Chemical deposition of antimony sulfide & silver antimony sulfide

The following photographs show the first 30 minutes of the solution reaction for the chemical deposition of antimony sulfide thin films. This material is a p-type semiconductor. It is deposited as an amorphous source (Sb-S). The films have the necessary content to produce an orthorhombic lattice after heating above 250 ºC. Application Antimony sulfide is used for the research of thin-film solar cells with the following configuration TCO/CdS/Absorber/BackContact.  This film is achieved using the formula reported in the paper I publish…

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Water molecule using Burai 1.3 and Quantum Espresso

Course: Electronic properties of semiconductors by AB-INITIO Profesor: Dr. Raciel Jaimes López  (Postdoctoral at IER-UNAM) Simulation of water molecule formation using Burai 1.3 and Quantum Espresso Viewer by Jmol Last month I attended the course Electronic properties of semiconductor by AB-Initio at IER-UNAM, on the 1st day we had a quick view about the background of DFT (Density Functional Theory), plane waves and pseudopotentials. During the course, we learn about the open-code Quantum Espresso software which is used for electronic-structure…

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12% de eficiencia en el primer curso taller de Perovskitas Híbridas (IER-UNAM)

TCO/c-TiO2/m-TiO2/Perovskite/HTM/Au Ultimo día de curso-taller de fabricación de celdas solares de perovskitas hibridas. Al final del día el grupo del primer curso con la asesoría del grupo de investigación de perovskitas de IER-UNAM logró obtener una eficiencia de conversión de 12% en área activa de 0.1 cm^2.  El grupo de investigación  a cargo de la Dra. Hailin Zao de IER-UNAM al día de hoy ha logrado eficiencia record del 18%.

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