Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102899
Title: Spectacular enhancement of the thermal and photochemical stability of mapbi3 perovskite films using functionalized tetraazaadamantane as a molecular modifier
Authors: Ozerova, V. V.
Zhidkov, I. S.
Boldyreva, A.
Dremova, N. N.
Emelianov, N. A.
Shilov, G. V.
Frolova, L. A.
Kurmaev, E. Z.
Sukhorukov, A. Y.
Aldoshin, S. M.
Troshin, P. A.
Issue Date: 2021
Publisher: MDPI AG
Citation: Spectacular enhancement of the thermal and photochemical stability of mapbi3 perovskite films using functionalized tetraazaadamantane as a molecular modifier / V. V. Ozerova, I. S. Zhidkov, A. Boldyreva, et al. — DOI 10.3390/en14030669 // Energies. — 2021. — Vol. 14. — Iss. 3. — 669.
Abstract: Perovskite solar cells represent a highly promising third-generation photovoltaic tech-nology. However, their practical implementation is hindered by low device operational stability, mostly related to facile degradation of the absorber materials under exposure to light and elevated temperatures. Improving the intrinsic stability of complex lead halides is a big scientific challenge, which might be addressed using various “molecular modifiers”. These modifiers are usually rep-resented by some additives undergoing strong interactions with the perovskite absorber material, resulting in enhanced solar cell efficiency and/or operational stability. Herein, we present a deriva-tive of 1,4,6,10-tetraazaadamantane, NAdCl, as a promising molecular modifier for lead halide perovskites. NAdCl spectacularly improved both the thermal and photochemical stability of methy-lammonium lead iodide (MAPbI3 ) films and, most importantly, prevented the formation of metallic lead Pb0 as a photolysis product. NAdCl improves the electronic quality of perovskite films by healing the traps for charge carriers. Furthermore, it strongly interacts with the perovskite framework and most likely stabilizes undercoordinated Pb2+ ions, which are responsible for Pb0 formation under light exposure. The obtained results feature 1,4,6,10-tetraazaadamantane derivatives as highly promising molecular modifiers that might help to improve the operational lifetime of perovskite solar cells and facilitate the practical implementation of this photovoltaic technology. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: COMPLEX LEAD HALIDES
MOLECULAR ADDITIVES
MOLECULAR MODIFIERS
PEROVSKITE SOLAR CELLS
PHOTOSTABILITY
THERMAL STABILITY
ADDITIVES
CARRIER MOBILITY
IODINE COMPOUNDS
LAYERED SEMICONDUCTORS
LEAD COMPOUNDS
PEROVSKITE
PHOTOLYSIS
STABILITY
ELEVATED TEMPERATURE
INTRINSIC STABILITY
OPERATIONAL LIFETIME
OPERATIONAL STABILITY
PHOTOCHEMICAL STABILITY
PHOTOLYSIS PRODUCTS
PHOTOVOLTAIC TECHNOLOGY
SOLAR CELL EFFICIENCIES
PEROVSKITE SOLAR CELLS
URI: http://hdl.handle.net/10995/102899
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85106272902
PURE ID: 20908128
ISSN: 19961073
DOI: 10.3390/en14030669
metadata.dc.description.sponsorship: This work was supported by Russian Science Foundation (project No. 19-73-30020). The XPS measurements were supported by the Ministry of Education and Science of the Russian Federation (project FEUZ-2020-0060), Theme ‘Electron’, no. AAAA-A18-118020190098-5 and Russian Foundation for Basic Research (project No. 21-52-52002).
RSCF project card: 19-73-30020
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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