Organic thin-film transistor (OTFT) dielectric layers that selfassemble and enable transistor function at low voltages have been developed by a team of chemists. Myung-Han Yoon et al. developed working transistors that employ organosilane-based dielectric layers that organize themselves from solution. The resulting dielectric films are 2.3–5.5 nm thick, smooth, and nearly defect-free. The films...

We report on the mechanical fatigue behavior of printed, organic, thin-film transistors (OTFTs) based on a polymer semiconductor, investigated by repeatedly applying strain to the flexible OTFT devices and assessing their electrical characteristics after 60,000 bending cycles. As part of our investigation, we established that the rates of reduction in source/drain currents in the OTFT device de...

Surface Functionalization In article number 2202453, Xing Cheng and co-workers demonstrate the high-quality surface functionalization by vapor phase grown self-assembled monolayers (SAMs), which are free of morphological defects could be escalated into wafer scale. Herein, chemical bondings in anchoring groups omitted for better clarification. The carrier mobilities organic thin-film transistor...

n-channel organic thin film transistors (OTFTs) with field-effect mobility comparable to that typically reported for pchannel pentacene TFTs were fabricated on oxidized silicon wafers using N,N'-ditridecylperylene-3,4,9,10tetracarboxylic diimide (PTCDI-C13H27) as the semiconductor. Au, Cr, Al, and LiF/Al source and drain contacts were studied. Accumulation mode n-channel transistor operation wa...

The organic material soluble polyimide (PI) and organic-inorganic hybrid PI-barium titanate (BaTiO3) nanoparticle dielectric materials (IBX, where X is the concentration of BaTiO3 nanoparticles in a PI matrix) were successfully synthesized through a sol-gel process. The effects of various BaTiO3 contents on the hybrid film performance and performance optimization were investigated. Furthermore,...

A non-quasi-static compact model well suited for the simulation of electrical behavior printed organic thin-film transistors (OTFTs) is proposed and validated. The based on discretization current continuity equation by using a spline collocation approach while transport in semiconductor described variable range hopping theory. accounts presence parasitic regions that are often found layouts OTF...

A new diketopyrrolopyrrole (DPP)-containing donor-acceptor polymer, poly(2,5-bis(2-octyldodecyl)-3,6-di(furan-2-yl)-2,5-dihydro-pyrrolo[3,4-c]pyrrole-1,4-dione-co-thieno[3,2-b]thiophene) (PDBF-co-TT), is synthesized and studied as a semiconductor in organic thin film transistors (OTFTs) and organic photovoltaics (OPVs). High hole mobility of up to 0.53 cm(2) V(-1) s(-1) in bottom-gate, top-cont...

The performance of organic thin-film transistors (OTFT) for flexible, low cost and disposable “plastic” electronic products advances rapidly: various organic semiconductors display hole or electron carrier mobilities that compare favorably with those of hydrogenated amorphous silicon, the inorganic counterpart for such applications as flexible displays, smart cards and radio frequency identific...

We report a method for controlling the orientations of conjugated polymers in the active layer of organic thin-film transistors (OTFTs) by annealing the film at the melting temperature in a vertically aligned multiwalled carbon nanotube (VA-CNT) template under various load pressures. Poly(3-hexylthiophene) [P3HT] molecules are effectively aligned in the melting state annealing at 240 °C for 30 ...

Admittance spectroscopy is employed to explain the property differences observe between organic thin film transistors (OTFTs) fabricated with various gate insulator layers based on poly(4-vinylphenol) (PVP) and poly(methyl methacrylate) (PMMA). The objective achieved through development of an equivalent circuit a compact analytical model device core structure, namely, metal–insulator–semiconduc...