4 papers
Determining Exciton Binding Energy and Reduced Effective Mass in Metal Tri-Halide Perovskites from Optical and Impedance Spectroscopy Measurements
K. Lizárraga, J. A. Guerra, L. A. Enrique-Moran +5
Accurate determination of the exciton binding energy and reduced effective mass in halide perovskites is of utmost importance for the selective design of optoelectronic devices. Al…
Optical properties of TiS as a novel thin film for single-junction and tandem solar cells
Cesar E. P. Villegas, Enesio Marinho, A. C. Dias +2
Sub-micrometer thin films are promising platforms for emerging flexible photovoltaic devices. Although the current market already produces efficient solar cells, the average wafer…
Formation mechanism, stability and role of zinc and sulfur vacancies on the electronic properties and optical response of ZnS
P. R. A de Oliveira, L. Lima, G. Felix +2
Combining experimental and theoretical tools, we report that Zn vacanciesplay an important role in the electronic and optical responses of ZnS sphalerite. The defective surface of…
On the crystalline environment of luminescent Tb ions embedded in indium tin oxide thin films: a DFT and Crystal field analysis assessment
E. Serquen, K. Lizárraga, L. A. Enrique +6
We assess the local symmetry and crystal environment of trivalent terbium ions embedded in an indium tin oxide (ITO) matrix with bixbyite structure. The \mbox{Tb} ions tend…