Naphthalene flanked diketopyrrolopyrrole based organic semiconductors for high performance organic field effect transistors
MetadataShow full item record
Here, we design and synthesize three new diketopyrrolopyrrole (DPP) derivatives with naphthalene, possessing large-scaled p-delocalized electronic structure, as the flanking groups and both linear (n-decyl and n-dodecyl) and branched (2-hexyldecyl)alkyl chains as substitutions as active layer for high performance organic field-effect transistors (OFETs). The thermal, photophysical properties, energy levels and solid state molecular stacking have been studied in detail. All the materials show excellent thermal stability with a decomposition temperature of 400 °C, high semi-crystallinity feature, suitable HOMO & LUMO energy levels, and varying crystalline domain sizes in thin films. Bottom-contact/top-gate transistor devices are thus fabricated to investigate the mobility. Encouragingly, all compounds function well in OFET devices and show significant potential as p-type semiconducting materials. The monomer with the n-decyl alkyl chain (D-DPPN) shows the highest mobility of 0.019 cm2V-1s-1, with the Ion/Ioffratio reaching 106. We for the first time synthesize naphthalene flanked DPP monomers and achieve high mobility in OFET devices when using these monomers without any further functionalization as semiconductors directly. The primary result that high mobility is observed for monomers only opens a new way for further DPP application and provides more possibilities for constructing high performance polymeric and small molecular semiconductors based on this new DPP dye.
Showing items related by title, author, creator and subject.
The potential of a cross-linked human serum albumin dimer in diabetic rats as an augmenting agent for antidiabetic drugsTaguchi, K.; Chuang, Victor; Yamasaki, K.; Kawai, K.; Maruyama, T.; Komatsu, T.; Otagiri, Masaki (2015)Purpose: The half-life of insulin analogs and glucagon like peptide-1 (GLP-1) receptor agonist is prolonged through binding to albumin, but this may not occur in hypoalbuminemic diabetic patients with protein leaking from ...
Influence of phenoxy-terminated short-chain pendant groups on gas transport properties of cross-linked poly(ethylene oxide) copolymersKusuma, V.; Matteucci, S.; Freeman, B.; Danquah, Michael; Kalika, D. (2009)Gas transport properties of rubbery cross-linked poly(ethylene oxide) films containing short phenoxy-terminated pendant chains are reported. Poly(ethylene glycol) diacrylate (PEGDA) was UV-polymerized with poly(ethylene ...
Formation of styrene monomer, dimer and trimer in the primary volatiles produced from polystyrene pyrolysis in a wire-mesh reactorZhou, J.; Qiao, Y.; Wang, W.; Leng, E.; Huang, J.; Yu, Yun; Xu, M. (2016)© 2016 Elsevier Ltd.This paper reports the formation of styrene monomer, dimer and trimer in the primary volatiles during fast pyrolysis of polystyrene in a wire-mesh reactor where secondary reactions of primary pyrolysis ...