Versatile Helical Polymer Films: Chiroptical Inversion Switching and Memory with Re‐Writable (RW) and Write‐Once Read‐Many (WORM) Modes

Solid-state films of chiral polysilanes undergo an optical inversion (see Figure) above a helix–helix transition temperature, determined by the polymer molecular weight and by the thermal processing. These films could be used for re-writable or write-once, read-many data storage, depending on the molecular weight and the transition temperature. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2004/c0470_s.pdf or from the author. 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.