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High-Quality Ruddlesden-Popper Perovskite Films Based on In Situ Formed Organic Spacer Cations
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering. Shenzhen Univ, Peoples R China.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biomolecular and Organic Electronics. Linköping University, Faculty of Science & Engineering.
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2019 (English)In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, article id 1904243Article in journal (Refereed) Epub ahead of print
Abstract [en]

Ruddlesden-Popper perovskites (RPPs), consisting of alternating organic spacer layers and inorganic layers, have emerged as a promising alternative to 3D perovskites for both photovoltaic and light-emitting applications. The organic spacer layers provide a wide range of new possibilities to tune the properties and even provide new functionalities for RPPs. However, the preparation of state-of-the-art RPPs requires organic ammonium halides as the starting materials, which need to be ex situ synthesized. A novel approach to prepare high-quality RPP films through in situ formation of organic spacer cations from amines is presented. Compared with control devices fabricated from organic ammonium halides, this new approach results in similar (and even better) device performance for both solar cells and light-emitting diodes. High-quality RPP films are fabricated based on different types of amines, demonstrating the universality of the approach. This approach not only represents a new pathway to fabricate efficient devices based on RPPs, but also provides an effective method to screen new organic spacers with further improved performance.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2019. article id 1904243
Keywords [en]
layered perovskites; light-emitting diodes; Ruddlesden-Popper perovskites; solar cells
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-160419DOI: 10.1002/adma.201904243ISI: 000483932000001PubMedID: 31456250OAI: oai:DiVA.org:liu-160419DiVA, id: diva2:1353433
Note

Funding Agencies|ERC Starting Grant [717026]; National Natural Science Foundation of China [51472164, 61704077]; 1000 Talents Program for Young Scientists of China; Shenzhen Peacock Plan [KQTD2016053112042971]; Educational Commission of Guangdong Province [2015KGJHZ006, 2016KCXTD006]; Science and Technology Planning Project of Guangdong Province [2016B050501005]; Natural Science Foundation of SZU [000050]; Joint NTU-LiU Ph.D. programme on Materials and Nanoscience; European Commission Marie Sklodowska-Curie Actions [691210]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFOMat-LiU) [2009-00971]; JSPS-NTU Joint Research Project [M4082176]; Ministry of Education Tier 2 [MOE 2017-T2-2-002]; Singapore National Research Foundation [NRF-CRP14-2014-03, NRF-NRFI-2018-04]

Available from: 2019-09-23 Created: 2019-09-23 Last updated: 2019-09-23

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Qing, JianKuang, ChaoyangWang, HeyongWang, YumingLiu, XiaokeBai, SaiHu, Zhang-JunGao, Feng
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