ZnO Nanosheets Derived from Surfactant‐Directed Process: Growth Mechanism, and Application in Dye‐Sensitized Solar Cells
Layered basic zinc acetate (LBZA), has been successfully synthesized by employing surfactant Pluronic F127 (EO106PO70EO106) as the template in aqueous
solution. In contrast to the well studied kinetic factor in aqueous solutions, a new formation mechanism of LBZA was established based on the consideration of thermodynamic factor in aqueous solution. The hydrolysis process was slowed down by the stable
octahedral Zn2+(H2O)6 coordination through hydrogen bond interaction between Zn2+(H2O)6 and F127. The LBZA
precipitates were transformed into nanocrystalline, porous ZnO nanosheets without morphological deformation upon heating at 300°C in air. When the ZnO nanosheets are employed as photoanode in dye‐sensitized
solar cells (DSSCs), a conversion efficiency of 3.2% is obtained.