title: Highly sensitive INHIBIT and XOR logic gates based on ICT and ACQ emission switching of a porphyrin derivative.
abstract: Fluorescence-switch-based logic devices are very sensitive compared with most of the reported devices based on UV/Vis absorption systems. Herein, we demonstrate that a simple molecule, 5,10,15,20-tetra-(4-aminophenyl)porphyrin (TAPP), shows protonation-induced multiple emission switches through intramolecular charge transfer and/or aggregation-caused quenching. Highly sensitive INHIBIT and XOR logic gates can be achieved by combining the intermolecular assembly with the intramolecular photoswitching of diprotonated TAPP (TAPPH2(2+)). In addition, molecular simulations have been performed by DFT for a better understanding of the emission-switching processes.
authors.affiliation: Department of Chemistry, Zhejiang University, Hangzhou 310027 (P.R. China).
authors.forename: Xiao-Ling
authors.initials: XL
authors.lastname: Xu
authors.forename: Fu-Wen
authors.initials: FW
authors.lastname: Lin
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: Jian
authors.initials: J
authors.lastname: Wu
authors.forename: Zhi-Kang
authors.initials: ZK
authors.lastname: Xu
keywords: ACQ; ICT; emission switching; logic gates; porphyrins