Enhanced Thermal Stability of Planar Perovskite Solar Cells Through Triphenylphosphine Interface Passivation.

Autor: Thambidurai M; Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.; Energy Research Institute @NTU (ERI@N), Research Techno Plaza X-Frontier Block, Level 5, 50 Nanyang Drive, 637553, Singapore., Omer MI; Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore., Shini F; Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.; Energy Research Institute @NTU (ERI@N), Research Techno Plaza X-Frontier Block, Level 5, 50 Nanyang Drive, 637553, Singapore.; School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore., Dewi HA; Energy Research Institute @NTU (ERI@N), Research Techno Plaza X-Frontier Block, Level 5, 50 Nanyang Drive, 637553, Singapore., Jamaludin NF; Energy Research Institute @NTU (ERI@N), Research Techno Plaza X-Frontier Block, Level 5, 50 Nanyang Drive, 637553, Singapore., Koh TM; Energy Research Institute @NTU (ERI@N), Research Techno Plaza X-Frontier Block, Level 5, 50 Nanyang Drive, 637553, Singapore., Tang X; Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore., Mathews N; Energy Research Institute @NTU (ERI@N), Research Techno Plaza X-Frontier Block, Level 5, 50 Nanyang Drive, 637553, Singapore.; School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore., Dang C; Centre for OptoElectronics and Biophotonics (COEB), School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.; Energy Research Institute @NTU (ERI@N), Research Techno Plaza X-Frontier Block, Level 5, 50 Nanyang Drive, 637553, Singapore.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2022 Apr 22; Vol. 15 (8), pp. e202102189. Date of Electronic Publication: 2022 Mar 23.
DOI: 10.1002/cssc.202102189
Abstrakt: While extensive research has driven the rapid efficiency trajectory noted to date for organic-inorganic perovskite solar cells (PSCs), their thermal stability remains one of the key issues hindering their commercialization. Herein, a significant reduction in surface defects (a precursor to perovskite instability) could be attained by introducing triphenylphosphine (TPP), an effective Lewis base passivator, to the vulnerable perovskite/spiro-OMeTAD interface. Not only did TPP passivation enable a high power conversion efficiency (PCE) of 20.22 % to be achieved, these devices also exhibited superior ambient and thermal stability. Unlike the pristine device, which exhibited a sharp descend to 16 % of its initial PCE on storing in relative humidity of 10 %, at 85 °C for more than 720 h, the TPP-passivated devices retained 71 % of its initial PCE. Hence, this study presents a facile yet excellent approach to attain high-performing yet thermally stable PSCs.
(© 2022 Wiley-VCH GmbH.)
Databáze: MEDLINE
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