Controlling photoluminescence with silicon nanophotonics for better devices

Silicon nanowires have a great deal of potential in future high-performance electronic, sensing and energy devices. Red photoluminescence has been reported in silicon nanowires, but for many applications this hampers device performance. As Tsuyoshi Okuno from the University of Electro-Communications and his colleagues point out in a recent report, "Although the photoluminescence mechanism is often discussed, the condition of the appearance and the absence of the red photoluminescence is rarely reported."

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