1. Highly Photoluminescent Nonconjugated Polymers for Single-Layer Light Emitting Diodes
- Author
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Benjaporn Narupai, Alaina J. McGrath, Chien-Yang Chiu, Anatoliy N. Sokolov, Craig J. Hawker, Sukrit Mukhopadhyay, Raghida Bou Zerdan, Zachariah A. Page, Zachary M. Hudson, Bryan E. Barton, John W. Kramer, and David S. Laitar
- Subjects
Materials science ,Photoluminescence ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,Methacrylate ,01 natural sciences ,law.invention ,law ,OLED ,Iridium ,Electrical and Electronic Engineering ,chemistry.chemical_classification ,Dopant ,business.industry ,Polymer ,021001 nanoscience & nanotechnology ,Atomic and Molecular Physics, and Optics ,0104 chemical sciences ,Electronic, Optical and Magnetic Materials ,chemistry ,Optoelectronics ,0210 nano-technology ,business ,Phosphorescence ,Biotechnology ,Light-emitting diode - Abstract
The design, synthesis, and characterization of solution-processable polymers for organic light emitting diode (OLED) applications are presented. Theoretical calculations were employed to identify a carbazole-pyrimidine based building block as an optimized host material for the emissive layer of an idealized OLED stack. Efficient, free radical homopolymerization and copolymerization with a novel methacrylate-based heteroleptic iridium(III) complex leads to a library of nonconjugated polymers with pendant semiconductors. Optoelectronic characterization reveals impressive photoluminescence quantum yield (PLQY) values exceeding 80% and single-layer OLEDs show optimal performance for copolymers containing 6 mol % of iridium comonomer dopant.
- Published
- 2017