Publications by authors named "Dion Tjhe"
Article Synopsis
- * The study uses various methods to analyze how adding tie-chains between crystalline domains can enhance electrical conductivity, achieving an impressive 4810 S cm without sacrificing the Seebeck coefficient or significantly increasing thermal conductivity.
- * The successful approach provides a pathway for improving thermoelectric performance in a variety of semicrystalline conjugated polymers, addressing traditional trade-offs in optimizing these materials.
Doped organic semiconductors are critical to emerging device applications, including thermoelectrics, bioelectronics, and neuromorphic computing devices. It is commonly assumed that low conductivities in these materials result primarily from charge trapping by the Coulomb potentials of the dopant counterions. Here, we present a combined experimental and theoretical study rebutting this belief.
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- * A breakthrough method involving ion-exchange has been developed, allowing for effective doping while separating redox and charge compensation processes, showing impressive conductivities over 1000 S cm and ion exchange efficiencies above 99% in a specific polymer system.
- * Key factors contributing to the high performance of this doping method include the choice of acetonitrile as a solvent, which reduces undesirable effects, although the stability of highly doped materials is still limited by their inherent weaknesses at high redox potentials.