Abstract
The influence of the substitution pattern (unsymmetrical or symmetrical), the nature of the side chain (linear or branched), and the processing of several solution processable alkoxy-substituted poly(p-phenylene vinylene)s (PPVs) on the charge-carrier mobility in organic field-effect transistors (OFETs) is investigated. We have found the highest mobilities in a class of symmetrically substituted PPVs with linear alkyl chains (e.g., R1, R2 = n-C11H23, R3 = n-C18H37). We have shown that the mobility of these PPVs can be improved significantly up to values of 10-2 cm2 V-1 s-1 by annealing at 110°C. In addition, these devices display an excellent stability in air and dark conditions. No change in the electrical performance is observed, even after storage for thirty days in humid air.
Original language | English |
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Pages (from-to) | 872 - 876 |
Number of pages | 5 |
Journal | Advanced Functional Materials |
Volume | 15 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2005 |