@article{SingarajuCadilhaMarquesGruberetal.2020,
  author    = {Surya Abhishek Singaraju and Gabriel Cadilha Marques and Patric Gruber and Robert Kruk and Horst Hahn and Ben Breitung and Jasmin Aghassi-Hagmann},
  title     = {Fully Printed Inverters using Metal‐Oxide Semiconductor and Graphene Passives on Flexible Substrates},
  series   = {Physica status solidi. Rapid research letters},
  volume    = {14},
  number    = {9},
  publisher = {Wiley-VCH Verlag GmbH \& Co. KGaA},
  issn      = {1862-6254},
  doi       = {10.1002/pssr.202000252},
  pages     = {2070036},
  year      = {2020},
  abstract  = {Printed and flexible metal‐oxide transistor technology has recently demonstrated great promise due to its high performance and robust mechanical stability. Herein, fully printed inverter structures using electrolyte‐gated oxide transistors on a flexible polyimide (PI) substrate are discussed in detail. Conductive graphene ink is printed as the passive structures and interconnects. The additive printed transistors on PI substrates show an on/off ratio of 106 and show mobilities similar to the state‐of‐the‐art printed transistors on rigid substrates. Printed meander structures of graphene are used as pull‐up resistances in a transistor–resistor logic to create fully printed inverters. The printed and flexible inverters show a signal gain of 3.5 and a propagation delay of 30 ms. These printed inverters are able to withstand a tensile strain of 1.5\% following more than 200 cycles of mechanical bending. The stability of the electrical direct current (DC) properties has been observed over a period of 5 weeks. These oxide transistor‐based fully printed inverters are relevant for digital printing methods which could be implemented into roll‐to‐roll processes.},
  language  = {en}
}