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

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[9p-N305-11] Crystal Morphology Engineering of Blue-emitting Perovskite Nanocrystals toward Highly Ordered Face-down Orientation

〇(D)Naoaki Oshita¹, Mao Goto¹, Satoshi Asakura², Motofumi Kashiwagi³, Akito Masuhara^1,4 (1.Grad. Sch. of Sci. and Eng., Yamagata Univ., 2.Ise Chem. Corp., 3.ZEON Corp., 4.FROM, Yamagata Univ.)

Keywords:

Perovskite nanocrystals,Orientation,LED

Blue-emitting perovskite nanocrystals (PeNCs) with a plate-like morphology possess anisotropic optical properties and exhibit polarized transition dipole moments, making them attractive for optoelectronic devices. While prior studies have highlighted the importance of their orientation, particularly face-down versus edge-up alignment, the influence of crystal morphology, especially lateral size, remains insufficiently understood. In this study, we demonstrate that PeNCs with larger lateral sizes exhibit a pronounced face-down orientation and enhanced optical properties, leading to improved light-emitting diode (LED) performance. These results provide valuable insights into the design of high-efficiency blue LEDs based on PeNCs.