fabrication and Structural Controls of Organic-Inorganic Hybrid Perovskites

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

[9p-N305-5] Perovskite Triplet Sensitization System for Room-Temperature Phosphorescence of Pyrene

〇Hinako Ebe¹, Shusei Hattori², Jun Matsui¹ (1.Yamagata Univ. Sci. Fac., 2.Yamagata Univ.)

Keywords:

Perovskite nanocrystals,Room-temperature phosphorescence,Triplet sensitization

Room-temperature phosphorescence (RTP) from organic molecules has been considered difficult to achieve due to their low triplet formation efficiency and significant non-radiative deactivation. In this study, we report the successful realization of RTP from pyrene (Py) by employing lead halide perovskite nanocrystals (PNCs) as a triplet sensitization matrix. The PNCs exhibit excellent triplet sensitization capability and film-forming properties, enabling uniform dispersion of Py and the formation of abundant physical interfaces. As a result, efficient triplet energy transfer from PNCs to Py and suppression of non-radiative deactivation were achieved, leading to the observation of Py phosphorescence at room temperature.