Visible-light-driven bistable photoswitching with enhanced solid state NIR-fluorescence for multi-level optical storage

Abstract

Photoswitchable near-infrared (NIR) fluorescence molecules have the characteristic of reversible NIR luminescence modulation, showing broad application prospects in advanced photonic applications such as optical storage and super-resolution fluorescence imaging. Herein,...

Recent advances in small-molecule fluorescent photoswitches with photochromism in diverse states

“…Optical switches based on near-infrared fluorescence molecules also have broad prospects in the application of optical storage and super-resolution fluorescence imaging. Hong et al 138 constructed a near-infrared fluorescent bistable molecular switch TDI-4(DTE-TPE) through covalent coupling. Both its open and closed forms show great bistability and aging resistance.…”

Perylene-diimide for organic solar cells: current scenario and prospects in molecular geometric, functionalization, and optoelectronic properties

“…109–111 They are also easy to synthesize, which makes them a good choice for beginners. 112–114 Huge-scale synthesis and purification of these compounds are also not prohibitively expensive when done on a large scale. 115–117 In fullerene-free OSC research, we recently made functionalized PDI electron acceptors that dissolve well in organic solvents and high-performance solar cells with V OC s. 118–122 Electron donors in blending films can be substituted with electron donors in PDI s, which were synthesised by Xu et al in 2017.…”

Recent progress on the construction and application of dithienylethene‐based photochromic AIEgens

“…In 2023, Li and coworkers 54 reported a UV‐based photochromic AIEgen with four AIE groups (Figure 20). They introduced four TPE‐modified DTE groups at the terrylene diimide (TDI) bay‐positions to prepare a novel visible‐light‐driving solid‐state high‐brightness NIR fluorescent diarylethene TDI‐4(DTE‐TPE).…”