Jin-yang Liu, Hong-bin Cai, Huan-yi Ding, Kun Zhang, Nan Pan, Xiao-ping Wang. Spontaneous Cracking of Graphite Oxide Sheet on Oxygen Deficient ZnO Film[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 87-91. doi: 10.1063/1674-0068/27/01/87-91
Citation: Jin-yang Liu, Hong-bin Cai, Huan-yi Ding, Kun Zhang, Nan Pan, Xiao-ping Wang. Spontaneous Cracking of Graphite Oxide Sheet on Oxygen Deficient ZnO Film[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 87-91. doi: 10.1063/1674-0068/27/01/87-91

Spontaneous Cracking of Graphite Oxide Sheet on Oxygen Deficient ZnO Film

doi: 10.1063/1674-0068/27/01/87-91
Funds:  This work was supported by the Ministry of Science and Technology of China (No.2011CB921403), the Chi-nese Academy of Science (No.XDB01020000), and the National Natural Science Foundation of China.
  • Received Date: 2013-05-18
  • Graphite oxide (GO) is an important material of wide applications. Owing to its good mechanical property, the GO sheet is always expected to be stable and remains flat on various substrates. Here we demonstrate for the first time an unexpected behavior of the GO sheet on oxygen deficient ZnO film, namely the spontaneous cracking of the entire GO sheet into many small pieces. This unusual behavior has been carefully investigated by a series of control experiments and SEM, XPS and PL measurements. It is anticipated that the oxygen vacancies in the oxygen deficient ZnO film can annihilate epoxy groups of the GO sheet, resulting in the unzipping of the aligned epoxy groups on GO sheet. A prototype of the white light detector made from the cracked GO sheet is fabricated and the device demonstrates high stability and good reproducibility.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Spontaneous Cracking of Graphite Oxide Sheet on Oxygen Deficient ZnO Film

doi: 10.1063/1674-0068/27/01/87-91
Funds:  This work was supported by the Ministry of Science and Technology of China (No.2011CB921403), the Chi-nese Academy of Science (No.XDB01020000), and the National Natural Science Foundation of China.

Abstract: Graphite oxide (GO) is an important material of wide applications. Owing to its good mechanical property, the GO sheet is always expected to be stable and remains flat on various substrates. Here we demonstrate for the first time an unexpected behavior of the GO sheet on oxygen deficient ZnO film, namely the spontaneous cracking of the entire GO sheet into many small pieces. This unusual behavior has been carefully investigated by a series of control experiments and SEM, XPS and PL measurements. It is anticipated that the oxygen vacancies in the oxygen deficient ZnO film can annihilate epoxy groups of the GO sheet, resulting in the unzipping of the aligned epoxy groups on GO sheet. A prototype of the white light detector made from the cracked GO sheet is fabricated and the device demonstrates high stability and good reproducibility.

Jin-yang Liu, Hong-bin Cai, Huan-yi Ding, Kun Zhang, Nan Pan, Xiao-ping Wang. Spontaneous Cracking of Graphite Oxide Sheet on Oxygen Deficient ZnO Film[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 87-91. doi: 10.1063/1674-0068/27/01/87-91
Citation: Jin-yang Liu, Hong-bin Cai, Huan-yi Ding, Kun Zhang, Nan Pan, Xiao-ping Wang. Spontaneous Cracking of Graphite Oxide Sheet on Oxygen Deficient ZnO Film[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 87-91. doi: 10.1063/1674-0068/27/01/87-91

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