Abstract:PEPy‐COF, a new covalent organic framework (COF), exhibits a shiny blue fluorescence under UV and visible light. In article number 2300412, Amin Zadehnazari, Alireza Abbaspourrad, and colleagues built PEPy‐COF via a one‐pot condensation reaction using perylene and pyrene building blocks. PEPy‐COF features temperature‐dependent and solvent‐independent fluorescence and a semiconductor band gap making it an excellent candidate for temperature sensing devices.
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