Skip to main content Accessibility help

Controllable formation of graphene and graphene oxide sheets using photo-catalytic reduction and oxygen plasma treatment

  • Fatemeh Ostovari (a1) (a2), Yaser Abdi (a1) and Foad Ghasemi (a1)


Au/SiO2/Si interdigital electrodes with thickness of 1 μm were created on silicon substrate. Graphene oxide (GO) sheets hanging from these electrodes were obtained by spin coating of chemically synthesized GO dispersed in water. We used UV-light-induced photo-catalytic activity of titanium oxide nanoparticles to reduce the GO layer. Effects of the photo-induced chemical reduction on the conductivity of the GO were investigated. Also, low power DC plasma was used for oxidation of the sheets. Oxygen bombardment leads to sheets with low electrical conductivity. Measurements show that graphene and GO sheets with the controlled electrical conductivity were obtained by these processes. Scanning electron and atomic force microscopy were used to study the morphology of the TiO2/GO and graphene structures. X-ray diffraction and Raman scattering analysis were used to verify the structural characteristics of the prepared sheets. Analysis showed a gradual increase in the number of C-O bonds on the surface of the graphene layer as a result of increasing the time of plasma bombardment. Based on the Raman spectroscopy, the photo-catalytic activity of TiO2 nanoparticles resulted in a decrease in the number of C-O bonds.


Corresponding author



Hide All
[1]Novoselov, K.S. et al., Science 306, 666 (2004)
[2]Stankovich, S. et al., Carbon 45, 1558 (2007)
[3]Gomez-Navarro, C. et al., Nano Lett. 7, 3499 (2007)
[4]Gilje, S., Han, S., Wang, M., Wang, K.L., Kaner, R.B., Nano Lett. 7, 3394 (2007)
[5]Robinson, J.T., Perkins, F.K., Snow, E.S., Wei, Z.Q., Sheehan, P.E., Nano Lett. 8, 3137 (2008)
[6]Das, S. et al., Polymer 53, 2485 (2012)
[7]Wang, X., Zhi, L.J., Tsao, N., Tomovic, Z., Li, J.L., Mullen, K., Angew. Chem. Int. Ed. 47, 2990 (2008)
[8]Liang, X., Fu, Z., Chou, S.Y., Nano Lett. 7, 3840 (2007)
[9]Stampfer, C., Schurtenberger, E., Molitor, F., Güttinger, J., Ihn, T., Ensslin, K., Nano Lett. 8, 2378 (2008)
[10]Bao, W., Zhang, H., Bruck, J., Lau, C.N., Bockrath, M., Standley, B., Nano Lett. 8, 3345 (2008)
[11]Schedin, F. et al., Nat. Mater. 6, 652 (2007)
[12]Stankovich, S. et al., Carbon 45, 1558 (2007)
[13]Schniepp, H.C. et al., J. Phys. Chem. B 110, 8535 (2006)
[14]Chitara, B., Panchakarla, L.S., Krupanidhi, S.B., Rao, C.N., Adv. Mat. 23, 5419 (2011)
[15]Wang, Y., Shao, Y., Matson, D.W., Li, J., Lin, Y., ACS Nano 4, 1790 (2010)
[16]Williams, G., Seger, B., Kamat, P.V., ACS Nano 2, 1487 (2008)
[17]Akhavan, O., Ghaderi, E., J. Phys. Chem. C 113, 20214 (2009)
[18]Qi, J.L., Wang, X., Zheng, W.T., Tian, H.W., Hu, C.Q., Peng, Y.S., J. Phys. D: Appl. Phys. 43, 055302 (2010)
[19]Abdi, Y., Mohajerzadeh, S., Koohshorkhi, J., Robertson, M.D., Bennett, J.C., Carbon 46, 1611 (2008)
[20]Abdi, Y., Arzi, E., Mohajerzadeh, S., Eur. Phys. J. Appl. Phys. 44, 149 (2008)
[21]Darbari, S., Abdi, Y., Mohajerzadeh, S., E. Asl Soleimani, Carbon 48, 2493 (2010)
[22]Hummers, W.S., Offeman, R.E., J. Am. Chem. Soc. 80, 1339 (1958)
[23]Stankovich, S. et al., Carbon 45, 1558 (2007)
[24]Li, B. et al., Chem. Commun. 46, 3499 (2010)
[25]Tuinstra, F., Koenig, J.L., J. Chem. Phys. 53, 1126 (1970)
[26]Ferrari, A.C., Robertson, J., Phys. Rev. B 61, 14095 (2000)
[27]Graf, D. et al., Nano Lett. 7, 238 (2007)
[28]Jiang, Y., Zhang, Q., Li, F., Niu, L., Sens. Actuators B 161, 728 (2012)
[29]Pan, D., Zhang, J., Li, Z., Wu, M., Adv. Mat. 22, 734 (2010)
[30]Chen, H.Q., Muller, M.B., Gilmore, K.J., Wallace, G.G., Li, D., Adv. Mat. 20, 3557 (2008)
[31]Saikia, B.K., Boruaha, R.K., Gogoi, P.K., J. Chem. Sci. 121, 103 (2009)

Controllable formation of graphene and graphene oxide sheets using photo-catalytic reduction and oxygen plasma treatment

  • Fatemeh Ostovari (a1) (a2), Yaser Abdi (a1) and Foad Ghasemi (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed