Abstracts Book - IMRC 2018

• SC4-P079
PHOTOVOLTAIC DEVICES OF MOLYBDENUM SULFIDE
SYNTHESIZED BY MICROWAVE ASSISTED HEATING
Gildardo Casarrubias Segura 1 , Claudia Martínez Alonso 2 , Hailin Zhao Hu 1
1 Instituto de EnergÍas Renovables Universidad Nacional Autónoma de México, NA, Mexico.
2
Escuela Nacional de Estudios Superiores de la UNAM unidad León, NA, Mexico.
In this work, MoS2 was synthesized by microwave assisted heating methods.
Ammonium molybdate ((NH4)6Mo7O24 ) and molybdenum oxide (MoO3) were
used as molybdenum source, thiourea (TU) and thioacetamide (TA) as sulfur
source. The temperature of synthesis was 200 °C and the reaction time was
varied 15 to 30 min, water was used as a solvent. By XRD the presence of
crystalline MoS2 was observed in the hexagonal (2H) and rhombohedral (3R)
phases. By SEM a flower morphology was observed, independently of the sulfur
and molybdenum source used. The atomic ratio of S:Mo was found to be close
to 2:1 by EDS analysis. Raman spectroscopy showed a characteristic peaks for
MoS2 (A1g and E12g). After the characterization, the MoS2 was applied in hybrid
solar cells as an absorber material. The structure of the cell was TCO/CdSfilm/MoS2/P3HT/C/Au.
The preliminary results suggested that the improved
efficiency of the cells with MoS2 nanostructures, compared to those without
them, should come good properties of the MoS2 as an absorber material.
Acknowledgment:
Financial supports CeMIE-Sol P25 and PAPIIT-UNAM (IN115018) is
acknowledged. Dr. Claudia Martínez-Alonso thanks DGAPA-UNAM by
posdoctoral scholarship.
Keywords: Photovoltaic Cells, Molybdenum Sulfide, Microwave Heating
Presenting authors email: gcs@ier.unam.mx