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Despite living in a three-dimensional world, almost all information in our society is conveyed in a two-dimensional format. Here, the authors provide a technique for the generation of spatially accurate and high-resolution three-dimensional images using fluorescent photoswitch chemistry.
The fate of newly created excited states in conjugated materials is not fully understood, with unanswered questions regarding where exactly excitons form and their subsequent behaviour. Now, single-molecule spectroscopy studies of large conjugated molecular wheels reveal that excitons localize at random positions around the wheel rims.