Understanding and engineering of the junctions formed at the contact interface between metallic electrodes and semiconductor materials are key elements in modern electronic devices. With much research effort and development of technologies, various methods have been established to make the ideal interface between metal (M) and semiconductor (S) (M/S interface) achieve theoretically predicted performances. One of the most important parameters for M/S interface is the Schottky barrier height (SBH) because the SBH fundamentally determine the current conduction across the M/S interface and then impact of the device performances. In the ideal M/S interface, the SBH value can be theoretically predicted based on the Schottky-Mott rule, where the value can be expressed by the work function of metal and the Fermi level of semiconductor. Because of the simplicity of designing M/S interface, some attempts at the M/S interface leads to some interesting results in the tunability of SBH, achieving desirable electrical properties in the devices. Especially for Schottky barrier diode (SBD), the SBH value has a direct effect on characteristic parameters of the SBD, for example, working voltage, rectification ratio and switching rate, respectively. However, the high-energy methods such as sputtering, vacuum deposition, plating, and photolithography is mainly used for creating the ideal M/S interface, in which multi-staged masking and etching under highly vacuumed environment and use of harmful and environmentally undesirable chemical are required. On the other hand, as one of the low-energy methods, noble approach of van der Waals junctions are developed very recently, in which metal electrodes with atomically flat surfaces are fabricated and laminated onto semiconductors. In the approach, however, the applicable metals and semiconductors are currently limited to some candidates. Moreover, the performances of the devices are also limited, because I-V relationship is to be determined by work function of metal and Fermi level of semiconductor according with the Schottky-Mott rule. During the course of securing alternatives for ecofriendly and widely applicable methods, the printed electronics (PE) has been emerged as one of alternative methods for making the practical devices using conductive inks. Though PE is one of the printing technologies specified into electronic manufacturing with the usage of the traditional printing methods, PE is an advantageous and promising method as not only ecofriendly but also cost-effective process compared with traditional processes.