Ordered ZnO nanorods-based heterojunction light-emitting diodes with graphene current spreading layer
Ordered ZnO nanorods-based heterojunction light-emitting diodes with graphene current spreading layer
复制标题
具有石墨烯电流扩散层的有序ZnO纳米棒基异质结发光二极管
DOI:
10.1063/1.4753926
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发表时间:
2012-09
影响因子:
4
通讯作者:
Gao, H. L.
中科院分区:
文献类型:
--
作者:
Zhang, S. G.;Zhang, X. W.;Si, F. T.;Dong, J. J.;Wang, J. X.;Liu, X.;Yin, Z. G.;Gao, H. L.
Ordered ZnO nanorods-based heterojunction light-emitting diodes (LEDs) have been fabricated by adopting few-layer graphene as a current spreading layer. The strong emission at low currents infers the high interfacial quality between GaN and ordered ZnO nanorods, and the current spreading effect resulting from graphene. The improved electroluminescence performance was achieved compared to the ZnO nanorods-based LED with a conventional indium-tin-oxide electrode, which can be attributed to the stable, reliable, and low resistance ohmic-contacts between graphene and ZnO nanorods, as well as the high transmittance of graphene. These results demonstrate feasibility of using graphene as electrodes for high-efficiency ZnO nanorods-based LEDs.
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