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Organic field effect transistors from triarylamine side-chain polymers
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Image of FIG. 1.
FIG. 1.

Molecular structures of the polymers, (a) poly(vinyltriphenylamine) PvTPA, (b) poly(vinyldimethoxytriphenylamine) PvDMTPA, (c) poly(vinyldimethoxytriphenlydiamine) PvDMTPD, (d) schematic of a bottom gate bottom contact OFET architecture.

Image of FIG. 2.
FIG. 2.

[(a)–(c)] The upper graphs show the output characteristics with to −60 V in steps of −10 V. [(d)–(f)]. The bottom graphs show the transfer characteristics of PvTPA, PvDMTPA, and PvDMTPD for . The black lines correspond to the as spun polymers and the gray lines to the annealed transistors. The dashed lines show the first derivative in units of the charge carrier mobility as calculated from the saturation region.

Image of FIG. 3.
FIG. 3.

(a) Charge carrier mobility of PvDMTPA as a function of the molecular weight. Black squares show as spun transistors and the gray circles show the mobilities for annealed transistors. (b) Glass transition temperature of PvDMTPA as a function of the molecular weight. The gray curve shows an asymptotic fit according to Fox and Flory. The for shows a certain inconsistency due to a double peak in the curve (see supplementary information S2) Ref.23.


Generic image for table
Table I.

Material properties and OFET results for PvTPA, PvDMTPA, and PvDMTPD.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Organic field effect transistors from triarylamine side-chain polymers