Abstracts Book - IMRC 2018

• SF2-P049
INFLUENCE OF GRAPHENE OXIDE CONCENTRATION ON THE
PROPERTIES OF FTO/TiO2/PTB7:PC70BM:Ag/MoO3 DEVICE
Guillermo Iván García Alvarado 1 , Ramiro Perez Campos 1 , Batriz Marcela Millán Malo 1 , Tatiana
Ivanova Román Valenzuela 1 , Sandra Andrea Mayén Hernández 2 , Francisco de MouFlores 2 ,
Claudia Gutierrez Antonio 2 , Jorge Cruz G 2 , José Santos Cruz 2 , Rodrigo Alonso Esparza Muñoz 1
1 Universidad Nacional Autónoma de México, CFATA, Mexico. 2 Universidad Autónoma de
Querétaro, Facultad de Química, Mexico.
Polymer hybrid solar cells has been demonstrated that are an excellent
candidates for photovoltaic devices, the polymer solar cells were prepared at
room temperature by spin coater technique as the type
FTO/TiO 2 /PTB7:PC 70 BM:Ag/MoO 3 , the graphene oxide was synthesized by the
modified Hummers methodology. The PTB7:PC 70 BM was dissolved in
chlorobenzene with the mixture of graphene oxide of 0, 0.5, 1, 3,and 5 wt%. The
homogeneous polymer ink was deposited by spin coater technique on soda lime
glass substrate and FTO substrates at 1000 rpm. The soda lime polymer
substrates were characterized by Hall, Uv-Vis TEM, HRTEM and XRD techniques.
The FTO substrates were used for make the devices and were characterized in
a solar simulator in order to obtained the efficiency. The resistivity values varied
as a function of silver nanoparticles concentration, 1x10 7 to 1x10 4 W-cm, the
carrier concentration 5x10 11 to 7 x10 11 cm -3 . The best efficiency, was for the
device with 1 wt% of graphene oxide.
Acknowledgment:
Authors are thankful UNAM, UAQ, CFATA UNAM campus Juriquilla, CONACYT,
Technical, Friends, Mates, Classmates and Family by support
Keywords: PTB7, PC70BM, Graphene Oxide
Presenting authors email: gigafenix10@gmail.com