Polymer field-effect transistors with inkjet-printed silver electrodes: from device fabrication to circuit simulation
- Authors
- Bae, Jisuk; Park, Soyoung; Jung, Haeji; Ko, Eun-Hye; Kymissis, Ioannis; Kim, Chang-Hyun
- Issue Date
- Jan-2024
- Publisher
- SPRINGER
- Citation
- JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v.35, no.2
- Journal Title
- JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
- Volume
- 35
- Number
- 2
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/90393
- DOI
- 10.1007/s10854-023-11819-3
- ISSN
- 0957-4522
1573-482X
- Abstract
- Organic electronics is an enabler of future wearable and intelligent technologies. However, the majority of researches on organic devices employ vacuum-evaporation methods for their metallization, blurring the manufacturing advantages of solution-processable semiconductors. We present a combined experimental and theoretical investigation into the suitability of silver inkjet-printing as a fast, low-cost, low-temperature, and ambient processing option to produce high-quality contacts for field-effect transistors. Printing steps are carefully optimized to solve wettability, film-delamination, and charge-injection issues, for yielding p-type transistors with a soluble diketopyrrolopyrrole polymer as a channel material. Drift-diffusion simulation is carried out in parallel to reproduce the terminal characteristics of the fabricated transistors, revealing fundamental insights into charge traps, carrier mobility, electrode energy, and doping. Finally, resistor- and transistor-loaded digital inverters were operated on a circuit simulator under various conditions to address their applicability.
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