Assembling semiconducting molecules by covalent attachment to a lamellar crystalline polymer substrate.

ABSTRACT: We have investigated the potential of polymers containing precisely spaced side-branches for thin film applications, particularly in the context of organic electronics. Upon crystallization, the side-branches were excluded from the crystalline core of a lamellar crystal. Thus, the surfaces of these crystals were covered by side-branches. By using carboxyl groups as side-branches, which allow for chemical reactions, we could functionalize the crystal with semiconducting molecules. Here, we compare properties of crystals differing in size: small nanocrystals and large single crystals. By assembling nanocrystals on a Langmuir trough, large areas could be covered by monolayers consisting of randomly arranged nanocrystals. Alternatively, we used a method based on local supersaturation to grow l

SUBMITTER: Machatschek R 

PROVIDER: S-EPMC4902058 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature