Analysis of ultrathin organic inverters by using in situ grazing incidence X-ray diffraction under high bending times and low voltage

Po Hsiang Fang, Fu Chiao Wu, Hwo Shuenn Sheu, Jia Hua Lai, Horng Long Cheng, Wei Yang Chou

Research output: Contribution to journalArticlepeer-review

Abstract

Low-operating-voltage organic inverters using bilayer cross-linked poly(4-vinylphenol)/Al2O3 dielectrics were fabricated on polyimide substrates. The flexible inverters could be operated at a supply voltage of as low as 2 V and achieve a gain of over 50 at 2 V. The organic inverters exhibited good mechanical and electrical stabilities after 104 times of bending due to the superior microstructural stabilities of the organic semiconductors, as confirmed by in situ 2D grazing incidence X-ray diffraction (GIXRD). Analysis of GIXRD spectra showed that the variation in the width of the diffraction peak was less than 1.5% after different bending times. The proposed inverters maintained stable gains of above 50 after 104 times of bending and had a maximum transition voltage shift of 0.31 V during the bending process. These findings imply that our inverters could be commercially applied to low-voltage flexible electronics.

Original languageEnglish
Article number106002
JournalOrganic Electronics
Volume88
DOIs
Publication statusPublished - 2021 Jan

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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