Publicaciones 2011-2020

@article{RN314,
title = {Effect of the Selenium Content in the Optical Properties of the Kesterite Cu2znsns4-Xsex Phases},
author = { F. Lopez-Vergara and A. Gald\'{a}mez and P. Barahona and V. Manriquez},
url = {/brokenurl#<Go to ISI>://WOS:000393079900028},
doi = {10.4067/S0717-97072016000400028},
issn = {0717-9707},
year = {2016},
date = {2016-01-01},
journal = {Journal of the Chilean Chemical Society},
volume = {61},
number = {4},
pages = {3291-3294},
abstract = {Polycrystalline Cu2ZnSnS4-XSeX (X=1, 2, 3) compounds were synthesized by conventional solid-state reactions. The samples were characterized by powder X-ray diffraction (XRD), energy-dispersive X-ray analysis (SEM-EDS), Raman spectroscopy, diffuse reflectance UV-vis and Photoluminescence. All of phases crystallize in the tetragonal kesterite-type structure. The powder X-ray diffraction (XRD) patterns were indexed in the space group vertical bar (4) over bar No secondary phases were detected in XRD patterns. The results from diffuse reflectance show band gap between 1.26 - 1.17 eV, when S is gradually replaced by Se. The PL spectrum of Cu2ZnSnS4- xSex phases shows nearly symmetrical band, which shifted linearly to the lower energy with increasing Se content. The selenized (CZTSSe) phases are promising candidates to be used as absorbing material in solar cells},
keywords = {crystal-structure, film photovoltaics solar-cells, solid-solutions, thin-films},
pubstate = {published},
tppubtype = {article}
}

@article{RN148,
title = {Electrical Behavior of a Cu2fe0.4co0.6sns4 Ceramic},
author = { F. Lopez-Vergara and A. Gald\'{a}mez and V. Manriquez},
url = {/brokenurl#<Go to ISI>://WOS:000331238800047},
doi = {10.4067/S0717-97072013000400051},
issn = {0717-9707},
year = {2013},
date = {2013-01-01},
journal = {Journal of the Chilean Chemical Society},
volume = {58},
number = {4},
pages = {2131-2135},
abstract = {The solid solutions Cu2Fe1-XCoXSnS4, with stannite-type structure are stable up to about 800 degrees C. The electrical properties of the Cu2Fe0.4Co0.6SnS4 ceramic were investigated by complex impedance. The real and imaginary dielectric permittivity dependence with the temperature were measured between 10kHz and 1 MHz in temperature range 77-280K, finding that the ceramic present the characteristics behavior of a dielectric relaxation between 100 and 250 K, with a maximum at approximately 200 K. The electric permittivity found has orders of magnitude between 102 and 103. A space charge polarization mechanism is suggested to explain the observed electric relaxation.},
keywords = {crystals, dielectric quaternary relaxation, solar-cells, solid-solutions, stannite stannite, sulfides},
pubstate = {published},
tppubtype = {article}
}