The 81st JSAP Autumn Meeting, 2020

Presentation information

Oral presentation

CS Code-sharing session » 【CS.2】 Code-sharing Session of 3.2 & 12.3

[8p-Z13-1~10] 【CS.2】 Code-sharing Session of 3.2 & 12.3

Tue. Sep 8, 2020 12:45 PM - 3:30 PM Z13

Hiroyuki Yoshida(Osaka Univ.), Suguru Sangu(Ricoh)

2:45 PM - 3:00 PM

[8p-Z13-8] Circularly Polarized Luminescence from Self-assembled Chiral Bipolar Microspheres

Osamu Oki1, Hiroshi Yamagishi1, Chidambar Kulkarni2, Stefan C. J. Meskers2, Bert Meijer2, Zhan-Hong Lin3, Jer-Shing Huang3, Yohei Yamamoto1 (1.Fac. Pure and Appl. Sci., Univ. Tsukuba, 2.Eindhoven University of Technology, 3.Leibniz-IPHT)

Keywords:circularly polarized luminescence, chiral, conjugated polymer

Here, we present chiral cholesteric microspheres exhibiting remarkable CPL properties. Self-assembly of π-conjugated polymers bearing a chiral side chains resulted in well-defined solid microspheres with a few micrometers in diameter. Transmission electron microscopy of a cross-section of the sliced microsphere revealed that the polymers are anisotropically organized with helically stacked structures. The chiral microspheres in suspension exhibited CPL with glumvalues of 0.2 due to circular selective scattering by the helically ordered stacks of the polymers. Finally, we discuss about CPL behavior of individual microspheres by micro scale photoluminescence measurement of a single chiral microsphere.