Abstract
Silicon-based single ion transport light emitting electrochemical cell (LEC) with an Al/Silicon/MEH-PPV:PUI/Au structure has been fabricated and characterized. Under forward bias, light emission through the semi-transparent Au electrode can be observed with naked eyes. Spectral analyses suggest that the π π optical transitions in MEH-PPV and the radiative transitions in light-emitting centers at the MEH-PPV/Si interface are responsible for the electroluminescence (EL) peaks. This kind of devices will be more useful in Silicon-based planar displaying devices and Silicon-based opto-electronic integration.
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