%0 Journal Article
%T Langmuir每Blodgett Thin Films of Diketopyrrolopyrrole-Based Amphiphiles
%J -
%D 2018
%R https://doi.org/10.1021/acsami.7b18239
%X We report on two 羽-conjugated donor每acceptor每donor (D每A每D) molecules of amphiphilic nature, aiming to promote intermolecular ordering and carrier mobility in organic electronic devices. Diketopyrrolopyrrole was selected as the acceptor moiety that was disubstituted with nonpolar and polar functional groups, thereby providing the amphiphilic structures. This structural design resulted in materials with a strong intermolecular order in the solid state, which was confirmed by differential scanning calorimetry and polarized optical microscopy. Langmuir每Blodgett (LB) films of ordered mono- and multilayers were transferred onto glass and silicon substrates, with layer quality, coverage, and intermolecular order controlled by layer compression pressure on the LB trough. Organic field-effect transistors and organic photovoltaics devices with active layers consisting of the amphiphilic conjugated D每A每D-type molecules were constructed to demonstrate that the LB technique is an effective layer-by-layer deposition approach to fabricate self-assembled, ordered thin films
%U https://pubs.acs.org/doi/10.1021/acsami.7b18239