Plastics are arguably the most ubiquitous structural materials mankind invented, while semiconducting polymers, one kind of special plastics, present their unique optical and electronic characteristics and have attracted wide interest from biomedical to electronic applications. Mei’s research group is dedicated to the advancement of semiconducting polymers from three frontiers, namely organic electronics, electrochemical (electrochromic) devices, as well as photoacoustic imaging and neurostimulation. In this talk, we focus on our latest development of designing semiconducting polymer blends for organic electronics. We will discuss how we came up with the concept of complementary semiconducting polymer blends that render melt-processability to the solvent-free fabrication of thin film organic electronics, a clear departure from widely practiced solution processing which often involves toxic and environmentally-harmful organic solvents. We will also highlight the marriage of semiconducting polymers and insulating plastics that brings stable charge transport across a wide temperature range from room temperature up to 220°C in thin-film transistors. This discovery lifts the limitation by the fact that most electronics will break down at high temperatures and could be a way to change that.<br/><br/>

Semiconducting polymer blends: Bringing the best of both worlds for organic electronics

2019 Fall National Meeting

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