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Tuning of Organic Reversible Switching via Self‐Assembled Supramolecular Structures
Author(s) -
Bandyopadhyay A.,
Pal A.J.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200305309
Subject(s) - supramolecular chemistry , materials science , rose bengal , ionic bonding , molecule , supramolecular polymers , conductance , self assembly , nanotechnology , layer (electronics) , leakage (economics) , optoelectronics , chemical physics , ion , condensed matter physics , organic chemistry , chemistry , physics , economics , macroeconomics
Single‐layer devices based on Rose Bengal show large conductance switching between the on and off states (on/off ratio = 10 4 ) in the pristine form. Rose Bengal molecules have been incorporated into different water soluble “host” polymer‐based supramolecular matrices by layer‐by‐layer electrostatic self‐assembly. Different ionic groups in the supramolecular structures tune the leakage current and the on/off ratio by several orders of magnitude. The switching devices may be used in random‐access and read‐only memory applications.