Electroluminescence from single nanowires by tunnel injection: an experimental study

Zimmler, Mariano A. ; Bao, Jiming ; Shalish, Ilan ; Yi, Wei ; Yoon, Joonah ; Narayanamurti, Venkatesh ; Capasso, Federico (2007) Electroluminescence from single nanowires by tunnel injection: an experimental study Nanotechnology, 18 (23). 235205_1-235205_5. ISSN 0957-4484

[img]
Preview
PDF - Publisher Version
542kB

Official URL: http://iopscience.iop.org/0957-4484/18/23/235205

Related URL: http://dx.doi.org/10.1088/0957-4484/18/23/235205

Abstract

We present a hybrid light-emitting diode structure composed of an n-type gallium nitride nanowire on a p-type silicon substrate in which current is injected along the length of the nanowire. The device emits ultraviolet light under both bias polarities. Tunnel injection of holes from the p-type substrate (under forward bias) and from the metal (under reverse bias) through thin native oxide barriers consistently explains the observed electroluminescence behaviour. This work shows that the standard p-n junction model is generally not applicable to this kind of device structure.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics Publishing.
ID Code:30725
Deposited On:27 Dec 2010 08:23
Last Modified:17 May 2016 13:20

Repository Staff Only: item control page