Tin oxide as an efficient electron transporting material for high performance perovskite solar cells
Paper ID : 1111-ICNS
Fateme Mohamadkhani1, Sirus Javadpour *2, Nima Taghavinia3
1Department of material science and engineering, Shiraz university, Shiraz, Iran
2Department of material science and engineering, Shiraz university, Shiraz, 7134851154, Iran
3Department of Physics, Sharif university of technology, Tehran, Iran
The efficiency of perovskite solar cells (PSC) is already more than 22% and potentially suited for scale-up. In terms of manufacturing, PSCs based on SnO2 electron transporting layers (ETL) are highly promising due to high electron mobility, wide band gap and low temperature processing of SnO2 layers. The thickness of electron transporting layer is a critical factor affecting on the performance of perovskite solar cells. Here in this study, the planar perovskite solar cells with structure of glass/ FTO/ SnO2/ perovskite/ Spiro-OMeTAD/ Au were fabricated in ambient air condition. The thickness of SnO2 layer was controlled by speed of spin coating process. The spin coating speed was selected 3000, 4000, 5000 and 6000 rpm. It is found that perovskite solar cells based on SnO2 layer which deposited at 4000 rpm show the best performance. The best device show 15.1%, 0.64, 1.05 V, 22.12 mA/cm2 in efficiency, FF, Voc and Jsc, respectively.
SnO2 layer; electron transporting layer; perovskite solar cell; efficiency
Status : Abstract Accepted (Poster Presentation)