Synthesis, characterization, and optoelectronic properties of phenothiazine-based organic co-poly-ynes
- 9 June 2021
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 45 (33), 15082-15095
- https://doi.org/10.1039/d1nj00925g
Abstract
We present the synthesis and characterization of seven new organic co-poly-ynes P1–P7 incorporating the phenothiazine (PTZ) motif and evaluate their optoelectronic properties and performance in polymer light-emitting diodes and polymer solar cells (PLEDs/PSCs). The co-poly-ynes were obtained in moderate to high yields via Sonogashira coupling reactions and characterized using analytical, spectroscopic and electrochemical techniques and complementary quantum-chemical modelling. The materials show strong optical absorption in the visible region of the spectrum and most also show strong emission with quantum yields in the range of 13–41% relative to rhodamine 6G (R6G). PLED devices based on the co-poly-ynes were prepared and the most promising was measured to have a brightness of up to 1.10 × 104 cd m−2. PSCs based on donor materials incorporating some of the polymers were prepared and demonstrated power conversion efficiencies of up to 0.24%.Funding Information
- Ministry of Education – Kingdom of Saudi Arabi (RDO-2001)
- Hong Kong Polytechnic University
- State Key Laboratory of Polymer Physics and Chemistry
- Chinese Academy of Sciences
- Engineering and Physical Sciences Research Council (EP/K004956/1)
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