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Restoration of Conductivity with TTF‐TCNQ Charge‐Transfer Salts
Author(s) -
Odom Susan A.,
Caruso Mary M.,
Finke Aaron D.,
Prokup Alex M.,
Ritchey Joshua A.,
Leonard John H.,
White Scott R.,
Sottos Nancy R.,
Moore Jeffrey S.
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201000159
Subject(s) - tetrathiafulvalene , materials science , conductivity , tetracyanoquinodimethane , salt (chemistry) , fourier transform infrared spectroscopy , chemical engineering , electrical conductor , electrical resistivity and conductivity , charge transfer complex , electrode , polymer chemistry , composite material , organic chemistry , molecule , chemistry , electrical engineering , engineering
The formation of the conductive TTF‐TCNQ (tetrathiafulvalene–tetracyanoquinodimethane) charge‐transfer salt via rupture of microencapsulated solutions of its individual components is reported. Solutions of TTF and TCNQ in various solvents are separately incorporated into poly(urea‐formaldehyde) core–shell microcapsules. Rupture of a mixture of TTF‐containing microcapsules and TCNQ‐containing microcapsules results in the formation of the crystalline salt, as verified by FTIR spectroscopy and powder X‐ray diffraction. Preliminary measurements demonstrate the partial restoration of conductivity of severed gold electrodes in the presence of TTF‐TCNQ derived in situ. This is the first microcapsule system for the restoration of conductivity in mechanically damaged electronic devices in which the repairing agent is not conductive until its release.