Flexible, Transparent, Conducting Films of Randomly Stacked Graphene from Surfactant-Stabilized, Oxide-Free Graphene Dispersions

DUESBERG, GEORG; COLEMAN, JONATHAN

Flexible, Transparent, Conducting Films of Randomly Stacked Graphene from Surfactant-Stabilized, Oxide-Free Graphene Dispersions

Files

De Small 09.pdf (2.55 MB)

Date

2010

Authors

DUESBERG, GEORG

COLEMAN, JONATHAN

Citation

De, S, King, PJ, Lotya, M, O'Neill, A, Doherty, EM, Hernandez, Y, Duesberg, GS, Coleman, JN, Flexible, Transparent, Conducting Films of Randomly Stacked Graphene from Surfactant-Stabilized, Oxide-Free Graphene Dispersions, Small, 6, 3, 2010, 458-464

Abstract

We have exfoliated graphite in water to give dispersions of mono and few-layer graphene stabilised by surfactant. These dispersions can be used to form thin, disordered films of randomly stacked, oxide-free, few-layer graphenes. These films are transparent with a DC conductivity of up to 1.5'104 S/m. The conductivity is stable under flexing for at least 2000 cycles. The electrical properties are limited by disorder and aggregation suggesting future routes for improvement.