1. Faculty of Chemical Sciences, Autonomous University of Puebla (BUAP), Puebla, Mexico
2. Chemistry Centre, Institute of Sciences, Autonomous University of Puebla (BUAP), Puebla, Mexico
3. Institute of Physics, Autonomous University of Puebla (BUAP), Puebla, Mexico
4. Research Center on Semiconductor Devices, Institute of Sciences, Autonomous University of Puebla (BUAP), Puebla, Mexico