通过混合发光电化学电池进行精确的颜色调谐。

Precise color tuning via hybrid light-emitting electrochemical cells.

机构信息

Department of Chemistry, Western Washington University, Bellingham, Washington 98225, USA.

出版信息

Nano Lett. 2011 Feb 9;11(2):461-5. doi: 10.1021/nl103164z. Epub 2010 Dec 20.

Abstract

We report color-tunable light-emitting devices employing CdSe/ZnS quantum dots (QDs) blended into a polymer light-emitting electrochemical cell (LEC) architecture. This novel structure circumvents the charge-tunneling barrier of QDs to achieve bright, uniform, and highly voltage-independent electroluminescence, with nearly all emission generated by the QDs. By blending varying ratios of two QD materials that emit at different wavelengths, we demonstrate precise color control in a single layer device structure.

摘要

我们报告了一种采用 CdSe/ZnS 量子点（QD）掺入聚合物发光电化学池（LEC）结构的可调色发光器件。这种新颖的结构绕过了 QD 的电荷隧道势垒，实现了明亮、均匀且高度电压独立的电致发光，几乎所有的发射都来自 QD。通过混合两种在不同波长下发射的 QD 材料的不同比例，我们在单层器件结构中实现了精确的颜色控制。