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Amplification of Dissymmetry for Circularly Polarized Photodetection by Cooperative Supramolecular Polymerization |
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| Authors: | Yuncong Xue Can Zhang Tongjin Lv Prof Dr Longzhen Qiu Prof Dr Feng Wang |
| Institution: | 1. CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026 P. R. China
These authors contributed equally to this work.;2. National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei, Anhui, 230009 P. R. China These authors contributed equally to this work.;3. CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026 P. R. China;4. National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Hefei University of Technology, Hefei, Anhui, 230009 P. R. China |
| Abstract: | Circularly polarized photodetectors require chiral light absorption materials with high sensing efficiency and low costs. Here readily accessible point chirality has been introduced to dicyanostilbenes as the chiral source, facilitating remote chirality transfer to the π-aromatic core by cooperative supramolecular polymerization. The single-handed supramolecular polymers display powerful circularly polarized photodetection capability with a dissymmetry factor value as high as 0.83, superior to those of π-conjugated small molecules and oligomers. Strong chiral amplification occurs between the enantiopure sergeants and the achiral soldiers. The resulting supramolecular copolymers exhibit comparable photodetection efficiency to those of the homopolymeric ones, with a 90 % decrease in the enantiopure compound consumption. Therefore, cooperative supramolecular polymerization provides an effective yet economical avenue toward circularly polarized photodetection applications. |
| Keywords: | Chiral Amplification Circularly Polarized Photodetectors Cooperativity Hydrogen Bonds Supramolecular Polymers |