Materials Scientist and Triathlete

Portfolio Category

Optoelectronic Characterization

Showing 6 Result(s)

Air Processing of Thick and Semitransparent Laminated Polymer:Non-Fullerene Acceptor Blends Introduces Asymmetric Current-Voltage Characteristics

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X. Rodríguez‐Martínez, P. Hartnagel, S. Riera‐Galindo, G. Beket, T. Österberg, F. Gao, T. Kirchartz and O. Inganäs, Adv. Funct. Mater., 2023, 2301192 Non-fullerene acceptors have recently revolutionized indoor organic photovoltaics (OPVs) with power conversion efficiencies exceeding 30% in laboratory scale. Nevertheless, transferring their superior performance to larger-scale prototyping, i.e., air-processing via roll-to-roll compatible techniques, still …

Efficient Exploration of the Composition Space in Ternary Organic Solar Cells by Combining High‐Throughput Material Libraries and Hyperspectral Imaging

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A. Harillo‐Baños, X. Rodríguez‐Martínez and M. Campoy‐Quiles, Adv. Energy Mater., 2020, 10, 1902417. Organic solar cells based on ternary active layers can lead to higher power conversion efficiencies than corresponding binaries, and improved stability. The parameter space for optimization of multicomponent systems is considerably more complex than that of binaries, due to both, a larger …

Farming thermoelectric paper

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D. Abol-Fotouh, B. Dörling, O. Zapata-Arteaga, X. Rodríguez-Martínez, A. Gómez, J. S. Reparaz, A. Laromaine, A. Roig and M. Campoy-Quiles, Energy Environ. Sci., 2019, 12, 716–726. Waste heat to electricity conversion using thermoelectric generators is emerging as a key technology in the forthcoming energy scenario. Carbon-based composites could unleash the as yet untapped potential of …

Combinatorial optimization of evaporated bilayer small molecule organic solar cells through orthogonal thickness gradients

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X. Rodríguez-Martínez, A. Sánchez-Díaz, G. Liu, M. A. Niño, J. Cabanillas-Gonzalez and M. Campoy-Quiles, Org. Electron., 2018, 59, 288–292. We report on a combinatorial optimization procedure applied to heterojunction small molecule organic solar cells made of evaporated copper phthalocyanine (CuPc) and 3,4,9,10-perylenetetracarboxylic bisbenzimidazole (PTCBI). Our strategy consists of depositing both light harvesting compounds as orthogonally …

Defect tolerant perovskite solar cells from blade coated non-toxic solvents

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Z. Bi, X. Rodríguez-Martínez, C. Aranda, E. Pascual-San-José, A. R. Goñi, M. Campoy-Quiles, X. Xu and A. Guerrero, J. Mater. Chem. A, 2018, 6, 19085–19093. The process of crystallization of lead halide perovskites by industrially relevant techniques involving non-toxic solvents is not understood completely and needs improvement. To this date, devices with the highest efficiency …

Quantifying local thickness and composition in thin films of organic photovoltaic blends by Raman scattering

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X. Rodríguez-Martínez, M. S. Vezie, X. Shi, I. McCulloch, J. Nelson, A. R. Goñi and M. Campoy-Quiles, J. Mater. Chem. C, 2017, 5, 7270–7282. We report a methodology based on Raman spectroscopy that enables the non-invasive and fast quantitative determination of local thickness and composition in thin films (from a few monolayers to hundreds of …