Facile Direct Printing of DPP-Based Polymers for Organic Field-Effect Transistors and Logic Gates

Jisu Hong, Jingwan Kim, Zhijun Li, Chenhao Cong, Barry P. Rand, Sang Yong Nam, Se Hyun Kim, Yun Hi Kim

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Polymer semiconductors having solubility in organic solvents can enable facile, low-cost, and large-area solution processes to fabricate electronic devices with various applications. However, it has been a challenge to build complicated circuits by using them due to device-to-device variation. In this study, we designed a diketopyrrolopyrrole (DPP)-based polymer with long and branched alkyl side chains to improve the solubility of DPP polymers. While the long and branched side chains are introduced to the DPP moieties for improved solubility, the far branching point in the side chains was expected to prevent severe steric hindrance of the long side chains and to allow DPP moieties to have π-π interactions and form crystalline structures. To examine the feasibility of using P29DPP-TT as a semiconductor in integrated electronic systems, the electrohydrodynamic (EHD) jet printing technique was used in for local area patterning. The organic field-effect transistors (OFETs) incorporating EHD-printed P29DPP-TT yield promising field-effect mobility (μFET) of 0.55 cm2 V-1 s-1. Complementary inverters and NAND/NOR logic gates were also realized by fabricating OFETs with line-printed P29DPP-TT and polymer gate dielectrics. It indicates that P29DPP-TT with excellent solubility can be applied to solution-processed integrated electronic devices.

Original languageEnglish (US)
Pages (from-to)4114-4124
Number of pages11
JournalACS Applied Electronic Materials
Volume5
Issue number8
DOIs
StatePublished - Aug 22 2023

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Electrochemistry

Keywords

  • diketopyrrolopyrrole-based polymer
  • electrohydrodynamic jet printing
  • logic gates
  • organic field-effect transistor
  • printed electronics

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