Premium
Linear and Hyperbranched Electron‐Acceptor Supramolecular Oligomers
Author(s) -
Santos José,
Pérez Emilio M.,
M. Illescas Beatriz,
Martín Nazario
Publication year - 2011
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201000832
Subject(s) - supramolecular chemistry , monomer , supramolecular polymers , materials science , molecule , fullerene , acceptor , polymer , covalent bond , self assembly , electron acceptor , derivative (finance) , polymer chemistry , nanotechnology , chemistry , photochemistry , organic chemistry , physics , composite material , condensed matter physics , economics , financial economics
The nanometric organization of p ‐type and n‐type materials is expected to facilitate charge mobility in OSCs, thereby preventing recombination and enhancing efficiency. Herein, the synthesis and self‐assembly of monomers comprising one or two units of a TCAQ tweezer covalently connected to a fullerene derivative is reported. Such molecules self‐assemble in solution (NMR) and on surfaces (AFM) to form linear and hyperbranched supramolecular oligomers, respectively. The self‐assembly process was also found to have very little influence on the electronic properties of the electroactive units of the monomers (CV and UV/Vis), as was expected from their matching character. These polymers constitute two of the first examples of n‐type supramolecular polymers reported to date.