Enhanced light-harvesting in planar perovskite solar cells using chemical bath deposited SnO2 as electron transport layer
Paper ID : 1228-ICNS
Sirus Javadpour *1, Farshad Jafarzadeh2, Donya Nazari2, Fateme Mohammadkhani2, Nima Taghavinia3
1Department of material science and engineering, Shiraz university, Shiraz, 7134851154, Iran
2Department of Materials Science and Engineering, Shiraz University, Shiraz, 7134851154, Iran
3Department of Physics, Sharif university of technology, Tehran, Iran
Perovskite solar cells have the highest efficiency record among emerging photovoltaic technologies. The most conventional electron transport layer (ETL) used in these photovoltaic devices is TiO2. However, this material has some limitations as its processing temperature is relatively high. The SnO2 based ETLs have gained popularity mainly because of their performance and cheaper deposition process. This paper reports the preparation of Organic-inorganic perovskite solar cells and the use of the chemical bath deposition (CBD) method to deposit SnO2 as ETL. The CBD method is simpler and more compatible with large scale deposition in comparison with spin coating. It was found that SnO2 which is deposited by CBD method outperforms spin coated SnO2 in terms of open-circuit voltage, short circuit current density, fill factor, and power conversion efficiency. The photoluminescence spectra and incident photon to current efficiency graph have taken from samples and results are completely in agreement with solar cells performance.
Perovskite solar cells; Electron transport materials; SnO2; Chemical bath deposition
Status : Abstract Accepted (Poster Presentation)