Reflector Rutile TiO2 Paste |
Paste of rutile TiO2 particles for reflection layer of DSSCs |
"This type of TiO2 paste contains relatively large rutile TiO2 particles, formed as a paste using a solvent and binder. The particles size distribution is broad, with typical size of about 300 nm. Rutile TiO2 has higher refractive index compared to anatase TiO 2, hence showing higher reflection of light. However, in dye sensitize solar cells the smaller bandgap of rutile may reduce the performance of device. The paste can be applied by blade coating or screen printing. By thermal treatment, at around 100 °C the solvent is evaporated, at below 400 °C the binder is removed and at >500 °C particles are sintered." |
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