Vertical organic field-effect transistor array fabrication based on laser holography lithography process

Due to the handiness in obtaining a short channel length, vertical organic field-effect transistors (VOFETs) have been pointed as an alternative form of conventional organic thin-film transistor (OTFT). With VOFET structure, it is relatively simple to obtain an short channel length and a large channel width-to-length ratio (W/L) value in a restricted device area, so a large current driving capability which can hardly be achieved with organic semiconductor, can be realized. Moreover, VOFETs can be utilized as a platform for many kinds of electrical applications associated with other various functional devices such as organic light-emitting diodes (OLEDs) and sensors.