Leslie W. Pineda

Main-Group Organometallic Chemistry, Optoelectronic Devices

Profesor Asociado, Universidad de Costa Rica

Postoctorate, Instituto de Química, UNAM 2007 (R. Cea)
Dr. rer. nat., Universitat Georg-August Göttingen 2006 (H. W. Roesky)
M. Sc., Universidad de Costa Rica 2001 (G. Valle)


Dr. Pineda received his M.Sc. degree in chemistry from the University of Costa Rica in 2001, working on the synthesis and characterization of transition-metal saccharinato complexes in oxidation state (II) with imidazole and pyrazole ligands under the academic guidance of Dr. Grettel Valle Bourrouet. He then moved to Göttingen, Germany, where he was awarded his Dr. rer. nat. degree in 2006 in the research group of Prof. Dr. Herbert W. Roesky at Georg-August University of Göttingen, on some aspects of the isolation and characterization of heavier Group 14 and 15 elements in low oxidation states. That same year, he relocated to Mexico City as Postdoctoral Fellow with Dr. Raymundo Cea Olivares at the Institute of Chemistry, National Autonomous University of Mexico (UNAM), Mexico. Since 2008, he is part of the teaching staff in the School of Chemistry at the University of Costa Rica and member of the Research Center in Electrochemistry and Chemical Energy (CELEQ).

Synthetic scheme for the synthesis of compounds 2 and 4


We are interested in the synthesis of inorganic and organometallic compounds of Main Group Elements, especially those from Group 14 and 15 functioning as hole-transport layers (HTM) and transparent conductive materials (TCM) with application in optoelectronic devices, for example, perovskite cells ( PSCs) and dye-sensitized solar cells (DSSCs). In addition, we also focus on the preparation of complexes with transition elements (Co and Cu) as redox mediators in electrolytes for DSSCs.

Structure of Compound 4


Soto-Montero, T.; Flores-Díaz, N.; Molina, D.; Soto-Navarro, A.; Lizano-Villalobos, A.; Camacho, C.; Hagfeldt, A.; Pineda, L. W. Dopant-free Hole-transport Materials with Germanium Compounds Bearing Pseudohalide and Chalcogenide Moieties for Perovskite Solar Cells. Inorg. Chem. 2020, Submitted.

 Solera-Rojas, J. A.; Ledezma-Gairaud, M.; Pineda, L. W. Síntesis y Evaluación de Complejos de Cobre(I/II) con Ligandos Polipiridínicos como Mediadores Redox en Celdas Solares Sensibilizadas con Tintes. Revista Ciencia y Tecnología, 2020, 36, 37−59.

Camargo-Cortés, E. B.; Acosta, M.; Martínez, J. C.; Pineda, L. W. IUCRData, 2020, 5, x201092.

Garita-Salazar, B.; Pineda, L. W. IUCRData, 2019, 4, x190677.

Soto-Navarro, A.; Alfaro, A.; Sotto-Tellini, V. H.; Moehl, T.; Barea, E. M.; Fabregat-Santiago, F.; Pineda. L. W. Co-adsorbing effect of bile acids containing bulky amide groups at 3β-position on the photovoltaic performance in dye-sensitized solar cells. Solar Energy, 2019, 189, 94-102.

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