Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 8, Issue 45, Pages 31154-31165Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b09628
Keywords
conjugated polymers; organic semiconductors; field-effect transistor; fluorination; donor-acceptor copolymer
Funding
- UK's Engineering and Physical Sciences Research Council (EPSRC) [EP/G037515/1]
- British Council [173601536]
- Australian Research Council [DP130102616]
- EPSRC [EP/J021199/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J021199/1, 1104251] Funding Source: researchfish
- The British Council [173601536] Funding Source: researchfish
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The synthesis of the novel donor acceptor monomer 4,7-bis[(E)-2-(5-bromo-3-dodecylylthiophen-2-yOethenyl]5,6-difluoro-2,1,3-benzothiadiazole (FBT-V2T2) is reported. Polymerization with 4,4'-ditetradecyl-5,5'-bistrimethylstannyl-2,2'-bithiophene afforded a highly crystalline polymer that aggregated strongly in solution. Polymer films were well ordered resulting in high performance field-effect transistors with low onset voltages, negligible hysteresis, high channel current on/off ratios, and peak hole mobilities of up to 0.5 cm(2) V-1 s(-1). Notably the transistors exhibited close to ideal behavior with extracted mobilities almost independent of gate of voltage.
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