Langmuir-Blodgett (LB) films of isomeric donor-(π-bridge)-acceptor molecules with either a hydrophobically substituted acceptor [D-π-A-C 16H33 (1)] or donor [A-π-D-C16H33 (2)] exhibit second-harmonic generation and asymmetric current-voltage characteristics: a reversed polarity for rectification arises from an inversion of the dipole orientations in the two types of monolayer.
Dipole reversal in Langmuir-Blodgett films of an optically nonlinear dye and its effect on the polarity for molecular rectification / D. Locatelli, M. Amiri, G.J. Ashwell, S. Quici, D. Roberto, B.J. Robinson - In: V Convegno Nazionale sulla Scienza e Tecnologia dei Materiali / Giaime Marongiu. - [s.l] : Centro Stampa INSTM, 2005. - pp. 4203-4205 (( Intervento presentato al 5. convegno Convegno Nazionale sulla Scienza e Tecnologia dei Materiali tenutosi a Geremeas Maracalagonis (Cagliari), Italia nel 2005 [10.1039/b506765k].
Dipole reversal in Langmuir-Blodgett films of an optically nonlinear dye and its effect on the polarity for molecular rectification
D. LocatelliPrimo
;D. RobertoPenultimo
;
2005
Abstract
Langmuir-Blodgett (LB) films of isomeric donor-(π-bridge)-acceptor molecules with either a hydrophobically substituted acceptor [D-π-A-C 16H33 (1)] or donor [A-π-D-C16H33 (2)] exhibit second-harmonic generation and asymmetric current-voltage characteristics: a reversed polarity for rectification arises from an inversion of the dipole orientations in the two types of monolayer.
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