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Compact modelling and SPICE simulation for three-dimensional, inkjet-printed organic transistors, inverters and ring oscillators

Title
Compact modelling and SPICE simulation for three-dimensional, inkjet-printed organic transistors, inverters and ring oscillators
Authors
JUNG, SUNGYEOPKWON, JIMINTOKITO, SHIZUOHOROWITZ, GILLESBONNASSIEUX, YVANJUNG, SUNGJUNE
Date Issued
Oct-2019
Publisher
IOP PUBLISHING LTD
Abstract
We report an in-depth study of three-dimensional (3D) inkjet-printed flexible organic field-effect transistors (FETs) and integrated circuits (ICs), and demonstrate the necessity, the feasibility and the key aspects of modelling-driven design and analysis. In particular, we performed compact modelling of the flexible printed organic FETs to determine transistor parameters from measured electrical characteristics, and to optimize the design of transistors for a balanced inverter. We also conducted a SPICE simulation of both static and dynamic behaviours of flexible printed organic complementary inverters and ring oscillators. This study revealed design rules to guide fabrication of the 3D structure of the inverter. The study also showed that the parasitic capacitances are dominant factors that determine the transient behaviour of the ring oscillator. Our work provides insights that can guide further improvement of flexible printed organic FETs and ICs towards the realisation of increasingly complex organic ICs and unconventional electronic applications.
Keywords
Capacitance; Electric inverters; Flexible electronics; Ink jet printing; Integrated circuit design; Organic field effect transistors; SPICE; Transistors; Compact model; Organic integrated circuits; Organic transistor; Printed electronics; SPICE simulations; 3D printers
URI
http://oasis.postech.ac.kr/handle/2014.oak/99655
ISSN
0022-3727
Article Type
Article
Citation
JOURNAL OF PHYSICS D-APPLIED PHYSICS, vol. 52, no. 44, 2019-10
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 JUNG, SUNGJUNE
Dept. of Creative IT Engin.
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