Two new semiconductors for organic thin-film transistors (OTFTs), diperfluorophenyl anthradithiophene (DFPADT) and dimethyl anthradithiophene (DMADT), have been synthesized and characterized. The first material exhibits ambipolar transport in OTFT devices with field-effect mobilities (m) of 6 Â 10 À4 cm 2 V À1 s À1 and 0.05 cm 2 V À1 s À1 for electrons and holes, respectively. Therefore, diperfluorophenyl substitution was found to be effective to induce n-type transport. Dimethyl-substituted anthradithiophene (DMADT) was also synthesized for comparison and exhibited exclusively hole transport with carrier mobility of $0.1 cm 2 V À1 s À1 . Within this semiconductor family, OTFT carrier mobility values are strongly dependent on the semiconductor film growth conditions, substrate deposition temperatures, and gate dielectric surface treatment.
A facile one-pot [1+1+1] synthesis of dithieno[2,3-b:3',2'-d]thiophene (; ) has been achieved, enabling the efficient realization of a new DTT-based semiconductor series for organic thin-film transistors (OTFTs).
In this study, by combining a large-area MoS2 monolayer with silver plasmonic nanostructures in a deformable polydimethylsiloxane substrate, we theoretically and experimentally studied the photoluminescence (PL) enhancement of MoS2 by surface lattice resonance (SLR) modes of different silver plasmonic nanostructures. We also observed the stable PL enhancement of MoS2 by silver nanodisc arrays under differently applied stretching strains, caused by the mechanical holding effect of the MoS2 monolayer. We believe the results presented herein can guarantee the possibility of stably enhancing the light emission of transition metal dichalcogenides using SLR modes in a deformable platform.
As an auxiliary facility to assist a disabled patient to perform a normal walk, the crutch or the wheelchair is considered to provide an essential mobility as a mechanical facility. However, these facilities can not provide a basic function for these patients to sustain a standing position except a mechanical prosthesis. To control the activity of the prosthesis, a muscle membrane potential produced via an arm swing during the period of a walk is used as a control signal. In this paper, we adopt a dual ADC interface on a STM3210E-LK board to extract two kinds of muscle membrane potentials on a single arm. These two potential signals can be used to control the activities of the mechanical prosthesis. In the experiment we use these two potential signals to control the activities of a humanoid robot to simulate the activities of the mechanical prosthesis.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.