Enhancing thermoelectricity with guided impurity position control

https://phys.org/news/2023-05-thermoelectricity-impurity-position.html

"IDT-based polymer improved thermoelectric performance... impurity position controlling within acetal-functionalized IDT... synthesized Lewis-acid base... nitrosyl hexafluorophosphate directed dopant benzylic position... non-polar side chains... impedes charge transfer... improved doping efficiency, condensed π−π stacking, reduced grain size, low thermal conductivity 0.09 W m−1 K−1, 30X higher electronic conductivity, 6X thermoelectric performance... low thermal conductivity high electronic conductivity"

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