O
Osvaldo Vigil-Galán
Researcher at Instituto Politécnico Nacional
Publications - 107
Citations - 2443
Osvaldo Vigil-Galán is an academic researcher from Instituto Politécnico Nacional. The author has contributed to research in topics: Thin film & Solar cell. The author has an hindex of 26, co-authored 100 publications receiving 2105 citations. Previous affiliations of Osvaldo Vigil-Galán include University of Havana.
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Journal ArticleDOI
Development of a selective chemical etch to improve the conversion efficiency of Zn-rich Cu2ZnSnS4 solar cells.
Andrew Fairbrother,E. García-Hemme,Victor Izquierdo-Roca,Xavier Fontané,F.A. Pulgarín-Agudelo,Osvaldo Vigil-Galán,Alejandro Pérez-Rodríguez,Alejandro Pérez-Rodríguez,Edgardo Saucedo +8 more
TL;DR: A selective chemical etching process based on the use of hydrochloric acid solutions to remove Zn-rich secondary phases from the CZTS film surface, which are partly responsible for the deterioration of the series resistance of the cells and, as a consequence, the conversion efficiency.
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SnS-based thin film solar cells: perspectives over the last 25 years
TL;DR: In this paper, a review about the state of the art of tin monosulfide (SnS) films and devices is presented, and an analysis about different factors that are limiting high efficiency solar cells is presented.
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Secondary phases dependence on composition ratio in sprayed Cu2ZnSnS4 thin films and its impact on the high power conversion efficiency
Osvaldo Vigil-Galán,Moises Espindola-Rodriguez,Maykel Courel,Xavier Fontané,Diouldé Sylla,Victor Izquierdo-Roca,Andrew Fairbrother,Edgardo Saucedo,Alejandro Pérez-Rodríguez,Alejandro Pérez-Rodríguez +9 more
TL;DR: In this paper, the relation between different secondary phases formation and the values of Cu/(Zn+Sn) and Zn/Sn ratios of CZTS thin films deposited by pneumatic spray pyrolysis using air as carrier gas was reported.
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Secondary phase formation in Zn‐rich Cu2ZnSnSe4‐based solar cells annealed in low pressure and temperature conditions
Andrew Fairbrother,Xavier Fontané,Victor Izquierdo-Roca,Marcel Placidi,Diouldé Sylla,Moises Espindola-Rodriguez,Simón López-Marino,Fabian A. Pulgarín,Osvaldo Vigil-Galán,Alejandro Pérez-Rodríguez,Edgardo Saucedo +10 more
TL;DR: In this paper, a two-step process consisting in the DC-magnetron sputtering deposition of a metallic stack precursor followed by a reactive anneal under a Se+Sn containing atmosphere was used to analyze the morphological, structural, and optoelectronic properties of the films and solar cell devices.
Journal ArticleDOI
Compositional optimization of photovoltaic grade Cu2ZnSnS4 films grown by pneumatic spray pyrolysis
Moises Espindola-Rodriguez,Marcel Placidi,Osvaldo Vigil-Galán,Victor Izquierdo-Roca,Xavier Fontané,Andrew Fairbrother,Diouldé Sylla,Edgardo Saucedo,Alejandro Pérez-Rodríguez,Alejandro Pérez-Rodríguez +9 more
TL;DR: In this article, compositional optimization of thin film deposition of Cu 2 ZnSnS 4 (CZTS) onto Mo/glass substrates for low-cost solar cell applications, using pneumatic spray pyrolysis technique in air ambient.