Although high-temperature operation (i.e., beyond 150°C) is of great interest for many electronics applications, achieving stable carrier mobilities for organic semiconductors at elevated temperatures is fundamentally challenging. We report a general strategy to make thermally stable high-temperature semiconducting polymer blends, composed of interpenetrating semicrystalline conjugated polymers and high glass-transition temperature insulating matrices. When properly engineered, such polymer blends display a temperature-insensitive charge transport behavior with hole mobility exceeding 2.0 cm2/V·s across a wide temperature range from room temperature up to 220°C in thin-film transistors.
CITATION STYLE
Gumyusenge, A., Tran, D. T., Luo, X., Pitch, G. M., Zhao, Y., Jenkins, K. A., … Mei, J. (2018). Semiconducting polymer blends that exhibit stable charge transport at high temperatures. Science, 362(6419), 1131–1134. https://doi.org/10.1126/science.aau0759
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