Journal
JOURNAL OF POWER SOURCES
Volume 471, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2020.228443
Keywords
Perovskite solar cells; Co-doping; Electron transport layer; Tin oxide; Efficiency; Stability
Funding
- AcRF Tier1 grant from Singapore Ministry of Education [MOE2019-T1-002087]
- Energy Research Institute @ NTU (ERI@N)
- UGC, New Delhi, India [25-1/2014-15 (BSR)/7-14/2007(BSR)]
- DST-SERB [EMR/2017/001999]
- UGC-SAP
- DSTFIST
- DST-PURSE
- RUSA 2.0
Ask authors/readers for more resources
The electron transport layer (ETL) plays a pivotal role in the photovoltaic performance and overall stability of the perovskite solar cell. In the present study, aluminium and lanthanum trivalent metals are co-doped into the low temperature solution processed SnO2 electron transport layer (ETL). Unlike the pristine and individually doped SnO2 ETL, the AlLa-SnO2 ETL exhibits superior transmittance, well-aligned band energy levels and efficient charge transportation. Contrary to the pristine SnO2 device with power conversion efficiency (PCE) of 17.21%, the 0.5% of Al and 0.5% of La doped SnO2 (AlLa-SnO2) ETL device display paramount PCE of 19.13%. Furthermore, recombination resistance and consistency show significant improvements, enabling excellent stability in the AlLa-SnO2 ETL device to which 90% of its initial PCE is retained despite storage at the relative humidity of 40% for 30 days without encapsulation. Henceforth, this study demonstrates the suitability of codoping as a promising approach to fabricate exceptional ETLs for efficient, stable and reproducible planar perovskite solar devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available