[10a-A24-1~11] 12.8 Specific theme: Photoelectric Properties, Structural Controls and Device of Perovskites Materials

9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)

[10a-A24-2] Room-Temperature Phosphorescence of Pyrene Enabled by a Perovskite Triplet-Sensitizing Matrix with an Aliphatic Spacer

〇Hinako Ebe¹, Mai Anbe¹, Aoi Hamatsu², Jun Matsui¹ (1.Fac. Sci.,Yamagata Univ., 2.Grad. Sch. Sci. Eng., Yamagata Univ.)

Keywords:

perovskite nanocrystals,triplet sensitization system,Room-temperature phosphorescence of pyrene

Efficient triplet energy transfer (TET) in lead halide perovskite nanocrystal (PNC)-based triplet sensitization systems requires the formation of high-density PNC–molecule interfaces. In this study, composite films consisting of pyrene (Py) and low-dimensional PNCs incorporating butylammonium (BA) as a linear organic spacer were fabricated, and their triplet sensitization properties were investigated. X-ray diffraction measurements revealed that the formation of Py–PNC composite interfaces could be controlled by the BA concentration. Furthermore, pyrene room-temperature phosphorescence (RTP) was observed upon the formation of the composite interfaces. These results demonstrate that the formation of Py–PNC composite interfaces governs both TET and RTP generation.