| 초록 |
The introduction of an appropriate functionality on the electrode/active layer interface has been found to be an effective way to improve the electrical performances of organic field-effect transistors (OFETs). In this work, we systematically designed five different OFETs, one with pristine S/D electrodes (denoted as pristine S/D), and the remaining ones made by symmetrically or asymmetrically functionalizing the S/D electrodes with up to two different thiolated self-assembled monolayers (SAMs): thiophenol (TP) and 2,3,4,5-pentafluorobenzene thiol (PFBT). The prototypical vapor-deposited p-type dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT) was used as the OSC active layer. The results were correlated with the additional electron density, surface potential, and effective work function. These contributions represent a significant step forward in improving the electrical performances of various organic electronics such as OFETs, inverters, solar cells, and sensors. |
