Highly Organized Self‐Assembled Monolayer and Multilayer Films of Titania Nanosheets

Highly organized monolayer and multilayer films of titania nanosheets have been fabricated via electrostatic self‐assembly of large‐sized sheets and subsequent ultrasonic treatment. Overlapped or crumpled portions of the nanosheets in an as‐deposited film are effectively trimmed upon ultrasonication in a tetrabutylammonium hydroxide solution, resulting in neat tiling of the nanosheets without gaps and extensive overlaps (see Figure).