Solution-processable graphene-silver nanowire hybrids as transparent conducting films

Hyung Ouk Choi; Seung Bo Yang; Byung Hyun Min; Dae Woo Kim; Kyeong Min Cho; Hee Tae Jung

doi:10.1166/sam.2014.2200

Solution-processable graphene-silver nanowire hybrids as transparent conducting films

Hyung Ouk Choi, Seung Bo Yang, Byung Hyun Min, Dae Woo Kim, Kyeong Min Cho, Hee Tae Jung

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

We suggest facile method for improving significantly conductivity of reduced graphene oxide (RGO) film with a negligible loss of transmittance by introducing well dispersed low density AgNWs below the percolation threshold and optimal thermal annealing. This method provides high reduction ratio of sheet resistance of RGO film (~98%). The RGO-AgNW hybrid film after thermal annealing at 250 °C showed low sheet resistance on the order of 10² Ω/sq at a transmittance of 80%. This value is about two orders of magnitude lower than pristine RGO film with sheet resistance of 10⁴ Ω/sq. This RGO-AgNW hybrid films show high ratio of DC to optical conductivity (σ_DC/σ_OP ~ 4.2). This successful strategy can be suspected as the most effective way to reduce the sheet resistance of RGO films for a variety of optoelectronic device applications.

Original language	English
Pages (from-to)	2304-2311
Number of pages	8
Journal	Science of Advanced Materials
Volume	6
Issue number	11
DOIs	https://doi.org/10.1166/sam.2014.2200
Publication status	Published - 2014

All Science Journal Classification (ASJC) codes

Materials Science(all)

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Choi, H. O., Yang, S. B., Min, B. H., Kim, D. W., Cho, K. M., & Jung, H. T. (2014). Solution-processable graphene-silver nanowire hybrids as transparent conducting films. Science of Advanced Materials, 6(11), 2304-2311. https://doi.org/10.1166/sam.2014.2200

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abstract = "We suggest facile method for improving significantly conductivity of reduced graphene oxide (RGO) film with a negligible loss of transmittance by introducing well dispersed low density AgNWs below the percolation threshold and optimal thermal annealing. This method provides high reduction ratio of sheet resistance of RGO film (~98%). The RGO-AgNW hybrid film after thermal annealing at 250 °C showed low sheet resistance on the order of 102 Ω/sq at a transmittance of 80%. This value is about two orders of magnitude lower than pristine RGO film with sheet resistance of 104 Ω/sq. This RGO-AgNW hybrid films show high ratio of DC to optical conductivity (σDC/σOP ~ 4.2). This successful strategy can be suspected as the most effective way to reduce the sheet resistance of RGO films for a variety of optoelectronic device applications.",

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