Ultra‐High Optical Transparency of Robust, Graded‐Index, and Anti‐Fogging Silica Coating Derived from Si‐Containing Block Copolymers

A graded-index anti-reflection coating with high optical transmittance, a rapid anti-fogging capability, and excellent robustness is fabricated via the stacking of Si-containing block copolymers and simple oxidation. The porosity in the nanostructured silica layers can easily be controlled by changing the fraction of the Si-containing block in the block copolymers. The high optical transparency can be maintained in harsh chemical, mechanical, and thermal environments, suggesting that the coating will be especially advantageous for outdoor applications. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.