2018
DOI: 10.1002/ppsc.201800289
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Dual Management of Electrons and Photons to Get High‐Performance Light Emitting Devices Based on Si Nanowires and Si Quantum Dots with Al2O3‐Ag Hybrid Nanostructures

Abstract: Silicon quantum dot (Si QD)‐based light emitting devices are fabricated on Si nanowire (Si NW) arrays. Through inserting Al2O3‐Ag hybrid nanostructures (Al2O3‐Ag HNs) between Si NWs and Si QDs, both photoluminescence (PL) and electroluminescence (EL) are remarkably enhanced compared to the control sample. The PL enhancement can be mainly attributed to passivation effect of Al2O3 to p‐type Si NWs and enlarged absorption cross‐section due to the local surface plasmon resonance effect of Ag nanoparticles. The EL … Show more

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