Jump to main content
Jump to site search

Issue 7, 2014
Previous Article Next Article

Poly-4-vinylphenol and poly(melamine-co-formaldehyde)-based graphene passivation method for flexible, wearable and transparent electronics

Author affiliations

Abstract

Next generation graphene-based electronics essentially need a dielectric layer with several requirements such as high flexibility, high transparency, and low process temperature. Here, we propose and investigate a flexible and transparent poly-4-vinylphenol and poly(melamine-co-formaldehyde) (PVP/PMF) insulating layer to achieve intrinsic graphene and an excellent gate dielectric layer at sub 200 °C. Chemical and electrical effects of PVP/PMF layer on graphene as well as its dielectric property are systematically investigated through various measurements by adjusting the ratio of PVP to PMF and annealing temperature. The optimized PVP/PMF insulating layer not only removes the native –OH functional groups which work as electron-withdrawing agents on graphene (Dirac point close to zero) but also shows an excellent dielectric property (low hysteresis voltage). Finally, a flexible, wearable, and transparent (95.8%) graphene transistor with Dirac point close to zero is demonstrated on polyethylene terephthalate (PET) substrate by exploiting PVP/PMF layer which can be scaled down to 20 nm.

Graphical abstract: Poly-4-vinylphenol and poly(melamine-co-formaldehyde)-based graphene passivation method for flexible, wearable and transparent electronics

Back to tab navigation

Publication details

The article was received on 09 Dec 2013, accepted on 30 Dec 2013 and first published on 08 Jan 2014


Article type: Paper
DOI: 10.1039/C3NR06517K
Nanoscale, 2014,6, 3830-3836

  •   Request permissions

    Poly-4-vinylphenol and poly(melamine-co-formaldehyde)-based graphene passivation method for flexible, wearable and transparent electronics

    I. Lee, H. Park, J. Park, G. Yoo, M. Lim, J. Park, S. Rathi, W. Jung, J. Kim, S. Kim, Y. Roh, G. Kim and J. Park, Nanoscale, 2014, 6, 3830
    DOI: 10.1039/C3NR06517K

Search articles by author

Spotlight

Advertisements