Direct observation of quantum-confined graphene-like states and novel hybrid states in graphene oxide by transient spectroscopy.

Wang, Lei; Wang, Hai-Yu; Wang, Yan; Zhu, Shou-Jun; Zhang, Yong-Lai; Zhang, Jun-Hu; Chen, Qi-Dai; Han, Wei et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

Quantum-confined graphene-like electronic states are directly observed in graphene oxide and photothermally reduced graphene oxide via transient spectroscopy. An unexpected novel hybrid state arising from amorphous carbon-like peripheral structure with high sp(3) /sp(2) carbon ratio in close vicinity of confined graphene-like states is found commonly existent in various carbon nanomaterials, including graphene oxide, graphene quantum dots, and carbon dots.

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