Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/143192
Title: Improved photovoltaic performance of triple-cation mixed-halide perovskite solar cells with binary trivalent metals incorporated into the titanium dioxide electron transport layer
Authors: Thambidurai, Mariyappan
Foo, Shini
K. M. Muhammed Salim
Harikesh, Padinhare Cholakkal
Bruno, Annalisa
Nur Fadilah Jamaludin
Lie, Stener
Mathews, Nripan
Dang, Cuong
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Thambidurai, M., Foo, S., K. M. Muhammed Salim, Harikesh, P. C., Bruno, A., Nur Fadilah Jamaludin., ... Dang, C. (2019). Improved photovoltaic performance of triple-cation mixed-halide perovskite solar cells with binary trivalent metals incorporated into the titanium dioxide electron transport layer. Journal of Materials Chemistry C, 7(17), 5028-5036. doi:10.1039/c9tc00555b
Project: MOE2017-T1-002-14
Journal: Journal of Materials Chemistry C
Abstract: Among the next-generation photovoltaic technologies, perovskite solar cells have attracted significant attention and interest. In addition to the perovskite absorber component, the adjacent layers within the stack play decisive roles in the stability and overall power conversion efficiency (PCE) of a device. In this study, we demonstrated the use of a solution-processed aluminium indium (AlIn)-TiO2 compact layer as a highly effective electron transport layer (ETL) to achieve outstanding performance of perovskite solar cells; our results showed that the incorporation of AlIn into the TiO2 layer allowed better energy band alignment of the ETL-perovskite interface, improved the transparency, and enhanced the conductivity as compared to the case of pristine TiO2. Via co-doping these trivalent metals, an enhancement in voltage, current density, and even fill factor was observed. In addition, the results obtained from electrochemical impedance spectroscopy (EIS) revealed that the AlIn-TiO2-based device exhibited larger recombination resistance, which significantly benefited the performance of the devices. As a result, the optimized AlIn-TiO2 ETL device attained the surpassing PCE of 19% as compared to the pristine TiO2 solar device having the PCE of 16.67%.
URI: https://hdl.handle.net/10356/143192
ISSN: 2050-7526
DOI: 10.1039/C9TC00555B
Rights: © 2019 The Royal Society of Chemistry. All rights reserved. This paper was published in Journal of Materials Chemistry C and is made available with permission of The Royal Society of Chemistry.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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