Luis Camacho

University of Córdoba

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María T. Martín‐Romero

Universidade de São Paulo

Eulogia Muñoz

University of Córdoba

Juan J. Giner‐Casares

University of Córdoba

Gustavo de Miguel

University of Córdoba

Marta Pérez-Morales

University of Córdoba

Juan Ruiz

Tekniker

Rafael Rodríguez‐Amaro

University of Córdoba

Juan José Ruíz Ruíz

Universidad de Jaén

José M. Pedrosa

Universidad Pablo de Olavide

J.L. Avila

Universidad del Valle

Cooperative Institutions

University of Córdoba

Universidad Complutense de Madrid

Cordoba University

Centre National de la Recherche Scientifique

Universitat de València

Centro Médico Sanitas Córdoba

Universidad de Granada

Rede de Química e Tecnologia

Universidad Autónoma de Madrid

Centro Científico Tecnológico - Córdoba

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New Applications and Properties of Langmuir-Blodgett Films

Kluwer Academic Publishers eBooks (2006)

Inmaculada Prieto Marı́a T. Martı́n-Romero Luis Camacho

Surface Modification

10.1007/0-306-48108-1_14

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Citations (0)

Reduction of C=C double bonds on a mercury electrode

Journal of Electroanalytical Chemistry (1983)

Luis Camacho Juan Ruiz

Polarography

Limiting

Limiting current

Mercury

Atmospheric temperature range

10.1016/s0022-0728(83)80618-4

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Citations (9)

Application of the cyclic semi-integral voltammetry and cyclic semi-differential voltammetry to the determination of the reduction mechanism of a Ni–porphyrin

Journal of Electroanalytical Chemistry (2002)

José M. Pedrosa Marı́a T. Martı́n-Romero Juan Ruiz Luis Camacho

10.1016/s0022-0728(02)00746-5

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Citations (11)

A‐Site Cation Engineering in 2D Ruddlesden–Popper (BA)₂(MA_1‐_xA_x)₂Pb₃I₁₀ Perovskite Films

Advanced Optical Materials (2021)

Susana Ramos‐Terrón Cristóbal Verdugo‐Escamilla Luis Camacho Gustavo de Miguel

Abstract The partial incorporation of large organic cations into the octahedral sites of 3D perovskites has been widely investigated but few works have reported their addition in 2D Ruddlesden–Popper (RP) perovskites. Here, the gradual substitution of the methylammonium (MA) cation in thin films of 2D RP perovskites (BA) 2 (MA) 2 Pb 3 I 10 (BA = n ‐butylammonium) by guanidinium (Gua), dimethylammonium (DA), ethylammonium (EA), rubidium (Rb), propylammonium (PA), cesium (Cs) or formamidinium (FA) to synthesize mixed A‐cation (BA) 2 (MA 1‐ x A x ) 2 Pb 3 I 10 perovskites has been studied. The limit in the percentage of the A‐site cation at which it is homogeneously incorporated in all n phases without destabilizing the overall structure is determined. It is found that the structural changes in the 2D RP perovskites may lead to modifications of the optoelectronic properties as larger bandgap (EA), blue‐shift of the PL peak position (above the threshold), strong quenching of the PL (Cs) or reduced concentration of trap states (Gua and EA). Solar devices fabricated with the different mixed A‐cation 2D RP display an enhanced performance for those perovskites containing low percentages of Gua or EA cations. This characterization is very valuable to correlate the size and shape of the A‐cation with the changes of the properties of the material.

Formamidinium

Caesium

Rubidium

10.1002/adom.202100114

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Citations (11)

Ion-Mediated Aggregation of Gold Nanoparticles for Light-Induced Heating

Applied Sciences (2017)

David Alba-Molina Marı́a T. Martı́n-Romero Luis Camacho Juan J. Giner‐Casares

Photothermal therapy is proposed as a straightforward manner of killing cancer cells, which a plasmon field of gold nanoparticles is activated by incoming light resonance leading to a local increase of temperature. This photothermal effect is strongly dependent on the plasmonic features of the nanoparticles. Herein, we study the effect of the ion-mediated aggregation of citrate-capped small spherical gold nanoparticles on the plasmonic band and the photothermal performance. An intermediate value of ionic strength has been found to be optimum with respect to the photothermal capabilities of the gold nanoparticles.

Photothermal effect

Plasmonic Nanoparticles

10.3390/app7090916

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Citations (24)

Orientation and Organization of Langmuir−Blodgett Mixed Films Consisting of a Phospholipid and a Viologen Studied by Infrared Spectroscopy

The Journal of Physical Chemistry B (2000)

J. Fernández Juan Ruiz Luis Camacho Marı́a T. Martı́n-Romero Eulogia Muñoz

Infrared transmission and reflection−absorption spectroscopies were used to determine the orientation of Langmuir−Blodgett (LB) mixed films consisting of a phospholipid (DMPA) and a viologen (TMV) in a ratio of TMV:DMPA = 1:2. For comparison, the orientation of a DMPA monolayer was also studied. No important changes were observed for the organization of the DMPA monolayer when the TMV molecules were incorporated. The alkyl chains of both compounds adopted a hexagonal configuration where these alkyl tails were fully extended with all-trans conformation and an average tilt angle with respect to the support close to 20°. Further information about the hydrated CO groups and the orientation of the phospholipid headgroups was obtained from the CO stretching vibration mode and from the 1300−1000 cm-1 spectrum region, respectively. Finally, the average tilt angle for the plane of the bipyridyl group with respect to the substrate surface was estimated close to 10° from UV−visible absorption spectroscopy with plane polarized light (s and p) under different angles of incidence. Moreover, the bipyridyl group was located encapsulated between the headgroups of the phospholipid and the solid surface.

Attenuated total reflection

10.1021/jp000474k

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Citations (20)

Electrochemical reduction of 7-aminodesacetoxy[5-thio-(1-N-methyltetrazoyl)]cephalosporanic acid and its determination by differential-pulse polarography

The Analyst (1984)

Luis Camacho J.L. Avila Ángeles Heras F. García-Blanco

L. Camacho, J. L. Avila, A. M. Heras and F. García-Blanco, Analyst, 1984, 109, 1507 DOI: 10.1039/AN9840901507

Polarography

Thio-

10.1039/an9840901507

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