Design and implementation of an inverter and its application in ring oscillator circuits using an organic-thin-film-transistor based on an FTM-derived channel. (29th October 2021)

• Record Type: Journal Article
• Authors: Singh, Abhishek Kumar; Dwivedi, A D D; Pandey, A; Chakrabarti, P
• Is Part Of: Semiconductor science and technology. Volume 36:Number 12(2021)
• Publication Date: 2021-10-29
• Subjects: OTFT circuits -- UOTFT compact model -- ring oscillator -- PBTTT-C14; Semiconductors -- Periodicals; 621.38152
• DOI: 10.1088/1361-6641/ac274f
• Languages: English
• ISSNs: 0268-1242

Abstract

Abstract: The organic thin film transistor (OTFT) has evolved in a big way, eventually replacing inorganic-based solid-state devices. An extensive survey of the literature reveals that the full potential of OTFTs has neither been explored nor exploited for circuit-level implementation for logic circuit design, despite the popularity of these devices. We have fabricated a PBTTT-C14 (poly (2, 5-bis (3-tetradecylthiophen 2yl) thieno (3, 2b) thiophene)) based OTFT by using a low-cost solution-processable technique via the floating transfer method (FTM). The fabricated OTFT using FTM shows better electrical behavior than its counterpart fabricated by using the conventional solution-processable technique. The superior electrical characteristics of the FTM-derived devices prompted us to develop a compact model of the p-channel OTFT. The compact modeling results of OTFT show a reasonably good agreement with our experimental results. We have also designed and implemented a PBTTT-C14 OTFT-based inverter circuit and ring oscillator circuit to explore the future of organic-based integrated circuits.