Publication Type : Conference Paper
Thematic Areas : Nanosciences and Molecular Medicine
Publisher : 2016 International Conference on Electrical, Electronics, and Optimization Techniques.
Source : 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT) (2016)
Keywords : Amorphous blocking layer, Annealing, back electron transfer, blocking layer, Decision support systems, DSSC, dye sensitised solar cell, dye sensitised solar cells, Dye-sensitised solar cells, electrchemical impedance, Electrochemical electrodes, Electrochemical impedance spectroscopy, electrochemical impedance spectrscopic analysis, Electrodes, electron discharge, electron lifetime, films, Fluorine doped tin oxide, Impedance, magnetron sputtering process, Nb2O5, Niobium compounds, Photoanode, Radiation detectors, Resistance, sputter deposition, Sputtering, tunnelling distance
Campus : Kochi
School : Center for Nanosciences
Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences
Department : Nanosciences and Molecular Medicine
Year : 2016
Abstract : Back electron transfer can be reduced by inserting an energy barrier layer at the interfaces of a photoanode is an effective method for improving the photovoltaic parameters in dye sensitised solar cells (DSSCs). In this work phase modified Nb2O5 blocking layer was inserted at the fluorine doped tin oxide (FTO) /TiO2 interface by Rf magnetron sputtering process. For a tunnelling distance of nbsp;40 nm, crystalline Nb2O5 blocking layer improved the efficiency close to 7% and outperformed the amorphous blocking layer. Longer electron lifetime in DSSCs having inhomogeneous Nb2O5 layer indicates that trapping de-trapping impedes the discharge of electrons to the TiO2 band edge.
Cite this Research Publication : S. Suresh, Deepak, T. G., Ni, C., Satyanarayana, M., Nair, A. S., and Pillai, V. P. M., “Electro Chemical Impedance Spectrscopic Analysis of Nb2O5 Blocking layer in Dye Sensitised Solar Cells”, in 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), 2016.