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Roberto Pacios
Researcher at Imperial College London
Publications - 39
Citations - 2967
Roberto Pacios is an academic researcher from Imperial College London. The author has contributed to research in topics: Organic solar cell & Polymer solar cell. The author has an hindex of 22, co-authored 38 publications receiving 2808 citations.
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Journal ArticleDOI
Degradation of organic solar cells due to air exposure
Kenji Kawano,Roberto Pacios,Dmitry Poplavskyy,Jenny Nelson,Donal D. C. Bradley,James R. Durrant +5 more
TL;DR: In this paper, a study of dark air-exposure degradation of organic solar cells based on photoactive blends of the conjugated polymer, poly[2-methoxy-5-(3′,7′-dimethyl octyloxy)-1,4-phenylene vinylene] (MDMO-PPV) with [6,6]-phenyl C61-butyric acid methyl ester (PCBM).
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Charge carrier mobility and lifetime of organic bulk heterojunctions analyzed by impedance spectroscopy
TL;DR: In this article, the diffusion and recombination in an absorber blend of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) with indium tin oxide (ITO) and aluminium contacts have been analyzed in the dark by means of impedance spectroscopy.
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Solution-processable polymeric solar cells: A review on materials, strategies and cell architectures to overcome 10%
TL;DR: In this article, the development of polymeric solar cells from its origin to the most efficient devices published to date is reviewed, and the authors separate these achievements into three different categories traditionally followed by the scientific community to push devices over 10% power conversion efficiency: active materials, strategies that can mainly modify the active film morphology and result in improved efficiencies for the same starting materials, and all the different cell layout/architectures that have been used in order to extract as high photocurrent as possible from the Sun.
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Determination of gap defect states in organic bulk heterojunction solar cells from capacitance measurements
Pablo P. Boix,Germà Garcia-Belmonte,Udane Muñecas,Marios Neophytou,Christoph Waldauf,Roberto Pacios +5 more
TL;DR: In this article, an energy distribution density-of-states DOS of defects in the effective band gap of organic bulk heterojunctions is determined by means of capacitance methods, which consists of calculating the junction capacitance derivative with respect to the angular frequency of the small voltage perturbation applied to thin film poly3hexylthiopheneP3HT6,6-phenyl C61-butyric acid methyl ester PCBM solar cells.
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Role of ZnO Electron-Selective Layers in Regular and Inverted Bulk Heterojunction Solar Cells
Pablo P. Boix,Jon Ajuria,Ikerne Etxebarria,Roberto Pacios,Germà Garcia-Belmonte,Juan Bisquert +5 more
TL;DR: In this article, the role of metal oxide (ZnO) electronselective layers in the operating mechanisms of bulk-heterojunction polymer−fullerene solar cells is addressed.