Releasing trapped excitons in 2D perovskites via pressure annealing: a cooperative interplay between lattice strain and the electronic structure

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Autor(es): dc.contributorUniversidade Federal do ABC (UFABC)-
Autor(es): dc.contributorDuke University-
Autor(es): dc.contributorBrazilian Center for Research in Energy and Materials (CNPEM)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorFreitas, Andre L.M.-
Autor(es): dc.creatorCaturello, Naidel A.M.S.-
Autor(es): dc.creatorTofanello, Aryane-
Autor(es): dc.creatorKaneko, Ulisses F.-
Autor(es): dc.creatorCorrea, Lucas E.-
Autor(es): dc.creatordos Reis, Ricardo D.-
Autor(es): dc.creatorFerreira, Fabio F.-
Autor(es): dc.creatorDalpian, Gustavo M.-
Autor(es): dc.creatorSouza, Jose A.-
Data de aceite: dc.date.accessioned2025-08-21T18:12:55Z-
Data de disponibilização: dc.date.available2025-08-21T18:12:55Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-10-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/d4qm00780h-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/302804-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/302804-
Descrição: dc.descriptionCharacteristic photon emissions in low-dimensional hybrid perovskites are strongly related to inherent distortions in the crystal lattice. These cooperative distortions, influenced by organic spacers and the confined BX6 octahedral arrangement, allow for the manipulation and control of the emitted photon energy and its nature. Herein, we observed a complex dynamic where photon emissions at both low and high energies emerge, depending on octahedral distortion and the application of hydrostatic pressure. Our results demonstrated that samples featuring different octahedral sizes and distortions but having a common organic spacer (BA2MAPb2Br7 and BA2MAPb2I7) showed low-energy photon emission attributed to self-trapped excitons (STEs), which can be tuned towards free exciton (FE) states through pressure annealing. Experimental and theoretical results revealed that octahedral distortions in 2D perovskites played a crucial role in controlling emission, disclosing their complex structure and electronic relationship.-
Descrição: dc.descriptionMarathon-
Descrição: dc.descriptionAgência Nacional do Petróleo, Gás Natural e Biocombustíveis-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionEnergy Market Authority of Singapore-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFederal University of ABC (UFABC) CCNH, SP-
Descrição: dc.descriptionThomas Lord Department of Mechanical Engineering and Materials Science Duke University-
Descrição: dc.descriptionBrazilian Synchrotron Light Laboratory (LNLS) Brazilian Center for Research in Energy and Materials (CNPEM), SP-
Descrição: dc.descriptionSão Paulo State University - UNESP Institute of Geosciences and Exact Sciences (IGCE) Physics Department, SP-
Descrição: dc.descriptionInstitute of Physics University of São Paulo (USP)-
Descrição: dc.descriptionSão Paulo State University - UNESP Institute of Geosciences and Exact Sciences (IGCE) Physics Department, SP-
Descrição: dc.descriptionCNPq: (305229/2020-6-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionEnergy Market Authority of Singapore: 20220790-
Descrição: dc.descriptionFAPESP: 2023/09820-2-
Formato: dc.format507-519-
Idioma: dc.languageen-
Relação: dc.relationMaterials Chemistry Frontiers-
???dc.source???: dc.sourceScopus-
Título: dc.titleReleasing trapped excitons in 2D perovskites via pressure annealing: a cooperative interplay between lattice strain and the electronic structure-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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