期刊
ISRAEL JOURNAL OF CHEMISTRY
卷 54, 期 7, 页码 867-884出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ijch.201400049
关键词
dendrimers; host-guest systems; host materials; phosphorescent organic light-emitting diodes; solution-processing
资金
- National Natural Science Foundation of China [21274016, 21374013, 21072026]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT-13R06]
- Program for DUT Innovative Research Team [DUT2013TB07]
- Fundamental Research Funds for the Central Universities [DUT13LK06, DUT12ZD211]
As a new technology for flat-panel displays and general lighting sources, solution-processed phosphorescent organic light-emitting diodes (PhOLEDs) unfurl a bright future, due to their merits of high quantum efficiency and easy fabrication. In recent years, great progress has been made in the device performance of solution-processed PhOLEDs, by developing both high-efficiency organometallic phosphors and novel solution-processable organic host materials. This review highlights recently developed organic host materials for triplet guest emitters in solution-processed PhOLEDs. The solution-processable host materials are classified into three types - small molecule, dendrimer, and polymer - according to their molecular architecture and molecular weight. The material design concept and the relationships between the molecular structure, material properties and device performance are the focus of this discussion. A future strategy for the development of high-performance solution-processed host materials is proposed.
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