A Multiple Chirality Switching Device for Spatial Light Modulators

• Published in: Angewandte Chemie International Edition Vol. 60; no. 4; pp. 2018 - 2023
• Main Authors: Yang, Guojian, Yu, Yang, Yang, Baige, Lu, Tong, Cai, Yiru, Yin, Hang, Zhang, Huiqi, Zhang, Ning‐Ning, Li, Li, Zhang, Yu‐Mo, Zhang, Sean Xiao‐An
• Format: Journal Article
• Language: English
• Published: WEINHEIM Wiley 25.01.2021; Wiley Subscription Services, Inc
• Edition: International ed. in English
• Subjects: Benzoquinone; Chemistry; Chemistry, Multidisciplinary; Chirality; chirality switching device; electrobase/acid; electrofluorochromism; Electron transfer; Fluorescence; Physical Sciences; Polymers; proton-coupled electron transfer; Science & Technology; Spatial light modulators; Switching; acid; CIRCULARLY-POLARIZED LUMINESCENCE; electrobase; proton-coupled electron transfer; RECOGNITION; chirality switching device; electrofluorochromism; LIQUID-CRYSTALS; SUPRAMOLECULAR GELS; INVERSION; spatial light modulators; electrobase/acid
• ISSN: 1433-7851; 1521-3773
• DOI: 10.1002/anie.202009916

A new and simple strategy towards electric‐field‐driven multiple chirality switching device has been designed and fabricated by combining a newly synthesized base‐responsive chiroptical polymer switch (R‐FLMA) and p‐benzoquinone (p‐BQ) via proton‐coupled electron transfer (PCET) mechanism. Clear and stable triple chirality states (silence, positive, negative) of this device in visible band can be regulated reversibly (>1000 cycles) by adjusting voltage programs. Furthermore, such chiral switching phenomena are also accompanied by apparent changes of color and fluorescence. More importantly, the potential application of this device for a spatial light modulator has also been demonstrated. A simple and new strategy towards electric‐field‐driven multiple chirality switching material and device for spatial light modulators has been developed successfully based on the proton‐coupled electron transfer (PCET) mechanism.