Abstracts Book - IMRC 2018

• SC4-P046
OPTIMIZATION OF NiO THIN FILMS WITH APPLICATION IN
PEROVSKITE SOLAR CELLS
Jesus Sanchez Diaz 1 , Jeevan Torres 1 , Ana Dibert 1 , Ariana Garcia 1 , J. M. Rivas 1 , Diego Esparza 1
1 Universidad Autónoma de Zacatecas, Unidad Academica de Ingenieria Electrica, Mexico.
In perovskite solar cells, the absorbing light layer is the perovskite (CH3NH3PbI3)
material. This layer is between an electron-transfer material (ETM) and a holetransfer
material (HTM). Normally, the ETM layer consists of a mesoporous sheet
of metal oxide, most likely TiO2, although other p-type semiconductors have
been used. For the HTM layer, commonly, molecules such as Spiro-OMeTAD and
PTAA are used. These molecules have been widely documented for their
interesting behavior. However, the costs are high and there is also the need to
add additives that are thought to decrease the stability of the solar cells. In this
work, a nickel oxide (NiO) layer was used as the HTM layer. The method to
deposit the NiO layer was spray pyrolysis due to its low cost and easy
application. Nickel chloride mixed with distilled water was used as a precursor
in the deposition and preparation of the NiO thin film. The efficiency of
perovskite solar cells depends on the thickness of the films, obtaining up to 5%
of energy conversion efficiency, with the promise of having increased stability.
Acknowledgment:
We acknowledge financial support the PRODEP program reference F- PROMEP-
38/Rev-04
SEP-23-005.
We acknowledge financial support the scholarship FONDO SECTORIAL
CONACYT-SECRETARÍA DE ENERGÍA
Keywords: perovskite, Nio thin films, stability
Presenting authors email: jasd19@live.com.mx