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Magnetic and Electric Control of Circularly Polarized Emission through Tuning Chirality‐Generated Orbital Angular Momentum in Organic Helical Polymeric Nanofibers
Author(s) -
Wang Zhongxuan,
Gao Mingsheng,
Ren Shenqiang,
Hao Xiaotao,
Qin Wei
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201904857
Subject(s) - angular momentum , nanowire , chirality (physics) , circular polarization , orbital angular momentum multiplexing , materials science , electron , total angular momentum quantum number , condensed matter physics , orbital angular momentum of light , physics , nanotechnology , magnetic field , classical mechanics , quantum mechanics , chiral anomaly , fermion , nambu–jona lasinio model
Circularly polarized light emission promotes the development of smart photonic materials for advanced applications in chiral sensing and information storage. The orbital angular momentum is a unique property for organic chiral helical materials. In this work, a type of organic chiral polymeric nanowires is designed with strong chirality induced orbital angular momentum. Under the stimulus of an external magnetic field of 600 mT, circularly polarized emission from the chiral polymeric nanowire becomes more pronounced, where the g factor increases from 0.21 to 0.3. The observed phenomena mainly originate from the chirality‐dependent orbital angular momentum. Moreover, the orbital angular momentum in helical chiral nanowire structures can be suppressed by inhibiting electron transport in a helical way to diminish circularly polarized light emission at room temperature.