Langmuir‐Blodgett Films of Transition Metal Complexes

DeArmond, M. Keith; Fried, Glenn

doi:10.1002/9780470166451.ch2

Cited by 3 publications

(1 citation statement)

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“…To date many Ru(II) complexes have been introduced into LB films. [9][10][11][12][13][14][15][16][17][18][19] These films have shown interesting optical and redox properties, [9][10][11][12][13][14][15][16][17][18][19] and found widespread applications in second-order nonlinear optics, 12 heterogeneous catalysis, 13 photovoltaic devices and photoenergy conversion cells, 14 chemical and biological sensors, 15 energy transfer and electron-transfer devices, 16 modified electrodes for electrolysis and electrogenerated chemiluminescence, 17 gas sensor, 18 and the synthesis of supramolecular complexes via interface coordination reactions. 19 On the other hand, Eu(III) β-diketonates exhibit intriguing f-f emission characteristics, line-like narrow bandwidths (typically a few nanometers), high emission efficiency and relatively long luminescent lifetimes (up to milliseconds), arousing keen interest for photoelectric devices.…”

Section: Introductionmentioning

confidence: 99%

Studies of Langmuir−Blodgett Films of an Ion Pair Metal Complex Containing Eu(III)-Ru(II) Dual Chromophores

et al. 2006

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A surfactant ion-pair complex, [Ru(bpy)(2)L][Eu(NTA)(4)](2) (in which L = 1-docosyl-2-(2- pyridyl)benzimidazole, bpy = 2,2'-bipyridine, and NTA = 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedionato) has been synthesized. The surface pressure-area isotherm measurements show that the complex forms a stable Langmuir film at the air-water interface without adding any electrolytes into the subphase. The monolayers formed at the surface pressures of 5 mN m(-1) and 20 mN m(-1), have been successfully transferred onto glass and quartz substrates with the transfer ratios close to unity. The Langmuir-Blodgett films were studied by UV-visible, infrared, and emission spectroscopies, atomic force microscopy, and cyclic voltammetry. The optical, redox, and morphology properties of the LB films were found to be significantly affected by the target surface pressures used for the film depositions.

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