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

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-M_101-1] Photocurrent and Spin Properties in One-Dimensional Helical Perovskite Thin Films

〇(M2)Hikari Suzuki¹, Takenao Fujii², Akinori Kogure², Ayumi Ishii¹ (1.Waseda Univ., 2.Shimadzu Corp.)

Keywords:

Circularly polarized light detection,One-dimensional helical perovskite,Scanning probe microscope

In this study, we aim to clarify the photoelectromagnetic properties induced by the formation of one-dimensional (1D) helical structures and to further enhance their functionalities. In our previous work, we successfully demonstrated the direct detection of circularly polarized light in the ultraviolet (UV) region using thin-film devices of 1D helical perovskites composed of organic chiral molecules and lead halides. In this presentation, we report the results of the photocurrent and spin-related properties of the 1D helical structure, conducted using a scanning probe microscope (SPM). Under UV light irradiation, the photocurrent of the 1D helical perovskite thin films was found to increase. Furthermore, current and magnetic force images were measured to evaluate the spin-polarized state, revealing chirality-dependent behavior. These results suggest a significant contribution of the spin-polarized state formed at the surface of the 1D helical perovskite to the observed photoresponse.