Abstract
This contribution describes the use of layer-by-layer self-limiting siloxane chemisorption processes to self-assemble structurally regular multilayer organic LED (OLED) devices. Topics discussed include: 1) the synthesis of silyl-functionalized precursor molecules for hole transport layer (HTL), emissive layer (EML), and electron transport layer (ETL) self-assembly, 2) the use of layer-by-layer self-assembly for ITO electrode modification/passivation/hole-electron balancing in a vapor-deposited device, 3) the microstructure/chemical characterization of HTL self-assembly using a prototype triarylamine precursor, 4) fabrication and properties of a hybrid self-assembled + vapor deposited two-layer LED, 4) fabrication and properties of a fully self-assembled two-layer OLED.
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Acknowledgement
This research was supported by the ONR through the Center for Advanced Multifunctional Nonlinear Optical Polymers and Molecular Assemblies (CAMP) MURI (N00014-95-1-1319) and by the NSF-MRSEC program through the Northwestern Materials Research Center (DMR-9632472).
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Li, W., Malinsky, J.E., Chou, H. et al. Molecular Self-Assembly Routes to Optically Functional Thin Films: Electroluminescent Multilayer Structures. MRS Online Proceedings Library 488, 385–393 (1997). https://doi.org/10.1557/PROC-488-385
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DOI: https://doi.org/10.1557/PROC-488-385