A Flexible Circularly Polarized Luminescence Switching Device Based on Proton‐Coupled Electron Transfer. Issue 26 (21st July 2022)

• Record Type: Journal Article
• Authors: Yang, Guojian; Yao, Zhiqiang; Yang, Xuefeng; Xie, Yigui; Duan, Pengfei; Zhang, Yu‐Mo; Zhang, Sean Xiao‐An
• Is Part Of: Advanced science. Volume 9:Issue 26(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-07-21
• Subjects: bistability -- circularly polarized luminescences -- electrically switchable devices -- flexible devices; Science -- Periodicals; 505
• DOI: 10.1002/advs.202202636
• Languages: English
• ISSNs: 2198-3844

Abstract

Abstract: Flexible circularly polarized luminescence (CPL) switching devices have been long‐awaited due to their promising potential application in wearable optoelectronic devices. However, on account of the few materials and complicated design of manufacturing systems, how to fabricate a flexible electric‐field‐driven CPL‐switching device is still a serious challenge. Herein, a flexible device with multiple optical switching properties (CPL, circular dichroism (CD), fluorescence, color) is designed and prepared efficiently based on proton‐coupled electron transfer (PCET) mechanism by optimizing the chiral structure of switching molecule. More importantly, this device can maintain the switching performance even after 300 bending‐unbending cycles. It has a remarkable comprehensive performance containing bistable property, low open voltage, and good cycling stability. Then, prototype devices with designed patterns have been fabricated, which opens a new application pattern of CPL‐switching materials. Abstract : A brand‐new optical switching system based on the PCET mechanism, which firstly integrates electrochemical information and multiple optical properties (CPL, CD, fluorescence and color) in a single photoelectric device efficiently.