研究目的
To develop novel starburst-type triarylphosphine oxide trimers PO-1 and PO-2 as electron-transporting materials for solution-processed multilayer OLEDs.
研究成果
PO-1 and PO-2 are excellent electron-transporting materials for solution-processed multilayer OLEDs, with PO-1-based devices showing efficient sky-blue electroluminescence.
研究不足
The reason for the superior performance of PO-1 over PO-2 in OLEDs is not clear and requires further research.
1:Experimental Design and Method Selection:
Synthesis of PO-1 and PO-2 via Suzuki-Miyaura cross-coupling.
2:Sample Selection and Data Sources:
Use of precursors 2a and 2b for PO-1 and PO-2, respectively.
3:List of Experimental Equipment and Materials:
Spin-coating technique for film fabrication, AFM for surface observation, photoemission spectroscopy for HOMO determination.
4:Experimental Procedures and Operational Workflow:
Fabrication of double-EML OLEDs by solution processing.
5:Data Analysis Methods:
Determination of thermal properties, solubility, film forming ability, and device performance.
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