Chemical deposition of antimony sulfide & silver antimony sulfide

Post author:Jesus Capistran
Post published:August 15, 2019

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 during my Ph.D. program (With no AgNO3). Find it here. [1] J. Capistrán Martínez, P.K. Nair, Photoconductive thin films of…

Water molecule using Burai 1.3 and Quantum Espresso

Post author:Jesus Capistran
Post published:July 11, 2019

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 calculation and materials modeling at nano-scale. Here I share the methodology I follow for the example water-molecule Install BURAI1.3 on…

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

Post author:Jesus Capistran
Post published:June 7, 2019

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%.