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Rule-Breaking Perovskites

A material from the perovskite family of semiconductors emits light much more efficiently than expected. The explanation for this anomalous behaviour could lead to improvements in light-emitting technology. When a semiconductor absorbs light, a particle-like entity called an exciton can be produced. Excitons comprise an electron and a hole (the absence of an electron), and

Organic Lasers One Step Closer to Reality

New research could make lasers emitting a wide range of colors more accessible and open new applications from communications and sensing to displays. Researchers at Kyushu University”s Center for Organic Photonics and Electronics Research (OPERA) reported an optically pumped organic thin-film laser that can continuously emit light for 30 ms, which is more than 100