Stretchable Electroluminescent Display Enabled by Graphene-Based Hybrid Electrode

Heechang Shin, Bhupendra K. Sharma, Seung Won Lee, Jae Bok Lee, Minwoo Choi, Luhing Hu, Cheolmin Park, Jin Hwan Choi, Tae Woong Kim, Jong Hyun Ahn

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Stretchable alternating-current electroluminescent (ACEL) devices are required due to their potential in wearable, biomedical, e-skin, robotic, lighting, and display applications; however, one of the main hurdles is to achieve uniform electroluminescence with an optimal combination of transparency, conductivity, and stretchability in electrodes. We therefore propose a fabrication scheme involving strategically combining two-dimensional graphene layers with a silver nanowire (Ag NW)-embedded PEDOT:PSS film. The developed hybrid electrode overcomes the limitations of commonly known metallic NWs and ionic conductor-based electrodes for ACEL applications. Furthermore, the potential of the hybrid electrode is realized in demonstrating large-area stretchable ACEL devices composed of an 8 × 8 passive array. The prototype ACEL passive array demonstrates efficient and uniform electroluminescence under high levels of mechanical deformation such as bending, rolling, twisting, and stretching.

Original languageEnglish
Pages (from-to)14222-14228
Number of pages7
JournalACS Applied Materials and Interfaces
Volume11
Issue number15
DOIs
Publication statusPublished - 2019 Apr 17

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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    Shin, H., Sharma, B. K., Lee, S. W., Lee, J. B., Choi, M., Hu, L., Park, C., Choi, J. H., Kim, T. W., & Ahn, J. H. (2019). Stretchable Electroluminescent Display Enabled by Graphene-Based Hybrid Electrode. ACS Applied Materials and Interfaces, 11(15), 14222-14228. https://doi.org/10.1021/acsami.8b22135