Time dependence in the synthesis of Cu2FeSnS4 and some of its properties
Author:
Muñoz-Malpica Jorge HumbertoORCID, Espitia-Mayorga Mery IsabelORCID, Cerón-Achicanoy María AlejandraORCID, Gómez-Cuaspud Jairo AlbertoORCID, Vera-López EnriqueORCID
Abstract
Polycrystalline Cu2FeSnS4 materials (abbreviated CFTS) were synthesized by a hydrothermal route implementing a one-step thermal treatment to measure dependence on different reaction times in the stabilization and structural, vibrational, and optoelectronic properties. The structural results have shown a tetragonal system with I-42m spatial group. The vibrational analysis by Raman spectroscopy allowed the identification of additional crystal phases arising from the synthesis procedure and corroborated the presence of a stannite phase. This evaluation showed that the reaction time gave the proposed synthesis procedure, significantly affects the semiconductor behavior of the solids; consequently, the conductivity measurements evidence a decrease from 1.02x106 to 9.84x105 W at 573 K as the synthesis time increases. These results described above, corroborated that the control of the reaction time provide a tool to successful fine-tune of the structural and conductivity properties of CFTS materials.
Publisher
Universidad Nacional de Colombia
Subject
General Engineering
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