American Chemical Society
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Reduced Graphene Oxide (rGO)-Wrapped Fullerene (C60) Wires

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journal contribution
posted on 2011-10-25, 00:00 authored by Jieun Yang, Mihee Heo, Hyo Joong Lee, Su-Moon Park, Jin Young Kim, Hyeon Suk Shin
The assembly of reduced graphene oxide (rGO) and fullerene (C60) into hybrid (rGO/C60) wires was successfully performed by employing the liquid–liquid interfacial precipitation method. The rGO sheets spontaneously wrapped C60 wires through the π–π interaction between rGO and C60. Structural characterization of the rGO/C60 wires was carried out by using UV/visible spectroscopy, scanning electron microscopy, and transmission electron microscopy. FET devices with rGO/C60 wires were fabricated to investigate their electrical properties. The IdsVg curves of the hybrid wires exhibited p-type semiconducting behavior both in vacuum and in air, indicating hole transport through rGO as a shell layer, whereas pure C60 wires and rGO sheets showed n-type and ambipolar behaviors, respectively, under vacuum. Possible application of the fabricated wires, such as photovoltaic devices, was also demonstrated.