Premium
Using Sugar‐based Additives to Prolong the Lifetime of Air‐Stable Radicals in Self‐Assembled Perylene Bisimides
Author(s) -
Lāce Ilze,
Sproules Stephen,
Draper Emily R.
Publication year - 2018
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201800153
Subject(s) - perylene , electron paramagnetic resonance , radical , thin film , photochemistry , materials science , absorption (acoustics) , spectroscopy , micelle , absorption spectroscopy , chemical engineering , aqueous solution , chemistry , organic chemistry , molecule , nanotechnology , optics , physics , engineering , nuclear magnetic resonance , quantum mechanics , composite material
Sugar‐based additives were introduced into self‐assembled worm‐like micelles of amino acid functionalized perylene bisimides. The solutions were then dried to form thin films and used as photoresponsive materials. The effects of the addition of dextran and sucrose on the properties of the perylene bisimide thin film were investigated using cross‐polarized light optical microscopy, electron paramagnetic resonance (EPR) spectroscopy, rheology, UV‐vis absorption spectroscopy and electrochemistry. The radical anion is stabilized by the presence of the additives in solution and in the thin films, resulting in a significantly increased lifetimes and persistent conductivity.