The aim of the Laser Processing Research Group is to obtain nanostructured functional materials through different laser techniques such as Pulsed Laser Deposition (PLD), Matrix Assisted Pulsed Laser Evaporation (MAPLE), Laser Direct Write (LDW), and Laser Surface Processing (LSP). The group develops high quality thin films of organic-inorganic nanocomposites and nanostructures such as semiconductor quantum dots, carbon nanotubes and graphene-based composites using MAPLE and PLD techniques.
The group is also investigating the chemical transformation by LSP of complex systems made of carbon-based nanomaterials, and the recrystallization of different types of nanostructures for energy, environmental, electronics and sensing applications. The experimental work developing the synthesis of the materials and their compositional-structural characterisation is complemented with computer simulations of the laser-matter interactions.
The Laser Processing Research Group is leading the development of flexible graphene-based hybrid electrodes for supercapacitors by means of the reactive inverse matrix assisted pulsed laser evaporation (RIMAPLE) technique. This method combines the simultaneous UV laser-induced chemical transformation of nanoentities and their co-deposition by means of photochemical and photothermal mechanisms. Thereby, electrodes composed of nitrogen-doped reduced graphene oxide (rGO) coated with NiO nanocrystals were synthesized by means of different precursors. The electrodes showed remarkable performance, being improved when rGO structure became doped with nitrogen-containing groups.
Furthermore, a significant enhancement of the capacitance was obtained by introducing carbon nanotubes (CNTs) in the rGO-NiO nanocomposites. The inclusion of the CNTs increases the film porosity, enables the opening of diffusion channels for the electrolyte’s ions, and avoids the aggregation of rGO sheets increasing the effective surface area. The deposited electrodes, and devices fabricated with them, can endure charge-discharge cycling at elevated specific currents and could find application in portable electronics. In summary, the RIMAPLE approach enables the versatile, simple and eco-friendly fabrication of supercapacitor hybrid electrodes constituted by complex compositions.
Enhancement of supercapacitive properties of laser deposited graphene-based electrodes through carbon nanotube loading and nitrogen doping
A. Pérez del Pino, M. Rodríguez López, M. A. Ramadan, P. García Lebière, C. Logofatu, I. Martínez-Rovira, I. Yousef, E. György
Physical Chemistry Chemical Physics 21, 25175 – 25186, 2019
A review on synthesis of graphene, h-BN and MoS2 for energy storage applications: Recent progress and perspectives
R. Kumar, S Sahoo, E. Joanni, R K Singh, R. M. Yadav, R. K. Verma, D. P. Singh, A. Pérez del Pino, S. A. Moshkalev
Nano Research 12, 2655–2694, 2019
Mineralization-inspired synthesis of magnetic zeolitic imidazole framework composites
M. Hoop, A. Terzopoulou, X. Z. Chen, A. M. Hirt, M. Charilaou, Y. Shen, F. Mushtaq, A. Pérez del Pino, C. Logofatu, L. Simonelli, A. J. deMello, P. Falcaro, C. J. Doonan, B. J. Nelson, J. Puigmartí-Luis, S. Pané
Angewandte Chemie 131, 13684–13689, 2019
Fabrication of graphene-based electrochemical capacitors through reactive inverse matrix assisted pulsed laser evaporation
A. Pérez del Pino, M. A. Ramadan, P. García Lebière, R. Ivan, C. Logofatu, I. Yousef, E György
Applied Surface Science 484, 245-256, 2019
Super-capacitive performance of manganese dioxide/graphene nano-walls electrodes deposited on stainless steel current collectors
R. Amade, A. Muyshegyan-Avetisyan, J. Martí-González, A. Pérez-del-Pino, E. György, E. Pascual, J. L. Andújar, E. Bertra-Serra
Materials 12, 483-494, 2019
UV-visible light induced photocatalytic activity of TiO2: graphene oxide nanocomposite coatings
A. Datcu, M.L. Mendoza, A. Pérez del Pino, C. Logofatu, C. Luculescu, E. György
Catalysis Today 321-322, 81-86 2019