用于红外电致发光的混合硅纳米晶-有机发光器件。

Hybrid silicon nanocrystal-organic light-emitting devices for infrared electroluminescence.

机构信息

Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, USA.

出版信息

Nano Lett. 2010 Apr 14;10(4):1154-7. doi: 10.1021/nl903212y.

PMID:20337448

Abstract

We demonstrate hybrid inorganic-organic light-emitting devices with peak electroluminescence (EL) at a wavelength of 868 nm using silicon nanocrystals (SiNCs). An external quantum efficiency of 0.6% is realized in the forward-emitted direction, with emission originating primarily from the SiNCs. Microscopic characterization indicates that complete coverage of the SiNCs on the conjugated polymer hole-transporting layer is required to observe efficient EL.

摘要

我们展示了使用硅纳米晶体 (SiNCs) 的混合无机-有机发光器件，其峰值电致发光 (EL) 在 868nm 波长处。在正向发射方向上实现了 0.6%的外量子效率，发射主要源自 SiNCs。微观特性表明，需要在共轭聚合物空穴传输层上完全覆盖 SiNCs，才能观察到有效的 EL。