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Decoupling the effects of defects on efficiency and stability through phosphonates in stable halide perovskite solar cells
Catalan Inst Nanosci & Nanotechnol ICN2, Spain; Barcelona Inst Sci & Technol BIST, Spain.
Ecole Polytech Fed Lausanne, Switzerland.
Eindhoven Univ Technol, Netherlands; Eindhoven Univ Technol, Netherlands.
Catalan Inst Nanosci & Nanotechnol ICN2, Spain; Barcelona Inst Sci & Technol BIST, Spain.
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2021 (English)In: Joule, E-ISSN 2542-4351, Vol. 5, no 5, p. 1246-1266Article in journal (Refereed) Published
Abstract [en]

Understanding defects is of paramount importance for the development of stable halide perovskite solar cells (PSCs). However, isolating their distinctive effects on device efficiency and stability is currently a challenge. We report that adding the organic molecule 3-phosphonopropionic acid (H3pp) to the halide perovskite results in unchanged overall optoelectronic performance while having a tremendous effect on device stability. We obtained PSCs with similar to 21% efficiency that retain similar to 100% of the initial efficiency after 1,000 h at the maximum power point under simulated AM1.5G illumination. The strong interaction between the perovskite and the H3pp molecule through two types of hydrogen bonds (H center dot center dot center dot I and O center dot center dot center dot H) leads to shallow point defect passivation that has a significant effect on device stability but not on the non-radiative recombination and device efficiency. We expect that our work will have important implications for the current understanding and advancement of operational PSCs.

Place, publisher, year, edition, pages
CELL PRESS , 2021. Vol. 5, no 5, p. 1246-1266
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URN: urn:nbn:se:liu:diva-176166DOI: 10.1016/j.joule.2021.04.003ISI: 000654225600018OAI: oai:DiVA.org:liu-176166DiVA, id: diva2:1562275
Note

Funding Agencies|Spanish MINECO through the Severo Ochoa Centers of Excellence Program [SEV-2017-0706]; King Abdulaziz City for Science and Technology (KACST); European UnionEuropean Commission [764047, 804349]; Swiss National Science FoundationSwiss National Science Foundation (SNSF)European Commission [200021_160112, IZLCZ2_170177]; "China Scholarship Council fellowship (CSC)China Scholarship Council; European CommissionEuropean CommissionEuropean Commission Joint Research Centre [785219]; Generalitat de CatalunyaGeneralitat de Catalunya [2017 SGR 327]; Spanish MINECO [ENE2017-85087-C3]; Computational Sciences for Energy Research tenure track programme of Shell; NWONetherlands Organization for Scientific Research (NWO); FOM, the NetherlandsFOM (The Netherlands)Netherlands Government [15CST04-2]; Marie Sklodowska-Curie actions under the European Unions Horizon 2020 research and innovation programme [841386]; Royal SocietyRoyal Society of LondonEuropean Commission; Tata Group [UF150033]; EPSRCUK Research & Innovation (UKRI)Engineering & Physical Sciences Research Council (EPSRC) [EP/R023980/1]; Swiss Federal Office of Energy (SFOE)-BFE [SI/501805-01]; Polish Ministry of Science and Higher Education within the Mobilnosc Plus program [1603/MOB/V/2017/0]; RyC fellowship [RYC-2017-22330]; Spanish State Research Agency [PID2019-104272RB-C54/AEI/10.13039/501100011033]; Org Energy Excelence Network [CTQ2016-81911-REDT]; Agencia de GestiodAjuts Universitaris i de Recerca (AGAUR)Agencia de Gestio DAjuts Universitaris de Recerca Agaur (AGAUR) [2017 SGR 329]; Xarxa d R+D+I Energy for Society (XRE4S); CONACYTConsejo Nacional de Ciencia y Tecnologia (CONACyT); Severo Ochoa program from Spanish MINECO [SEV-2017-0706]; CERCA Programme/Generalitat de Catalunya

Available from: 2021-06-08 Created: 2021-06-08 Last updated: 2021-06-08

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