Document Type : Original Article
Authors
1
Basic and Applied Sciences Department, College of Engineering and Technology, Arab Academy for Science and Technology, Cairo, Egypt.
2
Electronics and Communications Engineering Department, College of Engineering and Technology, Arab Academy for Science and Technology, Cairo, Egypt
3
Electronics and Communications Engineering Department, College of Engineering and Technology, Arab Academy for Science and Technology, Cairo, Egypt. Center of Excellence in Nanotechnology, Arab Academy for Science and Technology and Maritime Transport, Cairo P.O. Box 2033, Egypt.
4
Physics and Engineering Mathematics Department, Faculty of Engineering- Elmattaria, Helwan University, Cairo, Egypt.
Abstract
Perovskite solar cells (PSCs) without a hole transport layer (HTL) are proposed in this
study as a more cost-effective and efficient alternative to PSCs with an HTL. The active
layer of these cells is CH3NH3SnI3
. To optimize the performance of the proposed PSC,
different materials for Electron Transport Layers (ETLs) were simulated. Additionally, the
impact of thickness, doping concentration, and doping concentration profile on device
performance was investigated using a 1D-Solar Cell Capacitance Simulator. According to
the simulation results, the optimal thicknesses of the ETL and the absorber were 30 nm and
1000 nm respectively, resulting in a power conversion efficiency (PCE) of 31.08 %. The
proposed HTL-free CH3NH3SnI3
.-based PSC attained an open circuit voltage of 1.1037 V,
a short-circuit current density of 31.749 𝑚𝐴/𝑐𝑚2
, and a fill factor of 88.7 %. These results
may help in the creation of highly effective and reasonably priced solar cells by providing
insight into the design and optimization of HTL-free PSCs. Given that it provides a simple
and inexpensive method of producing high-performance solar cells, the suggested PSC
structure has the potential to be a viable replacement for traditional PSCs with HTL.
)
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