16 research outputs found

    Photoconduction in magnesium phthalocyanine thin films

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    This paper describes the photovoltaic properties of glass/Au/MgPc/Al cells. High quantum yields were obtained with an applied voltage and moderate yields at short circuit. No evidence of a Schottky barrier or p-n junction was observed

    Organic rectifying junctions from an electron-accepting molecular wire and an electron-donating phthalocyanine.

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    Self-assembled monolayers (SAMs) of arylene-ethynylene oligomers that incorporate electron-accepting 9-fluorenone and 9-[(4-pyridyl)methylene]fluorene units in the backbone exhibit symmetrical current–voltage (I–V) characteristics, but rectifying junctions with current ratios of 20–80 at ±1 V have been obtained by protonating these wire-like molecules and ionically coupling with anionic donors

    Single-molecule electrical studies on a 7 nm long molecular wire.

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    A self-assembled arylene–ethynylene molecular wire with a rigid 7 nm long backbone exhibits symmetrical current–voltage (I–V) characteristics and a single-molecule current of 0.35 ± 0.05 nA at 0.3 V; these data are supported by theoretical calculations

    Second harmonic generation from monolayer Langmuir-Blodgett films of various push-pull pyridine and terpyridine metal complexes

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    The new ligands (E)-4-[2-(4-(N-methyl-N-hexadecylaminophenyl)ethenyl]pyridine (L1) and 4\u2032-(C6H4-p-N(Me)(hexadecyl))-2,2\u2032:6 \u2032,2\u2033-terpyridine (L2) were prepared along with their complexes [cis-Ir(CO)2ClL1], [fac-Os(CO)3Cl2L1], [ZnCl2L2] and [IrCl3L2]. Whereas these complexes show a large second-order nonlinear optical (NLO) response at the molecular level, similar to that of related organic alkylated salts as evidenced by the Electric Field Induced Second-Harmonic (EFISH) generation technique, their Langmuir-Blodgett (LB) film susceptibility is lower than that of the salts
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