Performance and stability of mixed FAPbI3(0.85)MAPbBr3(0.15) halide perovskite solar cells under outdoor conditions and the effect of low light irradiation
Reyna, Yegraf (Institut Català de Nanociència i Nanotecnologia)
Salado, Manuel (Abengoa Research)
Kazim, Samrana (Abengoa Research)
Perez-Tomas, Amador (Institut Català de Nanociència i Nanotecnologia)
Ahmad, Shahzada (Abengoa Research)
Lira-Cantu, Monica (Institut Català de Nanociència i Nanotecnologia)

Date:	2016
Abstract:	We demonstrate for the first time, the real lifetime response of mixed halide perovskite solar cells (PSCs) for >1000 h under outdoor conditions and the exceptional photoresponse observed at low-light intensities attributed to the ionic-electronic nature of the material. The investigated devices were fabricated by utilizing mixed perovskites containing formamidinium (FA) and methylammonium (MA) cations, in a one step solution-process method through a solvent engineering approach. The devices' architecture is FTO/TiO (blocking layer) TiO (mesoporous)/FAPbIMAPbBr/Spiro-OMeTAD/Au. Notably, low short circuit current (J) was observed at low light intensities (<50 W/m) together with high open circuit potential build-up, which resulted in high PCEs. This response is in agreement with a "double electronic-ionic transport" model of the halide perovskite where the ionic component dominates at low light intensities and the electronic component dictates at high light irradiances. Our results highlight the exceptional stability of mixed MA/FA mesoscopic PSCs when operated for >1000 h under real outdoor conditions and the strong ionic component observed at low light irradiation.
Grants:	Ministerio de Economía y Competitividad SEV-2013-0295 Ministerio de Economía y Competitividad ENE2013-48816-C5-4-R Ministerio de Economía y Competitividad ENE2016-79282-C5-2-R Ministerio de Economía y Competitividad MAT2015-68994-REDC Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1212
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Subject:	Halide perovskite solar cells ; Hybrid solar cells ; Stability ; ISOS protocols ; Outdoor analyses
Published in:	Nano Energy, Vol. 30 (December 2016) , p. 570-579, ISSN 2211-2855

DOI: 10.1016/j.nanoen.2016.10.053

Preprint 27 p, 1.3 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles