Abstracts Book - IMRC 2018

• SC4-P041
DESIGN AND DEVELOPMENT OF Sb2SxSe3-x THIN FILM SOLAR
CELLS: AN ENVIRONMENTAL APPROACH
Alexis Gustavo Alatorre Alba 1 , Sarah Ruth Messina Fernández 1
1 Universidad Autónoma de Nayarit, Unidad Académica de Ciencias Básicas e Ingenierías,
Mexico.
Photoconductive thin films of Sb2SxSe3-x can be prepared by CBD with Eg= 1.5-
1.6 eV, as required for ideal solar absorbers. Several reports demonstrate the
use of Sb2SxSe3-x as potential absorber in thin film solar cells, reaching
conversion efficiency up to 7% depending on the deposition technique. The aim
of this work is the design and development of All-Chemically Deposited Thin Film
Solar Cells using Sb2SxSe3-x as p-absorber layer. CdS is the most used material in
thin film technologies, as n-window or buffer layer. The environmental approach
of this work focuses in the use of Cd-free complementary window layers. Here,
ZnO and SnO2 are used as alternative materials in order to minimize the use of
CdS. Chemically deposited ZnS or SnS were converts to ZnO or SnO2,
respectively through the thermal treatment in air at 450 °C. Results on the
development of photovoltaic structures type: a) TCO/CdS/Sb2SxSe3-x, b) TCO-
ZnO/Sb2SxSe3-x, c) TCO/SnO2/ Sb2SxSe3-x, d) TCO-ZnO/CdS-Sb2SxSe3-x, e) TCO-
SnO2/CdS-Sb2SxSe3-x as function of thickness and thermal treatment of the
absorber layer are presented and discussed in this work.
Acknowledgment:
We acknowledge the financial support of CONACYT-CB-258849
Keywords: Sb2SxSe3-x, Thin film, CBD
Presenting authors email: algualab@gmail.com