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IFUAP – Physics Institute BUAP (POSDOC)

Last April 2019, I wrote a project for a postdoctoral stay at IFUAP. This stay will be founded by PRODEP-SEP. The goal is to reinforce the photovoltaic area developing thin-film solar cells based on novel materials. The application specifies a 3-month deadline for a response (late July). However,  when the deadline arrives, IFUAP said that this response can spend up to  5-months with no compromise. Therefore, this project can not be started.   All of this is happening due to political reason. When the Mexican government changes most of the funds for public scientific research were frozen until politics trace the new…

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

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

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