Title :
The charge transport and photoconduction mechanisms of TiO2-based dye sensitized solar cell
Author :
Farooq, W.A. ; Fatehmulla, Amanullah ; Ocakoglu, K. ; Yanuphanoglu, F.
Author_Institution :
Dept. of Phys. & Astron., King Saud Univ., Riyadh, Saudi Arabia
Abstract :
The charge transport and photoconduction mechanisms of the TiO2-based DSSC were analyzed under dark and illumination conditions. The effects of high and low electric fields on charge transport mechanism of the solar cell were investigated by current-voltage characteristics. It was found that the charge transport mechanism of the solar cell was controlled by the thermionic emission (TEC) at lower voltage and followed by space charge limited current (SCLC) at the higher voltages. The photovoltaic parameters of the solar cell were determined. It is evaluated that the charge transport mechanism is controlled by TEC and SCLC mechanisms, while photoconduction is controlled by supralinear recombination mechanism.
Keywords :
photoconductivity; solar cells; space charge; thermionic emission; titanium compounds; DSSC; SCLC mechanisms; TEC mechanism; TiO2; charge transport mechanism; current-voltage characteristics; dye sensitized solar cell; illumination conditions; low electric fields; photoconduction mechanisms; photovoltaic parameters; space charge limited current; supralinear recombination mechanism; thermionic emission; Capacitance; Decision support systems; Photovoltaic properties; TiO2 photoanode; impedance spectroscopy;
Conference_Titel :
High Capacity Optical Networks and Enabling Technologies (HONET), 2012 9th International Conference on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4673-2891-3
DOI :
10.1109/HONET.2012.6421439
