Thickness-dependent electrical properties of soluble acene–polymer blend semiconductors

A review on 2,8-difluoro-5,11-bis(triethylsilylethynyl)anthradithiophene based organic thin film transistor

“…The field effect mobility was significantly low for too low and too high concentrations. Lee et al ascribed this to the thickness and homogeneity of the phase separated semiconductor crystals which led to the disruption of the charge carrier injection and transport along the vertical direction [61].…”

Tailoring the molecular weight of polymer additives for organic semiconductors

“…He et al reported that when drop casted in the solvent of toluene, TIPS pentacene pristine film exhibited a large misorientation angle of 43.9°±27.8°, whereas the addition of PαMS with TIPS pentacene strongly prevented such random crystal morphology and reduced the misorientation angle to 2.2°±1° [30]. 12 Another major benefit that rises from blending organic semiconductors with amorphous polymers is the occurrence of phase segregation between the organic semiconductor and polymer additive [154][155][156][157][158][159][160]. Such phase segregation can include lateral phase segregation, vertical phase segregation, or a mixture of both.…”

“…Another major benefit that rises from blending organic semiconductors with amorphous polymers is the occurrence of phase segregation between the organic semiconductor and polymer additive. 154–160 This phase segregation can include lateral phase segregation, vertical phase segregation, or a mixture of both. In particular, vertical phase segregation between the organic semiconductor and amorphous polymer can facilitate the formation of a more concentrated semiconductor layer at the interface between the active layer and the dielectric layer, expediting charge transport of the organic semiconductor.…”

From stretchable and healable to self-healing semiconducting polymers: design and their TFT devices

“…124 This is because if only the simple blending method is employed without promoting any suitable morphology, there may be a significant reduction in charge carrier mobility due to the charge transport impediment between the semiconducting domains by the insulating component. Thus, to solve this issue, researchers considered the influence of the processing approach, 73,125–128 thickness, 129 and nanoconfinement 32,130,131 on improving the stretchability of high-mobility polymer blends. As expected, these considerations led to the successful production of blended semiconducting polymers, which can actually effortlessly alter and even optimize the mechanical ductility, mobility/molecular ordering, and stability of conjugated polymer-FETs substantially, together with newly emerging polymer blend characteristics.…”