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Silicon Nanostructures in Si-Based Light-Emithing Devicesa

  • Fereydoon Namavar (a1), R.F. Pinizzotto (a2), H. Yang (a2), N. Kalkhoran (a1) and P. Maruska (a1)...

Abstract

High resolution cross-sectional electron microscopy and electron diffraction of an np heterojunction porous Si device, capable of emitting light at visible wavelengths, clearly indicates the presence of Si nanostructures within the quantum size regime. These results indicate that the quantum confinement effect is at least partially responsible for photoluminescence at visible wavelengths.

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a

This work was supported in part by SDIO and monitored by the U.S. Army Research Office

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