期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 49, 页码 42637-42646出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b15100
关键词
light-emitting hybrid devices; quantum dots; light-emitting electrochemical cells; white light emitters; iTMC
资金
- University of Duisburg-Essen
- OSRAM GmbH
The simple device architecture as well as the solution-based processing makes light-emitting electrochemical cells (LECs) a promising device concept for large-area flexible lighting solutions. The lack of deep-blue emitters, which are, at the same time, efficient, bright, and long-term stable, complementary to the wide variety of yellow-orange emitting LECs, hampers the creation of white LECs. We present a hybrid device concept for the realization of white light emission by combining blue colloidal quantum dots (QDs) and an Ir-based ionic transition-metal complex (iTMC) LEC in a new type of white QD-LEC hybrid device (QLEC). By careful arrangement of the active layers, we yield light emission from both the blue QDs and the yellow iTMC emitter already at voltages below 3 V. The QLEC devices show homogeneous white light emission with high color rendering index (up to 80), luminance levels above 850 cd m(-2), and a maximum external quantum efficiency greater than 0.2%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据