Electroluminescence from porous silicon due to electron injection from solution

Abstract

We report on the electroluminescence from p-type porous silicon due to minority carrier injection from an electrolyte solution. The MV radical cation formed in the reduction of divalent methylviologen is able to inject electrons into the conduction band of crystalline and porous silicon. The electrochemistry of this redox process at silicon electrodes is… (More)

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