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|Title:||Low band gap thiophene-perylene diimide systems with tunable charge transport properties|
Della Pelle, A.M.
|Citation:||Balaji, G., Kale, T.S., Keerthi, A., Della Pelle, A.M., Thayumanavan, S., Valiyaveettil, S. (2011-01-07). Low band gap thiophene-perylene diimide systems with tunable charge transport properties. Organic Letters 13 (1) : 18-21. ScholarBank@NUS Repository. https://doi.org/10.1021/ol1023486|
|Abstract:||Perylenediimide-pentathiophene systems with varied architecture of thiophene units were synthesized. The photophysical, electrochemical, and charge transport behavior of the synthesized compounds were studied. Both molecules showed a low band gap of ∼1.4 eV. Surprisingly, the molecule with pentathiophene attached via β-position to the PDI unit upon annealing showed a predominant hole mobility of 1 × 10-4 cm2 V-1 s-1 whereas the compound with branched pentathiophene attached via β-position showed an electron mobility of 9.8 × 10 -7 cm2 V-1 s-1. This suggests that charge transport properties can be tuned by simply varying the architecture of pentathiophene units. © 2010 American Chemical Society.|
|Source Title:||Organic Letters|
|Appears in Collections:||Staff Publications|
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