Royal Society of Chemistry, Journal of Materials Chemistry A: materials for energy and sustainability, 42(1), p. 13268
DOI: 10.1039/c3ta12669b
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Aligned carbon nanotube–oriented poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) composites show an unexpectedly high catalytic activity which greatly exceeds the aligned individual components, the non-aligned composite counterpart, and even conventional platinum. When they are used as counter electrodes in dye-sensitized solar cells, the aligned composites also exhibit a highest energy conversion efficiency of 8.3%. The synergetic interaction between the nanotubes and polymers by aligned organization is the key to this new phenomenon.