Journal of Scientific and Technical Research (Sharda University, Noida)

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Photo-Current Enhancement at Cu/P-Cu2O/rGO-Electrolyte Interface


Affiliations
1 Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Sri Lanka
     

   Subscribe/Renew Journal


A considerable photocurrent enhancement was found at the Cu/p-Cu2O/rGO-electrolyte interface in a photo-electrochemical cell with compared to that of Cu/p-Cu2O-electrolyte interface. The reason for the photocurrent enhancement may be due to the efficient charge separation process provided at Cu/p-Cu2O/rGO-electrolyte interface. Here rGO (reduced graphene oxide) acts as an electron acceptor for the photo-generated charge carriersas it readily accept electrons from the conduction band of p-Cu2O. rGO was synthesized using electro-phoretic deposition (EPD) technique. Fabricated samples were characterized using diffuse reflectance spectra, photocurrent action spectra and the time development of the photocurrent of photo-electrochemical cells.

Keywords

Photo-Current, Electrolyte Interface, Photo Electrochemical Cell.
User
Subscription Login to verify subscription
Notifications
Font Size

  • Hagfeldt, A., Boschloo, G., Sun, L., Kloo, L., and Pettersson, H. (2010). Chem. Rev., 110, 6598

  • Tran, P. D., Batabyal, S. K., Pramana, S. S., Barber, J., Wongand, L. H., and Loo, S. C. J. (2012). Nanoscale, 4, 3875

  • An, S. J., Zhu, Y., Lee, S. H., Stoller, M. D., Emilsson, T., Park, S., Velamakanni, A., An, J., and Ruoff, R. S. (2010). Journal of Physical Chemistry Letter, 1, 1259

  • Musa, A. O., Akomolafe, T., and Carter, M. J. (1998). Solar energy Materials and solar cells, 51, 306

  • Abdu, Y., and Musa, A. O. (2009). Bayero Journal of Pure and Applied Sciences, 2, 9-11

  • Ismail, R. A., Ramadhan, I., and Mustafa, A. (2005). Chinese Physics Letter, 22, 2977

  • Liyanaarachchi, U. S., Fernando, C. A. N., Foo, K. L., Hashim, U., and Maza, M. (2015). Chinese Journal of Physics, 53, 040803-1-040803-17

  • Hummers, W. S., and. Offeman, R. E. (1958). Journal of American Chemical Society, 80, 1339

  • Zhang, Y., Tang, Z., Fu, X., and Xu, Y. (2010). ACS Nano, 4, 7303-7314


Abstract Views: 204

PDF Views: 3




  • Photo-Current Enhancement at Cu/P-Cu2O/rGO-Electrolyte Interface

Abstract Views: 204  |  PDF Views: 3

Authors

S. P. A. U. K. Samarakoon
Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Sri Lanka
C. A. N. Fernando
Nano Technology Research Laboratory, Department of Electronics, Wayamba University of Sri Lanka, Sri Lanka

Abstract


A considerable photocurrent enhancement was found at the Cu/p-Cu2O/rGO-electrolyte interface in a photo-electrochemical cell with compared to that of Cu/p-Cu2O-electrolyte interface. The reason for the photocurrent enhancement may be due to the efficient charge separation process provided at Cu/p-Cu2O/rGO-electrolyte interface. Here rGO (reduced graphene oxide) acts as an electron acceptor for the photo-generated charge carriersas it readily accept electrons from the conduction band of p-Cu2O. rGO was synthesized using electro-phoretic deposition (EPD) technique. Fabricated samples were characterized using diffuse reflectance spectra, photocurrent action spectra and the time development of the photocurrent of photo-electrochemical cells.

Keywords


Photo-Current, Electrolyte Interface, Photo Electrochemical Cell.

References