Electrochromism in ytterbium bisphthalocyanine-(stearic acid or cadmium stearate) films deposited by the Langmuir-Blodgett technique

Petty, Michael C.; Lovett, David; O’Connor, J. M.; Silver, Jack

doi:10.1016/0040-6090(89)90211-3

Cited by 56 publications

(11 citation statements)

References 13 publications

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“…A large number of studies using MPc as electron mediators in electrochemical sensors have been reported, the mediation properties varying with the structure of the Pc macrocycle, , the metal center, , substrate, − or technique used for film formation. − MPc can also be used as substitutes for natural proteins, acting as the active center of an enzyme molecule with the same efficiency and selectivity . Electrode modification with MPc has been carried out by different methods, such as Langmuir–Blodgett (LB), ,− electrostatic layer-by-layer (LbL), , physical vapor deposition (PVD), ,, casting, and electrochemical deposition. , Recently, adsorption by click chemistry in carbon nanotube layers has been described. , Distinct behaviors of films on the same electrode substrate may be achieved through different deposition methods, enabling the development of chemical/electrochemical sensors with tunable properties …”

Section: Introductionmentioning

confidence: 99%

Iron Phthalocyanine Electrodeposited Films: Characterization and Influence on Dopamine Oxidation

et al. 2016

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Electrodeposited films of iron phthalocyanine (FePc) were obtained by potential cycling and at fixed potential in 1,2-dichloroethane on glassy carbon and indium tin oxide electrodes and were characterized by cyclic voltammetry in aqueous solution. Films formed at constant potential were also characterized by electrochemical impedance spectroscopy. The mechanism of FePc film formation was investigated, with the FePc films being formed through interaction between the Pc macrocycle rings (π−π aggregates). The electrochemical oxidation of dopamine (DA) at the FePc modified electrodes in aqueous solution was probed. Raman spectroscopy showed a specific interaction between Fe atoms of the FePc complex and −NH 2 groups in the dopamine molecules. The extensive interaction between the FePc film and DA in solution demonstrates the potential use of these modified electrodes for sensitive measurement of dopamine oxidation.

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Section: Introductionmentioning

confidence: 99%

Iron Phthalocyanine Electrodeposited Films: Characterization and Influence on Dopamine Oxidation

et al. 2016

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“…1.80 • for the mixed film of compound 3, corresponding to a spacing of 4.90 nm. This value almost equals to twice the length of the hydrocarbon chains of SA molecules, indicating the formation of Y -type multilayer structure of SA molecules in the mixed film with compound 3 [59]. However, in the mixed SA films of compound 2, 4, and 5, only one diffraction peak, which is close to the one found in corresponding pure films, can be observed.…”

Section: Uv-vis Spectra and Polarized Uv-vis Spectramentioning

confidence: 50%

Arrangement of tris(phthalocyaninato) gadolinium triple-decker complexes with multi-octyloxy groups on water surface

Chen

Zhang

Zhu

et al. 2006

Journal of Colloid and Interface Science

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“…2. has a sandwich-type structure with samarium at the center of two phthalocyanine ligands facing each other in a staggered arrangement [10].…”

Section: Methodsmentioning

confidence: 99%

A novel NO/sub 2/ gas sensor based on bis[phthalocyaninato] samarium complex/silicon hybrid charge-flow transistor

Xie¹,

Jiang²,

Ren³

et al. 2003

IEEE Sensors J.

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A new kind of sandwich-like bis[2,3,9,10,16,17,23,24-octakis(octyloxy)phthalocyaninato] samarium complex Sm[Pc ] 2 (Pc = Pc(OC 8 H 17 ) 8 ) is used as film-forming material. Pure Sm[Pc ] 2 and mixture of Sm[Pc ] 2 and octadecanol(OA) deposited from both pure water and 10 4 M Cd 2+ subphases are investigated. It is found that a mixture of 1:3 Sm[Pc ] 2 :OA forms an excellent material for the fabrication of the gas-sensing Langmuir-Blodgett (LB) film by studying the film-forming characteristics. A new gas sensor has been fabricated by incorporating the multilayer LB film into the gate electrode of a metal-oxide-semiconductor field effect transistor, forming an array of charge-flow transistor. On the application of a gate voltage (V GS ), greater than the threshold voltage (V TH ), a delay was observed in the response of the drain current. This is due to the time taken for the resistive gas-sensing film to charge up to V GS . This delay characteristic was found to depend on the concentration of NO 2 . Results are presented showing that the device can detect reversibly the concentration of NO 2 gas down to 5 ppm at room temperature. Index Terms-Bis[phthalocyaninato] samarium complex, charge-flow transistor (CFT), gas sensor, Langmuir-Blodgett (LB) film, metal-oxide-semiconductor field effect transistor (MOSFET), nitrogen dioxide.

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Electrochromism in ytterbium bisphthalocyanine-(stearic acid or cadmium stearate) films deposited by the Langmuir-Blodgett technique

Cited by 56 publications

References 13 publications

Iron Phthalocyanine Electrodeposited Films: Characterization and Influence on Dopamine Oxidation

Iron Phthalocyanine Electrodeposited Films: Characterization and Influence on Dopamine Oxidation

Arrangement of tris(phthalocyaninato) gadolinium triple-decker complexes with multi-octyloxy groups on water surface

A novel NO/sub 2/ gas sensor based on bis[phthalocyaninato] samarium complex/silicon hybrid charge-flow transistor

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