Near-unity angular anisotropy of circularly polarized luminescence from microspheres of monodispersed chiral conjugated polymers

Sota Nakayama; Hiroshi Yamagishi; Osamu Oki; Soh Kushida; Junhui Chen; Junpei Kuwabara; Takaki Kanbara; Wijak Yospanya; Reiko Oda; Yohei Yamamoto

doi:10.1039/D4CC01428F

Near-unity angular anisotropy of circularly polarized luminescence from microspheres of monodispersed chiral conjugated polymers†

Sota Nakayama,^a Hiroshi Yamagishi,

*^a Osamu Oki,^a Soh Kushida,^a Junhui Chen,^a Junpei Kuwabara,

^a Takaki Kanbara,

^a Wijak Yospanya,

^b Reiko Oda

^cb and Yohei Yamamoto

*^a

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* Corresponding authors

^a Department of Materials Science, Institute of Pure and Applied Sciences, and Tsukuba Research Center for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
E-mail: yamagishi.hiroshi.ff@u.tsukuba.ac.jp, yamamoto@ims.tsukuba.ac.jp

^b Advanced Institute for Materials Research (AIMR), Tohoku University, 2-1-1 Katahira, Aoba, Sendai, Miyagi, Japan

^c University of Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, F-33600 Pessac, France

Abstract

A microsphere, assembled from a chiral π-conjugated polymer with narrow polydispersity, features a well-organized twisted-bipolar structure and exhibits highly biased circularly polarized luminescence (CPL). The CPL emitted toward the equatorial direction is 61-fold greater than that emitted along the zenith direction, which is the highest anisotropy among existing microscopic CPL emitters.

This article is part of the themed collection: CC 60th Anniversary Authors Collection

Chemical Communications

Near-unity angular anisotropy of circularly polarized luminescence from microspheres of monodispersed chiral conjugated polymers†

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Near-unity angular anisotropy of circularly polarized luminescence from microspheres of monodispersed chiral conjugated polymers

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