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%.

Paper: Kesterite solar cell with 12.6% efficiency

Post author:Jesus Capistran
Post published:May 23, 2019

Cited 1900 times (May 2019) - Journal: Advanced Energy Materials Link: Device Characteristics of CZTSSe Thin-Film Solar Cells with 12.6% Efficiency Challenge: Decrease Voc deficit of current CZTSSe (1.13 eV) solar cells. The reported device has 12.6 % efficiency with 500 mV of Voc from a maximum of 820 mV calculated by SQ analysis. Therefore if Voc is enhanced the device would get better. But to achieve this enhancement we should understand the dependence between minority carrier lifetime and recombination process. Highlights: Kesterites are fabricated with Cu-poor and Zn-rich content Understand: junction CdS/CZTSSe, current collection and recombination mechanism Defects impact the…