Back close


Publication Type : Journal Article

Source : Chemical Engineering and Processing - Process Intensification, Volume 149, p.107817 (2020)

Url :

Keywords : Convective heat transfer, Flexible solar cells, Heat sink, High temperature sintering, ITO PET

Campus : Coimbatore

School : School of Engineering

Department : Civil

Year : 2020

Abstract : We report a plate fin heat sink assisted elevated temperature sintering of TiO2 pastes doctor-bladed onto the indium tin oxide coated polyethylene terephthalate (ITO PET) substrates to function as photoanodes in the fabrications of flexible dye sensitized solar cells (DSSCs). In this process, sintering through a convective heat transfer has been employed to heat the pastes of TiO2 nanoparticles and its composite coated onto the ITO PET substrates at an elevated temperature up to 250 °C without the thermal decomposition and loss of integrity of PET polymer and then used in the preparation of flexible DSSC photoanodes. The TiO2 composite flexible photoanode in the DSSCs has produced a maximum power conversion efficiency (PCE) of 4.11 ± 0.32 % with an open circuit voltage (Voc) of 0.77 V. These values are found higher than the PCE and Voc values reported for the ITO PET based flexible DSSCs processed by various high pressure compression methods. Besides, the mechanical stability studies of flexible DSSC photoanodes prepared by this method have shown only less than 9 % decrease in the PCE values after 30 bending cycles, indicating good mechanical stability and adhesion between the TiO2 films and ITO PET substrates.

Cite this Research Publication : G. K. Baiju, Murali, B., R. Subba Rao, Dr. Jayanarayanan K., and Dr. Duraisamy Kumaresan, “Heat sink assisted elevated temperature sintering process of TiO2 on polymer substrates for producing high performance flexible dye-sensitized solar cells”, Chemical Engineering and Processing - Process Intensification, vol. 149, p. 107817, 2020.

Admissions Apply Now