Dong-Gue Kang Minwoo Rim Ryu Ki Hyun Kyung Min Lee Nicholas P. Godman Michael E. McConney Luciano De Sio Minwook Park Dae-Yoon Kim Kwang-Un Jeong 2024-01-19T13:02:24Z 2024-01-19T13:02:24Z 2022-01-10 2022-01 1616-301X https://pubs.kist.re.kr/handle/201004/115894 An anisotropic light emitting metallomesogen (PtM) consisting of a cyclometalated platinum(II)-terpyridine (Pt(II)-tpy) chromophore and a flexible dendron is newly synthesized as a thermal-induced and polarization-induced solid-state luminescence switching material. The self-assembled PtM is uniaxially aligned by mechanical shearing within the mesophase resulting in high optical anisotropy with chromophores. The shear-induced metastable PtM crystal exhibits emission change depending on the polarization direction and thermally triggered reversible emission quenching-recovery characteristic. In order to precisely control the optical feature of the PtM, the self-assembled supramolecular structure and thermal-sensitive photophysical properties are characterized. Based on the multiresponsive luminescence switching system of PtM, a multiplexed optical code is encrypted with a simple coating and its feasibility for optical anticounterfeiting applications is demonstrated. English John Wiley & Sons Ltd. Cyclometalated Pt(II)-Terpyridine Metallomesogen: What Is Visible or Invisible That Is a Matter of Molecular Packing and Orientation Article 10.1002/adfm.202106559 1 Advanced Functional Materials, v.32, no.4 Advanced Functional Materials 32 4 N scie scopus 000744101200040 2-s2.0-85123344481 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics PLATINUM(II) COMPLEXES NANOSTRUCTURES LUMINESCENCE PHOTOPOLYMERIZATION CRYSTALS aggregation-induced emission materials luminescence switching materials metallomesogens solid-state luminescence materials