How does temperature affect the coating bonding strength between counter electrode and FTO in QDSSCs?

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Mahmood H. M.

Dear Layla Haythoor Kharboot ;

In TiO2 films, which are often sintered at 450°C for 30 or 60 minutes for application in dye-sensitized solar cells (DSSCs), show no appreciable connectivity between the TiO2 particles. The electrode sintered at a temperature of 450°C shows a higher photocurrent attributed to the formation of the higher crystalline film. This enhancement in the interconnection between particles results in a swift diffusion of electrolytes and good transportation of electrons in the film. For example, TiO2 films sintered at higher temperatures (700°C) but for a shorter time (10 min) exhibited better connectivity between the particles with a slight reduction in surface area. For more details read the following references;

Article Effect of Sintering Profiles on Titania Interparticle Connec...
Article Effect of counter electrode, thickness and sintering tempera...

Layla Haythoor Kharboot

thanks so much, Mahmood H. M. but what about if I heat or increase the temperatures overall the system (testing temperatures), not reaction temperature

Increasing the temperatures of the overall testing system may cause side effects on the process. but , you can try to study this cairfully. hope you get good results.