Rabbit Anti-Human DNTT Polyclonal antibody

The dielectric/semiconductor interface in organic field effect transistors (OFETs) is critical to their performance. Modification of this interface with functional molecules provides a wide range of possibilities for their applications as sensors. In this work, boronic acid molecules were used to modify the SiO2 dielectric surface in dinaphtho[2,3-b:2',3'-f]thieno[3,2-b] thiophene based OFETs. The device parameters, including most notably the threshold voltage, were significantly improved. The dielectric/semiconductor interface was analyzed using various measurement techniques, such as contact angle and atomic force microscopy. Our work provides evidence that easily functionable boronic acid derivatives improve the device performance of OFETs, which lays the foundation for further studies of such interface modified OFETs for use in sensing applications.

A quasi-equilibrium low-speed solution shearing method to deposit C-10-DNTT is developed. We focus on quantifying the effects of the key parameters, including the temperature, surface energy and receding speed of the contact line to understand the crystallization mechanisms. A finite element model that takes into consideration fluid dynamics, heat transfer and mass diffusion has been developed to simulate the experimental process. The optimized parameters obtained from the model simulation provide large-area (>1 cm(2)) and well-oriented crystals with high uniformity. The single crystallinity is confirmed by SAED and the fabricated devices show a high charge carrier mobility of up to 12.5 cm(2) V-1 s(-1) (average of 9.0 cm(2) V-1 s(-1)) and a high on/off ratio of 2 x 10(9). A useful guideline on how to optimally select the experimental parameters for meniscus guided deposition methods is provided, based on which high-quality crystals are successfully grown on a solution-processed high-k gate dielectric, which achieves mobility of up to 4.2 cm(2) V-1 s(-1) (an average of 3.0 cm(2) V-1 s(-1)) in an operating range of 4 V.