Dye-sensitized Solar Cell utilizing Gold Doped Reduced Graphene Oxide Films Counter Electrode
This work is concerned with the use of gold doped reduced graphene oxide (rGO) films as counter electrode in a dye-sensitized solar cell (DSSC). The effect of gold content on the photovoltaic parameters of the device has been studied. The samples are crystalline, indicated by the presence of rGO phase. It was found that the short-circuit current density (JSC) decreases with the increase in gold content. The DSSC utilizing the sample prepared using 2.0 wt.% gold demonstrated the highest JSC, Voc and η of 0.989 mA cm-2, 0.692 V and 0.175%, respectively. The highest efficiency (η) of the device is due to the lowest leak current and charge transfer resistance (Rct).
 J.G. Nam, Y.J. Park, B.S. Kim, J.S. Lee, Scripta Materialia., 62, 148 (2010).
 H. Zhu, H. Zeng, V. Subramanian, C. Masarapu, K-H.Hung, B. Wei, Nanotechnology, 19, 465204 (5pp) (2008).
 M.Y.A. Rahman, M.M. Salleh, I.A. Talib, M. Yahaya, Ionics, 11, 275 (2005).
 J. D. Roy-Mayhew, D.J. Bozym, C. Punckt, I.A. Aksay, ACS Nano., 4, 6203 (2010).
 D.W. Zhang, X.D. Li, H.B. Li, S. Chen, Z. Sun, X.J. Yin, S.M. Huang, Carbon, 49, 5382 (2011).
 H. Wang, K. Sun, F. Tao, D. J. Stacchiola, Y.H. Hu, Angew. Chem. Int. Ed., 52, 9210 (2013).
 L. Kavan, Top Curr. Chem., 348, 53 (2014).
 L. Kavan, J.-H. Yum, M. Grätzel, Electrochim. Acta, 128, 349 (2014).
M. Janani, P. Srikrishnarka, S.V. Nair, A.S. Nair, J. Mater. Chem. A., 3, 17914 (2015).
L. Kavan, P. Liska, S.M. Zakeeruddin, M. Grätzel, Electro-chim. Acta, 195, 34 (2016).
M.Y.A. Rahman, A.S. Sulaiman, A.A. Umar, M.M. Salleh, J. Mater. Sci.: Mater. Electron., 28, 1674 (2017).
L.T. Soo, K.S. Loh, A.B. Mohamad, W.R.W. Daud, W.Y. Wong, J. Power Sources, 324, 412 (2016).
Xue, J. Liu, H. Chen, R. Wang, D. Li, J. Qu, L. Dai, Angew. Chem. Int. Ed., 51, 12124 (2012).
M.J. Ju,,J.C. Kim,, H.-J. Choi, ,I.T. Choi, S.G. Kim, K. Lim, J. Ko, J.-J. Lee, I.-Y. Jeon, J.-B. Baek, H. K. Kim, ACS Nano, 6, 5243 (2013).
Z. Wang, P. Li, Y. Chen, J. He, J. Liu, W. Zhang, Y. Li, J. Power Sources, 263, 246 (2014).
M.I.A. Umar, C.C. Yap, R. Awang, A.A. Umar, M.M. Salleh, M. Yahaya, Mater. Lett., 106, 200 (2013).
L. Roza, A.A. Umar, M.Y.A. Rahman, M.M. Salleh, Adv. Mater. Res., 364, 393 (2012).
 H. Choi, H. Kim, S. Hwang, W. Choi, M. Jeon, Sol. Energy Mater. Sol. Cells, 95, 323 (2011).
This paper has not been published before. Upon its acceptance for publication in the Journal, I, as the only senior author, agree to transfer (to the extent transferable, if I am a Government employee) to the Journal of New Materials for Electrochemical Systems, or its assignee, all the rights under the existing Copyright laws, except for the following, which the author(s) specifically retain(s):
- the right to make further copies of all or part of the published article for my use in classroom teaching;
- the right to re-use all or part of the material in a compilation of my own words, or in a textbook of which I am the author;
- the right to make copies of the published work for internal distribution within the institution which employs me.
I agree to inform my co-authors, if any, of the terms of this arrangement.