Phathaitep Raksa. The effective of TiO2 passivating layer thickness by deposited of spin coating TiCl4 on FTO glass in dye-sensitized solar cells application. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2561.
The effective of TiO2 passivating layer thickness by deposited of spin coating TiCl4 on FTO glass in dye-sensitized solar cells application
Abstract:
The TiO2 passivating layer was prepared by oxidation of spin coating TiCl4 on FTO glass for improve the efficiency of
dye-sensitized solar cells. The TiCl4 was drop on the FTO for spin coating at 1000 round/min for 30 s, the difference thickness
of passivating layer was prepared by spin coating for 1, 3, 5 and 7 cycles, then place the coated glass in furnace for oxidation
reaction at 450oC for 1 hr. The dye-sensitized solar cells with TiO2 passivating layer thickness of about 7 μm show highest
efficiency. Electrochemical impedance spectroscopy was used to study electron transfer between the glass substrate and TiO2
interface with difference passivating layer thickness in term of Nyquist plot and Bode phase plot. The electron transfer
frequency of the highest DSSCs with passivating layer was about 20-30 Hz. That confirms the TiO2 passivating layer decrease
recombination redox at FTO and electrolyte interface
King Mongkut's University of Technology North Bangkok. Central Library