journal article·2008-01-18Open access

Tandem Organic Light‐Emitting Diode using Hexaazatriphenylene Hexacarbonitrile in the Intermediate Connector

L. S. Liao, W. K. Slusarek, T. K. Hatwar, M. L. Ricks, D. L. Comfort

Advanced Materials· Volume 20· Issue 2

Abstract

Tandem organic light-emitting diodes (OLEDs) with an organic–organic intermediate connector, consisting of an n-type doped electron-transporting layer (e.g. Li-doped Alq as shown in the figure) and nondoped hexaazatriphenylene hexacarbonitrile (HAT-CN), exhibit reduced drive voltage, improved voltage stability, and improved power efficiency. Moreover, this intermediate connector can be formed by thermal evaporation at temperatures lower than 300 °C, which simplifies the fabrication process of the OLEDs.
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Research context

OpenAlex topics: Organic Light-Emitting Diodes Research · Organic Electronics and Photovoltaics · Conducting polymers and applications

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